Please help me - project in Java...

[Nadiatjie]

I am still in school and studying java, I am kind of new to it(I have been working in Delphi for 2 years and only recently started working with java...) as well and really need help with a project. For my last term I need to write a program that allows the user to play the game mastermind.
I have a few problems that I can't seem to figure out...

firstly I have an error and I don't know what it means:
java.lang.NoClassDefFoundError: toets
Caused by: java.lang.ClassNotFoundException: toets

secondly I don't know how to save data on the computer after it has been entered, say if I used a JOptionPane and this person entered their name and played a game and won, how and where can I save this information so that it will still be found the next time they log on?

Please Help me !!!

[r035198x]

NoClassDefFound means that that named .class file could not be found in the class path that was used to run that program. Make sure that that .class file exists first (e.g make sure that .java file for it is successfully compiled first) or if the .class exists then make sure you include its path in the classpath argument of your program.

For the second question, data can be stored in various ways. The most common approaches are files (.txt , .dat, .xml, e.t.c) and databases.

[Nadiatjie]

Thank you very much for replying.

Where exactly is the classpath argument of the program?

[r035198x]

Thank you very much for replying.

Where exactly is the classpath argument of the program?

What you always wanted to know about PATH and classpath

[Nadiatjie]

Thank you very very much, you are saving my life!