Call an executable and pass parameters

Question

I'm figuring out a mechanism to call an exe from Java and passing in specific parameters. How can I do?

Process process = new ProcessBuilder("C:\\PathToExe\\MyExe.exe").start(); InputStream is = process.getInputStream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line;  System.out.printf("Output of running %s is:", Arrays.toString(args));  while ((line = br.readLine()) != null) {   System.out.println(line); } 

The previous code works. But I'm not able to pass parameters in. MyExe.exe accepts parameters. An other problem is when PathToExe has blank spaces. ProcessBuilder seems not working. For example:

C:\\User\\My applications\\MyExe.exe 

Thank you.

Answer 1

Pass your arguments in constructor itself.

Process process = new ProcessBuilder("C:\\PathToExe\\MyExe.exe","param1","param2").start(); 

Answer 2

You're on the right track. The two constructors accept arguments, or you can specify them post-construction with ProcessBuilder#command(java.util.List) and ProcessBuilder#command(String...).