GUI functions work when running from IDE, but not when running jar?

You should to set---> 1) right mouse click on Project, last option is Properties 2) in the Run select from drop-down proper Main-class 3) maybe this thread will help you.

In the settings of your IDE, check which classpath is used, which JDK, which settings. Run the jar from the commandline to see errormessages. Your jar may also lack a Manifest file which could make your jar clickable to start the application.

Open a command prompt, and use java -jar youJarFile. Jar Unhandled Exceptions will display in the CLI/terminal.

If you have written all code yourself, you can make use of assertions or the Logger API. docs.oracle.com/javase/1.4.2/docs/api/ja... docs.oracle.com/javase/1.4.2/docs/guide/... this shoul aid in getting to the root cause...

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.