2003-04-24 13:14:00 +00:00
|
|
|
|
<html>
|
|
|
|
|
|
|
|
|
|
|
|
<head>
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<meta http-equiv=Content-Type content="text/html; charset=windows-1252">
|
|
|
|
|
|
<meta name=Generator content="Microsoft Word 10 (filtered)">
|
2003-04-24 13:14:00 +00:00
|
|
|
|
<title>Scripting Java</title>
|
2005-09-19 11:37:42 +00:00
|
|
|
|
|
|
|
|
|
|
<style>
|
|
|
|
|
|
<!--
|
|
|
|
|
|
/* Font Definitions */
|
|
|
|
|
|
@font-face
|
|
|
|
|
|
{font-family:Helvetica;
|
|
|
|
|
|
panose-1:2 11 6 4 2 2 2 2 2 4;}
|
|
|
|
|
|
@font-face
|
|
|
|
|
|
{font-family:Courier;
|
|
|
|
|
|
panose-1:2 7 4 9 2 2 5 2 4 4;}
|
|
|
|
|
|
@font-face
|
|
|
|
|
|
{font-family:Times;
|
|
|
|
|
|
panose-1:2 2 6 3 5 4 5 2 3 4;}
|
|
|
|
|
|
@font-face
|
|
|
|
|
|
{font-family:Geneva;
|
|
|
|
|
|
panose-1:0 0 0 0 0 0 0 0 0 0;}
|
|
|
|
|
|
/* Style Definitions */
|
|
|
|
|
|
p.MsoNormal, li.MsoNormal, div.MsoNormal
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;}
|
|
|
|
|
|
h1
|
|
|
|
|
|
{margin-top:16.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:8.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:18.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
}
|
|
|
|
|
|
h2
|
|
|
|
|
|
{margin-top:12.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:14.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
}
|
|
|
|
|
|
h3
|
|
|
|
|
|
{margin-top:8.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
}
|
|
|
|
|
|
h4
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:3.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
}
|
|
|
|
|
|
h5
|
|
|
|
|
|
{margin-top:3.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:3.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:14.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:fuchsia;}
|
|
|
|
|
|
h6
|
|
|
|
|
|
{margin-top:3.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:3.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:fuchsia;}
|
|
|
|
|
|
p.MsoHeading7, li.MsoHeading7, div.MsoHeading7
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:fuchsia;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.MsoHeading8, li.MsoHeading8, div.MsoHeading8
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Helvetica;
|
|
|
|
|
|
color:fuchsia;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.MsoHeading9, li.MsoHeading9, div.MsoHeading9
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:.75in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Helvetica;
|
|
|
|
|
|
color:fuchsia;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.MsoFootnoteText, li.MsoFootnoteText, div.MsoFootnoteText
|
|
|
|
|
|
{margin-top:3.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:3.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;}
|
|
|
|
|
|
p.MsoHeader, li.MsoHeader, div.MsoHeader
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;}
|
|
|
|
|
|
p.MsoFooter, li.MsoFooter, div.MsoFooter
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;}
|
|
|
|
|
|
span.MsoFootnoteReference
|
|
|
|
|
|
{vertical-align:super;}
|
|
|
|
|
|
a:link, span.MsoHyperlink
|
|
|
|
|
|
{color:red;
|
|
|
|
|
|
font-style:italic;
|
|
|
|
|
|
text-decoration:underline;}
|
|
|
|
|
|
a:visited, span.MsoHyperlinkFollowed
|
|
|
|
|
|
{color:purple;
|
|
|
|
|
|
text-decoration:underline;}
|
|
|
|
|
|
p.MsoDocumentMap, li.MsoDocumentMap, div.MsoDocumentMap
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
background:navy;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Geneva;
|
|
|
|
|
|
color:black;}
|
|
|
|
|
|
p.ListBullet, li.ListBullet, div.ListBullet
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:maroon;}
|
|
|
|
|
|
p.ListBullet0, li.ListBullet0, div.ListBullet0
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:maroon;}
|
|
|
|
|
|
p.ListBullet1, li.ListBullet1, div.ListBullet1
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:maroon;}
|
|
|
|
|
|
p.ListBullet2, li.ListBullet2, div.ListBullet2
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:maroon;}
|
|
|
|
|
|
p.ListNumber, li.ListNumber, div.ListNumber
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;
|
|
|
|
|
|
layout-grid-mode:line;}
|
|
|
|
|
|
p.ListNumber0, li.ListNumber0, div.ListNumber0
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;
|
|
|
|
|
|
layout-grid-mode:line;}
|
|
|
|
|
|
p.ListNumber1, li.ListNumber1, div.ListNumber1
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;}
|
|
|
|
|
|
p.ListNumber2, li.ListNumber2, div.ListNumber2
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;}
|
|
|
|
|
|
p.ListVariable, li.ListVariable, div.ListVariable
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:green;}
|
|
|
|
|
|
p.ListVariable0, li.ListVariable0, div.ListVariable0
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:purple;}
|
|
|
|
|
|
p.ListVariableTerm, li.ListVariableTerm, div.ListVariableTerm
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:purple;}
|
|
|
|
|
|
span.bold
|
|
|
|
|
|
{font-family:Times;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.CellBody, li.CellBody, div.CellBody
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;}
|
|
|
|
|
|
p.CellCode, li.CellCode, div.CellCode
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Courier;
|
|
|
|
|
|
color:navy;}
|
|
|
|
|
|
p.CellHeading, li.CellHeading, div.CellHeading
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.CellSubhead, li.CellSubhead, div.CellSubhead
|
|
|
|
|
|
{margin-top:2.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:2.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.ChapterTitle, li.ChapterTitle, div.ChapterTitle
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:1.5in;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:right;
|
|
|
|
|
|
font-size:24.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:red;}
|
|
|
|
|
|
p.ChapterLabel, li.ChapterLabel, div.ChapterLabel
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:24.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:right;
|
|
|
|
|
|
page-break-before:always;
|
|
|
|
|
|
font-size:48.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.Code, li.Code, div.Code
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:-67.7pt;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:"Courier New";
|
|
|
|
|
|
color:green;
|
|
|
|
|
|
letter-spacing:-.5pt;}
|
|
|
|
|
|
p.CodeEmphasis, li.CodeEmphasis, div.CodeEmphasis
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:-67.7pt;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:"Courier New";
|
|
|
|
|
|
color:green;
|
|
|
|
|
|
letter-spacing:-.5pt;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
p.CodeNum, li.CodeNum, div.CodeNum
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:-67.7pt;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:10.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:"Courier New";
|
|
|
|
|
|
color:green;
|
|
|
|
|
|
letter-spacing:-.5pt;}
|
|
|
|
|
|
p.Comment, li.Comment, div.Comment
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:blue;
|
|
|
|
|
|
text-decoration:underline;}
|
|
|
|
|
|
span.emphasis
|
|
|
|
|
|
{font-family:Times;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.Epigraph, li.Epigraph, div.Epigraph
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:right;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.EpigraphAuthor, li.EpigraphAuthor, div.EpigraphAuthor
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:right;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;}
|
|
|
|
|
|
p.EpigraphCitation, li.EpigraphCitation, div.EpigraphCitation
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:24.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:right;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:black;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.ExampleTitle, li.ExampleTitle, div.ExampleTitle
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:-.2in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:center;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:green;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.FigureHolder, li.FigureHolder, div.FigureHolder
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
text-align:center;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:maroon;}
|
|
|
|
|
|
p.FigureTitle, li.FigureTitle, div.FigureTitle
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:center;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:maroon;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.ListSimple, li.ListSimple, div.ListSimple
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:blue;}
|
|
|
|
|
|
p.ListVariableTerm0, li.ListVariableTerm0, div.ListVariableTerm0
|
|
|
|
|
|
{margin:0in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:green;}
|
|
|
|
|
|
span.literal
|
|
|
|
|
|
{font-family:Courier;
|
|
|
|
|
|
color:red;}
|
|
|
|
|
|
p.Note, li.Note, div.Note
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.NoteCode, li.NoteCode, div.NoteCode
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
line-height:10.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Courier;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.NoteListBullet, li.NoteListBullet, div.NoteListBullet
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.75in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.NoteListNumber, li.NoteListNumber, div.NoteListNumber
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.75in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.NoteWarning, li.NoteWarning, div.NoteWarning
|
|
|
|
|
|
{margin-top:6.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:6.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:purple;}
|
|
|
|
|
|
p.NoteWarningCode, li.NoteWarningCode, div.NoteWarningCode
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
line-height:10.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Courier;
|
|
|
|
|
|
color:purple;}
|
|
|
|
|
|
p.NoteWarningListBullet, li.NoteWarningListBullet, div.NoteWarningListBullet
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.75in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:purple;}
|
|
|
|
|
|
p.NoteWarningListNumber, li.NoteWarningListNumber, div.NoteWarningListNumber
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.75in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:purple;}
|
|
|
|
|
|
span.onlineitem
|
|
|
|
|
|
{font-family:Times;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.Quote, li.Quote, div.Quote
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.25in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.RefSynopsis, li.RefSynopsis, div.RefSynopsis
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:0in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:fuchsia;}
|
|
|
|
|
|
p.RefPurpose, li.RefPurpose, div.RefPurpose
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:0in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:10.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:fuchsia;}
|
|
|
|
|
|
span.replaceable
|
|
|
|
|
|
{font-family:Courier;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
p.SidebarBody, li.SidebarBody, div.SidebarBody
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.25in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.SidebarCode, li.SidebarCode, div.SidebarCode
|
|
|
|
|
|
{margin-top:0in;
|
|
|
|
|
|
margin-right:.25in;
|
|
|
|
|
|
margin-bottom:0in;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
margin-bottom:.0001pt;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
line-height:10.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:9.0pt;
|
|
|
|
|
|
font-family:Courier;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.SidebarListBullet, li.SidebarListBullet, div.SidebarListBullet
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.25in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
page-break-after:avoid;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
p.SidebarListNumber, li.SidebarListNumber, div.SidebarListNumber
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.25in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:justify;
|
|
|
|
|
|
text-indent:-.25in;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;
|
|
|
|
|
|
layout-grid-mode:line;}
|
|
|
|
|
|
p.SidebarTitle, li.SidebarTitle, div.SidebarTitle
|
|
|
|
|
|
{margin-top:4.0pt;
|
|
|
|
|
|
margin-right:.25in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.25in;
|
|
|
|
|
|
text-align:center;
|
|
|
|
|
|
border:none;
|
|
|
|
|
|
padding:0in;
|
|
|
|
|
|
font-size:18.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:teal;}
|
|
|
|
|
|
span.subscript
|
|
|
|
|
|
{font-family:Times;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
position:relative;
|
|
|
|
|
|
top:3.0pt;}
|
|
|
|
|
|
span.superscript
|
|
|
|
|
|
{color:red;
|
|
|
|
|
|
position:relative;
|
|
|
|
|
|
top:-3.0pt;}
|
|
|
|
|
|
span.Symbol
|
|
|
|
|
|
{font-family:Symbol;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
border:none;}
|
|
|
|
|
|
p.TableTitle, li.TableTitle, div.TableTitle
|
|
|
|
|
|
{margin-top:12.0pt;
|
|
|
|
|
|
margin-right:.5in;
|
|
|
|
|
|
margin-bottom:4.0pt;
|
|
|
|
|
|
margin-left:.5in;
|
|
|
|
|
|
text-align:center;
|
|
|
|
|
|
line-height:12.0pt;
|
|
|
|
|
|
font-size:10.0pt;
|
|
|
|
|
|
font-family:Times;
|
|
|
|
|
|
color:navy;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
span.technicalitalic
|
|
|
|
|
|
{font-family:Times;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
span.userinput
|
|
|
|
|
|
{font-family:Courier;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-weight:bold;}
|
|
|
|
|
|
span.userinputreplaceable
|
|
|
|
|
|
{font-family:Courier;
|
|
|
|
|
|
color:red;
|
|
|
|
|
|
font-weight:bold;
|
|
|
|
|
|
font-style:italic;}
|
|
|
|
|
|
/* Page Definitions */
|
|
|
|
|
|
@page Section1
|
|
|
|
|
|
{size:8.5in 11.0in;
|
|
|
|
|
|
margin:1.5in 2.0in 1.5in 2.0in;}
|
|
|
|
|
|
div.Section1
|
|
|
|
|
|
{page:Section1;}
|
|
|
|
|
|
/* List Definitions */
|
|
|
|
|
|
ol
|
|
|
|
|
|
{margin-bottom:0in;}
|
|
|
|
|
|
ul
|
|
|
|
|
|
{margin-bottom:0in;}
|
|
|
|
|
|
-->
|
|
|
|
|
|
</style>
|
|
|
|
|
|
|
2003-04-24 13:14:00 +00:00
|
|
|
|
</head>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<body lang=EN-US link=red vlink=purple>
|
|
|
|
|
|
|
|
|
|
|
|
<div class=Section1>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=ChapterTitle>Scripting Java</p>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>This paper shows how to use Rhino to reach beyond JavaScript
|
|
|
|
|
|
into Java.<a href="#_ftn1" name="_ftnref1" title=""><span
|
|
|
|
|
|
class=MsoFootnoteReference><span class=MsoFootnoteReference><span
|
|
|
|
|
|
style='font-size:10.0pt;font-family:Times;color:black'>[1]</span></span></span></a>
|
|
|
|
|
|
Scripting Java has many uses. It allows us to write powerful scripts quickly by
|
|
|
|
|
|
making use of the many Java libraries available. We can test Java classes by
|
|
|
|
|
|
writing scripts. We can also aid our Java development by using scripting for <span
|
|
|
|
|
|
class=emphasis><span style='color:red'>exploratory programming</span></span>.
|
|
|
|
|
|
Exploratory programming is the process of learning about what a library or API
|
|
|
|
|
|
can do by writing quick programs that use it. As we will see, scripting makes
|
|
|
|
|
|
this process easier.</p>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>Note that the ECMA standard doesn<73>t cover communication with
|
2003-04-24 13:14:00 +00:00
|
|
|
|
Java (or with any external object system for that matter). All the
|
2005-09-19 11:37:42 +00:00
|
|
|
|
functionality covered in this chapter should thus be considered an extension.</p>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<h1>Accessing Java packages and classes</h1>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>Every piece of Java code is part of a class. Every Java
|
2003-04-24 13:14:00 +00:00
|
|
|
|
class is part of a package. In JavaScript, however, scripts exist outside of
|
|
|
|
|
|
any package hierarchy. How then, do we access classes in Java packages?</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>Rhino defines a top-level variable named <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>Packages</span></span>. The
|
|
|
|
|
|
properties of the <span class=technicalitalic><span style='color:red'>Packages</span></span>
|
|
|
|
|
|
variable are all the top-level Java packages, such as <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java</span></span> and <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>com</span></span>.<2E> For example,
|
|
|
|
|
|
we can access the value of the <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>java</span></span> package:</p>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> Packages.java</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[JavaPackage java]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>As a handy shortcut, Rhino defines a top-level variable <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java</span></span> that is
|
|
|
|
|
|
equivalent to <span class=technicalitalic><span style='color:red'>Packages.java</span></span>.
|
2003-04-24 13:14:00 +00:00
|
|
|
|
So the previous example could be even shorter:</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> java</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[JavaPackage java]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>We can access Java classes simply by stepping down the
|
2003-04-24 13:14:00 +00:00
|
|
|
|
package hierarchy:</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> java.io.File</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[JavaClass java.io.File]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>If your scripts access a lot of different Java classes it
|
2003-04-24 13:14:00 +00:00
|
|
|
|
can get awkward to use the full package name of the class every time. Rhino
|
2005-09-19 11:37:42 +00:00
|
|
|
|
provides a top-level function <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>importPackage</span></span> that serves the same purpose as
|
|
|
|
|
|
Java<EFBFBD>s <span class=technicalitalic><span style='color:red'>import</span></span>
|
|
|
|
|
|
declaration. For example, we could import all of the classes in the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java.io </span></span>package and
|
|
|
|
|
|
access class <span class=technicalitalic><span style='color:red'>java.io.File</span></span>
|
|
|
|
|
|
using just the name <span class=technicalitalic><span style='color:red'>File</span></span>:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js>
|
|
|
|
|
|
importPackage(java.io)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> File</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[JavaClass java.io.File]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Here <span class=technicalitalic><span style='color:red'>importPackage(java.io)</span></span>
|
|
|
|
|
|
makes all the classes in the <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>java.io</span></span> package<67> (such as <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>File</span></span>) available at
|
|
|
|
|
|
the top level. It<49>s equivalent in effect to the Java declaration <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>import java.io.*;</span></span>.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>It<EFBFBD>s important to note that Java imports <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java.lang.*</span></span>
|
|
|
|
|
|
implicitly, while Rhino does not. The reason is that JavaScript has its own
|
|
|
|
|
|
top-level objects <span class=technicalitalic><span style='color:red'>Boolean</span></span>,
|
|
|
|
|
|
<span class=technicalitalic><span style='color:red'>Math</span></span>, <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>Number</span></span>, <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>Object</span></span>, and <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>String</span></span> that are
|
|
|
|
|
|
different from the classes by those names defined in the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java.lang</span></span> package.
|
|
|
|
|
|
Because of this conflict, it<69>s a good idea not to use <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>importPackage</span></span> on
|
|
|
|
|
|
the <span class=technicalitalic><span style='color:red'>java.lang</span></span>
|
|
|
|
|
|
package. </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>One thing to be careful of is Rhino<6E>s handling of errors in
|
|
|
|
|
|
specifying Java package or class names. If <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>java.MyClass</span></span> is accessed, Rhino attempts to
|
|
|
|
|
|
load a class named <span class=technicalitalic><span style='color:red'>java.MyClass</span></span>.
|
|
|
|
|
|
If that load fails, it assumes that <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>java.MyClass</span></span> is a package name, and no error is
|
2003-04-24 13:14:00 +00:00
|
|
|
|
reported:</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> java.MyClass</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[JavaPackage
|
|
|
|
|
|
java.MyClass]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>Only if you attempt to use this object as a class will an
|
2003-04-24 13:14:00 +00:00
|
|
|
|
error be reported.</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<h1>Working with Java objects</h1>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Now that we can access Java classes, the next logical step
|
|
|
|
|
|
is to create an object. This works just as in Java, with the use of the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>new</span></span> operator:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> new java.util.Date()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>Thu Jan 24 16:18:17 EST 2002</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>If we store the new object in a JavaScript variable, we can
|
|
|
|
|
|
then call methods on it:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> f = new
|
|
|
|
|
|
java.io.File("test.txt")</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>test.txt</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> f.exists()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>true</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> f.getName()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>test.txt</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Static methods and fields can be accessed from the class
|
|
|
|
|
|
object itself:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> java.lang.Math.PI</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>3.141592653589793</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js>
|
|
|
|
|
|
java.lang.Math.cos(0)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>1</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>In JavaScript, unlike Java, the method by itself is an
|
2003-04-24 13:14:00 +00:00
|
|
|
|
object and can be evaluated as well as being called. If we just view the method
|
|
|
|
|
|
object by itself we can see the various overloaded forms of the method:</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> f.listFiles</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>function listFiles() {/*</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>java.io.File[]
|
|
|
|
|
|
listFiles()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>java.io.File[]
|
|
|
|
|
|
listFiles(java.io.FilenameFilter)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>java.io.File[]
|
|
|
|
|
|
listFiles(java.io.FileFilter)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>*/}</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>This output shows that the <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>File</span></span> class defines three overloaded methods <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>listFiles</span></span>: one that
|
|
|
|
|
|
takes no arguments, another with a <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>FilenameFilter</span></span> argument, and a third with a <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>FileFilter</span></span>
|
|
|
|
|
|
argument. All the methods return an array of <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>File</span></span> objects. Being able to view the parameters
|
|
|
|
|
|
and return type of Java methods is particularly useful in exploratory
|
|
|
|
|
|
programming where we might be investigating a method and are unsure of the
|
|
|
|
|
|
parameter or return types. </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Another useful feature for exploratory programming is the
|
|
|
|
|
|
ability to see all the methods and fields defined for an object. Using the
|
|
|
|
|
|
JavaScript <span class=technicalitalic><span style='color:red'>for..in</span></span>
|
|
|
|
|
|
construct, we can print out all these values:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> for (i in f) {
|
|
|
|
|
|
print(i) }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>exists</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>parentFile</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>mkdir</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>toString</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>wait</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><span class=replaceable><span
|
|
|
|
|
|
style='color:red'>[44 others]</span></span></p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Note that not only the methods of the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>File</span></span> class are
|
|
|
|
|
|
listed, but also the methods inherited from the base class <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java.lang.Object</span></span>
|
|
|
|
|
|
(like <span class=technicalitalic><span style='color:red'>wait</span></span>).
|
|
|
|
|
|
This makes it easier to work with objects in deeply nested inheritance
|
|
|
|
|
|
hierarchies since you can see all the methods that are available for that
|
2003-04-24 13:14:00 +00:00
|
|
|
|
object.</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>Rhino provides another convenience by allowing properties of
|
|
|
|
|
|
JavaBeans to be accessed directly by their property names. A JavaBean property <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>foo</span></span> is defined by
|
|
|
|
|
|
the methods <span class=technicalitalic><span style='color:red'>getFoo</span></span>
|
|
|
|
|
|
and <span class=technicalitalic><span style='color:red'>setFoo</span></span>.
|
|
|
|
|
|
Additionally, a boolean property of the same name can be defined by an <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>isFoo</span></span> method.<a
|
|
|
|
|
|
href="#_ftn2" name="_ftnref2" title=""><span class=MsoFootnoteReference><span
|
|
|
|
|
|
class=MsoFootnoteReference><span style='font-size:10.0pt;font-family:Times;
|
|
|
|
|
|
color:black'>[2]</span></span></span></a> For example, the following code
|
|
|
|
|
|
actually calls the <span class=technicalitalic><span style='color:red'>File</span></span>
|
|
|
|
|
|
object<EFBFBD>s <span class=technicalitalic><span style='color:red'>getName</span></span>
|
|
|
|
|
|
and <span class=technicalitalic><span style='color:red'>isDirectory</span></span>
|
|
|
|
|
|
methods.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> f.name</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>test.txt</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> f.directory</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>false</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<h1>Calling overloaded methods</h1>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>The process of choosing a method to call based upon the
|
|
|
|
|
|
types of the arguments is called <span class=emphasis><span style='color:red'>overload
|
|
|
|
|
|
resolution</span></span>. In Java, overload resolution is performed at compile
|
|
|
|
|
|
time, while in Rhino it occurs at runtime. This difference is inevitable given
|
|
|
|
|
|
JavaScript<EFBFBD>s use of dynamic typing as was discussed in Chapter 2: since the
|
|
|
|
|
|
type of a variable is not known until runtime, only then can overload
|
2003-04-24 13:14:00 +00:00
|
|
|
|
resolution occur.</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>As an example, consider the following Java class that
|
|
|
|
|
|
defines a number of overloaded methods and calls them.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>public class Overload {</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> public String
|
|
|
|
|
|
f(Object o) { return "f(Object)"; }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> public String
|
|
|
|
|
|
f(String s) { return "f(String)"; }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> public String f(int
|
|
|
|
|
|
i)<29><><EFBFBD> { return "f(int)"; }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> public String
|
|
|
|
|
|
g(String s, int i) { </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> return
|
|
|
|
|
|
"g(String,int)"; </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> public String g(int
|
|
|
|
|
|
i, String s) { </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> return
|
|
|
|
|
|
"g(int,String)"; </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> public static void
|
|
|
|
|
|
main(String[] args) {</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Overload o = new
|
|
|
|
|
|
Overload();</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Object[] a = new
|
|
|
|
|
|
Object[] { new Integer(3), "hi", Overload.class };</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> for (int i=0; i
|
|
|
|
|
|
< a.length; i++)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
|
|
|
|
|
|
System.out.println(o.f(a[i]));</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>}</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>When we compile and execute the program, it produces the
|
|
|
|
|
|
output</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>f(Object)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>f(Object)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>f(Object)</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>However, if we write a similar script </p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>var o = new
|
|
|
|
|
|
Packages.Overload()</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>var a = [ 3,
|
|
|
|
|
|
"hi", Packages.Overload ];</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>for (var i=0; i <
|
|
|
|
|
|
a.length; i++) </p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'><EFBFBD><EFBFBD><EFBFBD> print(o.f(a[i]));</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>and execute it, we get the output</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>f(int)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>f(String)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>f(Object)</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Because Rhino selects an overloaded method at runtime, it
|
|
|
|
|
|
calls the more specific type that matches the argument. Meanwhile Java selects
|
|
|
|
|
|
the overloaded method purely on the type of the argument at compile time. </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Although this has the benefit of selecting a method that may
|
|
|
|
|
|
be a better match for each call, it does have an impact on performance since
|
|
|
|
|
|
more work is done at each call. In practice this performance cost hasn<73>t been
|
|
|
|
|
|
noticeable in real applications.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Because overload resolution occurs at runtime, it can fail
|
|
|
|
|
|
at runtime. For example, if we call <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>Overload</span></span><EFBFBD>s method <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>g</span></span> with two integers we get an error because
|
|
|
|
|
|
neither form of the method is closer to the argument types than the other:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> o.g(3,4)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js:
|
|
|
|
|
|
"<stdin>", line 2: The choice of Java method Overload.g
|
|
|
|
|
|
matching JavaScript argument types (number,number) is ambiguous; candidate
|
|
|
|
|
|
methods are: class java.lang.String g(java.lang.String,int), class
|
|
|
|
|
|
java.lang.String g(int,java.lang.String)</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>A more precise definition of overloading semantics can be
|
|
|
|
|
|
found at <span class=onlineitem><span style='color:red'><a
|
|
|
|
|
|
href="http://www.mozilla.org/js/liveconnect/lc3_method_overloading.html">http://www.mozilla.org/js/liveconnect/lc3_method_overloading.html</a></span></span>.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<h1>Implementing Java interfaces</h1>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Now that we can access Java classes, create Java objects,
|
|
|
|
|
|
and access fields, methods, and properties of those objects, we have a great
|
|
|
|
|
|
deal of power at our fingertips. However, there are a few instances where that
|
|
|
|
|
|
is not enough: many APIs in Java work by providing interfaces that clients must
|
|
|
|
|
|
implement. One example of this is the <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>Thread</span></span> class: its constructor takes a <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>Runnable</span></span> that
|
|
|
|
|
|
contains a single method <span class=technicalitalic><span style='color:red'>run</span></span>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
that will be called when the new thread is started. </p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>To address this need, Rhino provides the ability to create
|
|
|
|
|
|
new Java objects that implement interfaces. First we must define a JavaScript
|
|
|
|
|
|
object with function properties whose names match the methods required by the
|
|
|
|
|
|
Java interface. To implement a <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>Runnable</span></span>, we need only define a single method <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>run</span></span> with no
|
|
|
|
|
|
parameters. If you remember from Chapter 3, it is possible to define a
|
|
|
|
|
|
JavaScript object with the <span class=technicalitalic><span style='color:red'>{
|
|
|
|
|
|
</span></span><span class=replaceable><span style='color:red'>propertyName</span></span><span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>: </span></span><span
|
|
|
|
|
|
class=replaceable><span style='color:red'>value</span></span><span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'> <20> }</span></span> notation. We
|
|
|
|
|
|
can use that syntax here in combination with a function expression to define a
|
|
|
|
|
|
JavaScript object with a <span class=technicalitalic><span style='color:red'>run</span></span>
|
|
|
|
|
|
method:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> obj = { run:
|
|
|
|
|
|
function () { print("\nrunning"); } }</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[object Object]</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> obj.run()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'> </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>running</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Now we can create an object implementing the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>Runnable</span></span> interface
|
|
|
|
|
|
by <20>constructing<6E> a <span class=technicalitalic><span style='color:red'>Runnable</span></span>:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> r = new
|
|
|
|
|
|
java.lang.Runnable(obj);</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[object JavaObject]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>In Java it is not possible to use the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>new</span></span> operator on an
|
|
|
|
|
|
interface because there is no implementation available. Here Rhino gets the
|
|
|
|
|
|
implementation from the JavaScript object <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>obj</span></span>. Now that we have an object implementing <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>Runnable</span></span>, we can
|
|
|
|
|
|
create a <span class=technicalitalic><span style='color:red'>Thread</span></span>
|
|
|
|
|
|
and run it. The function we defined for <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>run </span></span>will be called on a new thread.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> t = new
|
|
|
|
|
|
java.lang.Thread(r)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>Thread[Thread-2,5,main]</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> t.start()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js></p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>running</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>The final <span class=literal><span style='color:red'>js</span></span>
|
|
|
|
|
|
prompt and the output from the new thread may appear in either order, depending
|
|
|
|
|
|
on thread scheduling. Rhino also allows the JavaScript object literal and the
|
|
|
|
|
|
interface creation expression to be combined for a more convenient syntax:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> r = new
|
|
|
|
|
|
java.lang.Runnable(){run: function() { print("\nrunning"); } };</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[object JavaObject]</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Behind the scenes, Rhino generates the bytecode for a new
|
|
|
|
|
|
Java class that implements <span class=technicalitalic><span style='color:red'>Runnable</span></span>
|
|
|
|
|
|
and forwards all calls to its <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>run</span></span> method over to an associated JavaScript
|
|
|
|
|
|
object. The object that implements this class is called a <span class=emphasis><span
|
|
|
|
|
|
style='color:red'>Java adapter</span></span>. Because the forwarding to
|
|
|
|
|
|
JavaScript occurs at runtime, it is possible to delay defining the methods
|
|
|
|
|
|
implementing an interface until they are called. While omitting a required
|
|
|
|
|
|
method is bad practice for programming in the large, it<69>s useful for small
|
|
|
|
|
|
scripts and for exploratory programming.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<h1>The <span class=technicalitalic>JavaAdapter</span> constructor</h1>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>In the previous section we created Java adapters using the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>new</span></span> operator with
|
|
|
|
|
|
Java interfaces. This approach has its limitations: it<69>s not possible to
|
|
|
|
|
|
implement multiple interfaces, nor can we extend non-abstract classes. For
|
|
|
|
|
|
these reasons there is a <span class=technicalitalic><span style='color:red'>JavaAdapter</span></span>
|
|
|
|
|
|
constructor. </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>The syntax of the <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>JavaAdapter</span></span> constructor is</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>new JavaAdapter(<span
|
|
|
|
|
|
class=replaceable><span style='color:red'>javaIntfOrClass</span></span>, <span
|
|
|
|
|
|
class=replaceable><span style='color:red'>[javaIntfOrClass</span></span>,<span
|
|
|
|
|
|
class=replaceable><span style='color:red'> ...]</span></span> <span
|
|
|
|
|
|
class=replaceable><span style='color:red'>javascriptObject</span></span>)</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Each <span class=replaceable><span style='color:red'>javaIntfOrClass</span></span>
|
|
|
|
|
|
is an interface to implement or a class to extend. (Only one <span
|
|
|
|
|
|
class=replaceable><span style='color:red'>javaIntfOrClass</span></span> may be
|
|
|
|
|
|
a class, of course.) The <span class=replaceable><span style='color:red'>javascriptObject</span></span>
|
|
|
|
|
|
is the JavaScript object containing the methods that will be called from the
|
|
|
|
|
|
Java adapter. </p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>In practice there<72>s little need to call the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>JavaAdapter</span></span>
|
|
|
|
|
|
constructor directly. Most of the time the previous syntaxes using the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>new</span></span> operator will
|
|
|
|
|
|
be sufficient.</p>
|
|
|
|
|
|
|
|
|
|
|
|
<h1>Creating Java arrays</h1>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Rhino provides no special syntax for creating Java arrays.
|
|
|
|
|
|
You must use the <span class=technicalitalic><span style='color:red'>java.lang.reflect.Array</span></span>
|
|
|
|
|
|
class for this purpose. To create an array of five Java strings you would make
|
|
|
|
|
|
the following call:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> a =
|
|
|
|
|
|
java.lang.reflect.Array.newInstance(java.lang.String, 5);</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[Ljava.lang.String;@7ffe01</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>To create an array of primitive types, we must use the
|
|
|
|
|
|
special TYPE field defined in the associated object class in the <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java.lang</span></span> package.
|
|
|
|
|
|
For example, to create an array of bytes, we must use the special field <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>java.lang.Byte.TYPE</span></span>:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> a =
|
|
|
|
|
|
java.lang.reflect.Array.newInstance(java.lang.Character.TYPE, 2);</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>[C@7a84e4</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>The resulting value can then be used anywhere a Java array
|
2003-04-24 13:14:00 +00:00
|
|
|
|
of that type is allowed.</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> a[0] = 104</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>104</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> a[1] = 105</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>105</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> new
|
|
|
|
|
|
java.lang.String(a)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>hi</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<h1>Java strings and JavaScript strings</h1>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>It<EFBFBD>s important to keep in mind that Java strings and
|
|
|
|
|
|
JavaScript strings are <span class=emphasis><span style='color:red'>not</span></span>
|
|
|
|
|
|
the same. Java strings are instances of the type <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>java.lang.String</span></span> and have all the methods
|
|
|
|
|
|
defined by that class. JavaScript strings have methods defined by <span
|
|
|
|
|
|
class=technicalitalic><span style='color:red'>String.prototype</span></span>.
|
|
|
|
|
|
The most common stumbling block is <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>length</span></span>, which is a method of Java strings and a
|
|
|
|
|
|
dynamic property of JavaScript strings:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> javaString = new
|
|
|
|
|
|
java.lang.String("Java")</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>Java</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> jsString =
|
|
|
|
|
|
"JavaScript"</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>JavaScript</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js>
|
|
|
|
|
|
javaString.length()</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>4</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> jsString.length</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>10</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoNormal>Rhino provides some help in reducing the differences between
|
|
|
|
|
|
the two types. First, you can pass a JavaScript string to a Java method that
|
|
|
|
|
|
requires a Java string and Rhino will perform the conversion. We actually saw
|
|
|
|
|
|
this feature in action on the call to the <span class=technicalitalic><span
|
|
|
|
|
|
style='color:red'>java.lang.String</span></span> constructor in the preceding
|
2003-04-24 13:14:00 +00:00
|
|
|
|
example.</p>
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoNormal>Rhino also makes the JavaScript methods available to Java
|
|
|
|
|
|
strings if the java.lang.String class doesn<73>t already define them. For example:</p>
|
|
|
|
|
|
|
|
|
|
|
|
<div style='border:none;border-left:solid windowtext 1.0pt;padding:0in 0in 0in 2.0pt;
|
|
|
|
|
|
margin-left:.25in;margin-right:-67.7pt'>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>js> javaString.match(/a.*/)</p>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=Code style='margin:0in;margin-bottom:.0001pt'>ava</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div><br clear=all>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
|
|
|
|
|
<hr align=left size=1 width="33%">
|
|
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<div id=ftn1>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
2005-09-19 11:37:42 +00:00
|
|
|
|
<p class=MsoFootnoteText style='margin-top:3.0pt;margin-right:67.7pt;
|
|
|
|
|
|
margin-bottom:3.0pt;margin-left:-.25in'><a href="#_ftnref1" name="_ftn1"
|
|
|
|
|
|
title=""><span class=MsoFootnoteReference><span class=MsoFootnoteReference><span
|
|
|
|
|
|
style='font-size:9.0pt;font-family:Times;color:black'>[1]</span></span></span></a>
|
|
|
|
|
|
The ability to call Java from JavaScript was first implemented as part of a
|
|
|
|
|
|
Netscape browser technology called <span class=emphasis><span style='color:
|
|
|
|
|
|
red'>LiveConnect</span></span>. However, since that technology also encompassed
|
|
|
|
|
|
communication with browser plugins, and since the way of calling JavaScript
|
|
|
|
|
|
from Java in Rhino is entirely different, that term won<6F>t be used in this paper.</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
<div id=ftn2>
|
|
|
|
|
|
|
|
|
|
|
|
<p class=MsoFootnoteText style='margin-top:3.0pt;margin-right:67.7pt;
|
|
|
|
|
|
margin-bottom:3.0pt;margin-left:-.25in'><a href="#_ftnref2" name="_ftn2"
|
|
|
|
|
|
title=""><span class=MsoFootnoteReference><span class=MsoFootnoteReference><span
|
|
|
|
|
|
style='font-size:9.0pt;font-family:Times;color:black'>[2]</span></span></span></a>
|
|
|
|
|
|
For more information on JavaBeans, see <span class=emphasis><span
|
|
|
|
|
|
style='color:red'>Developing Java Beans</span></span> by Robert Englander.</p>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
2003-04-24 13:14:00 +00:00
|
|
|
|
|
|
|
|
|
|
</body>
|
2005-09-19 11:37:42 +00:00
|
|
|
|
|
2003-04-24 13:14:00 +00:00
|
|
|
|
</html>
|
