On Tue, 2002-11-12 at 04:37, anthony baldwin wrote: > Hey, > What the heck does this mean? I was trying to run a java hangman game. > > [root@localhost programs]# java -jar swingman.jar > Warning: -jar not understood. Ignoring. > Exception in thread "main" java.lang.NoClassDefFoundError: swingman.jar Anthony, The version of java that you are running does not understand the -jar option. What version are you running? Try java -v. Do you know the name of the class to run in the jar? A quick way to find out what class to run do the following: unzip -c ./swingman.jar manifest | grep Main-class (man unzip and man grep will help you understand what this is doing) You should get output like: Main-Class: mypackage.MyClass If so, you can do this: java -classpath ./swingman.jar mypackage.MyClass Hope this helps, -- Philip A. Chapman Application Development: Java, Visual Basic, VB for Applications, PostgreSQL, MySQL, MSSQL Linux, Windows 9x, Windows NT, Windows 2000, Windows XP
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