Like Dave said, javaw.exe doesn't spawn a command line prompt. java.exe does, but the command window will disappear as soon as the program has finished running, so you should usually put a readLine() statement at the end of your program so the user has the chance to see the output.
I have kept readLine() statement at the end of my program and also associated my jar file with java.exe but still when I double click the jar file It's just opening and closing in less than a second. When I type java -jar First.jar in command prompt its working fine (console is waitng for user to enter something).
What? Why? Where? When? Which?
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