How to Execute an Executable and Pass Parameters from Java?

Call an Executable and Pass Parameters from Java

When working with external processes from Java, it's often necessary to call an executable and pass it specific parameters. This can be achieved through the ProcessBuilder class, as shown in the following code:

<code class="java">Process process = new ProcessBuilder("C:\PathToExe\MyExe.exe").start();

// Process output and error streams
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);
}</code>

Passing Parameters

To pass parameters to the executable, simply provide them as arguments in the ProcessBuilder constructor:

<code class="java">Process process = new ProcessBuilder("C:\PathToExe\MyExe.exe", "param1", "param2").start();</code>

Handling Paths with Spaces

If the path to the executable contains spaces, you can enclose it in double quotes within the ProcessBuilder constructor:

<code class="java">Process process = new ProcessBuilder("\"C:\User\My applications\MyExe.exe\"").start();</code>

By following these modifications, you should be able to successfully call an executable and pass parameters from Java, even when spaces are present in the path to the executable.

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