execute java button in a jar from command line

Question

I have a jar that I want just to get the output from that program. When we execute the jar, that will open a window and there are three button in that window. I need to click the second button, and after we click that button, it will open a new window and I need click another button there that open an file dialog, we need to choose a file and then click open. That is the program will produce the output. But, I want it to execute it without open the program jar interface, just use commandline like

java -cp test.jar click_button1 click_button2(file.txt)

so the user don't need to see the interface, the program just running on the backside.

Please advise and help. thank you.

Answer 1

Your question is difficult to understand.

But if you are looking for a way to send commands to the commandline from Java, you can use Runtime in Java:

http://docs.oracle.com/javase/6/docs/api/java/lang/Runtime.html#getRuntime%28%29

Runtime cmd = Runtime.getRuntime();
cmd.exec("java -cp test.jar click_button1 click_button2(file.txt)");