java check if jar was launched from command line or explorer

Question

Is there a way to check if the jar was launched from command line via 'java -jar test.jar' or via double click in explorer? I want it to start in nogui mode if it was executed from the command prompt.

Answer 1

No. There is no way to determine how it was launched. You could pass a command line argument like

java -cp . my.package.Example -nogui

And then parse the argument in your main() method to control the "command line" or "gui" mode.