java - How to check if process is running - 


processbuilder pb = new processbuilder("notepad"); process p = pb.run(); system.out.println("notepad closed")

the code above run fine , open notepad. print statement not print until manually close notepad window. because java waits until process terminated. there anyway can open process , check if window has loaded?

the processbuilder.start() method not halt program execution.

you can use this:

processbuilder pb = new processbuilder("notepad"); process p = pb.start(); system.out.println("this print right after notepad launched.")

you can use process object read output program, kill program, or halt program execution until finished.

here reference page: process


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