java - Finding out when the close button in notepad is clicked -

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i need open notepad @ runtime. of processbuilder.

processbuilder pb = new processbuilder("notepad.exe" , "file.txt"); pb.start();

after notepad opens, type in stuff , when click close button. want java program recognize , continue rest of program. know 

thread.sleep(*some long value*)

but think program more efficient if recognizes when notepad.exe closes.

do :-

processbuilder pb = new processbuilder("notepad.exe" , "file.txt"); process pro = pb.start(); int val = pro.waitfor();

with process pro wait complete execution, val should 0 normal termination, according convention.

for getting file path:

this file.txt created @ current directory. in order current directory path, can use :-

file f = new file("."); string path = f.getcanonicalpath();


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