Synopsis The class path can be set using either the -classpath option when calling an SDK tool (the preferred method) or by setting the CLASSPATH environment variable. The -classpath option is preferred because you can set it individually for each application without affecting other applications and without other applications modifying its value. C:> sdkTool -classpath classpath1 ; classpath2 ... -or- C:> set CLASSPATH= classpath1 ; classpath2 ... where: sdkTool A command-line tool, such as java , javac , or javadoc . For a listing, see SDK Tools . classpath1 ; classpath2 Class paths to the .jar, .zip or .class files. Each classpath should end with a filename or directory depending on what you are setting the class path to: For a .jar or .zip file that contains .class files, the class path ends with the name of the .zip or .jar file. For .class files in an unnamed package, the class pa...