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Setting the CLASSPATH Environment Variable on a Windows Platform
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<META NAME="AUTHOR" CONTENT="Dana Nourie">
<META NAME="DESCRIPTION" CONTENT="Setting the CLASSPATH
Environment Variable on a Windows Platform">
<META NAME="KEYWORDS" CONTENT="classpath, windows environment">
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<H4 ALIGN="RIGHT">Setting the <code>CLASSPATH</code> Environment Variable<BR>
on the Windows Platform</H4>
<P>
To develop and test applications written in the Java
<FONT SIZE="-2"><SUP>TM</SUP></FONT> programming language using the Windows environment, you must set a path and <code>CLASSPATH</code> so programs can locate necessary classes and <code>.jar</code> files.
<P>
Open the <CODE>autoexec.bat</CODE> file (located in your root (\) directory) in a text editor, or type <CODE>sysedit</CODE> in Run from the Start button.
<P>
If you're <B>only</B> going to be using the J2SE, then the following line is all that's needed:
<P>
<CODE>
PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;C:\JDK\BIN;
</CODE>
<P>
The example above assumes <B>C </B>is the drive where the development kit has been installed and that the directory name is JDK.
<P>
If you may be using other development tools in addition to J2SE, then follow the instuctrions below. Also note how other tools, such as the Java<FONT SIZE="-2"><SUP>TM</SUP></FONT> Servlet Web Development Kit and the MySQL database driver can be included in the <code>CLASSPATH</code>. These may or may not apply to your needs.
<P>
Enter the following to set a <code>CLASSPATH</code>:
<P>
<pre>
SET PATH=%PATH%;%JAVAHOME%\BIN
PATH=C:\WINDOWS;C:\WINDOWS\COMMAND;C:\JDK\BIN;
SET CLASSPATH=.;C:\jdk\lib\tools.jar;
C:\jswdk\lib\servlet.jar;
C:\mm.mysql.jdbc-1.2b;%CLASSPATH%
</pre>
<P>
<B>Note:</B> To ensure programs locate the complier and APIs, keep the <CODE>SET CLASSPATH</code> command on one line.
<P>
Save the file and close the editor. To force these settings to take place, simply restart your computer, or open an MS-DOS window and type <CODE>autoexec.bat</CODE>.
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