Java Applications in J#

• As we mentioned, J# can handle Java applications developed using the JDK 1.1.4
  • Some types of applications were not included originally, but now they are available.
  • They are described below :
    • Applets Equivalent
    • Swing applications

• Applets
  • The equivalent in J# are the J# Web Browser Controls (JSWBC)
  • Run under Internet Explorer 5 or higher
  • Currently only under Windows
  • JSWBC are compiled as Class Libraries
  • VS.NET 2003 can directly import Applet projects from Microsoft Visual J++ 6.0
  • TagConvert.exe: additional tool useful for converting the APPLET tag into the JSWBC equivalent:
    • Original:
      < APPLET style="LEFT: 0px; WIDTH: 361px; TOP: 0px; HEIGHT: 350px" height=350 width=361 code=AppletTest.class name=AppletTest>
           <PARAM NAME="foreground" VALUE="FFFFFF"> …
    • Converted:
      < object style="LEFT: 0px; WIDTH: 361px; TOP: 0px; HEIGHT: 350px" height=350 width=361 CLASSID=" clsid:a399591c-0fd0-41f8-9d25- bd76f632415f " ID="AppletTest" VJSCODEBASE="bin/Debug/AppletTest.dll#AppletTest " >
            <PARAM NAME="foreground" VALUE="FFFFFF"> …
• The latest version of JSWBC has scripting support
• A JSWBC has full access to the .NET framework
  • You can see an example below showing a Windows .NET Form after pressing the button:

• Swing Applications
• Supported by way of the Supplemental UI Library not included originally in J#
• Initially available only for the academic community where they were demanding this feature
• In Visual Studio .NET 2005 you can also develop commercial applications using this supplemental library
• Supports “ … much of the functionality described in the Java 2 JFC Swing specification. It also adds support for much of the functionality found in the JDK 1.2 java.util package
• You can see a limited version of the current Virtual Classroom compiled with J# with minor code modifications: