How to Use ProcessBuilder in Java

In this example, we will use ProcessBuilder to ping a website.

Source Code

package com.beginner.examples;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class ProcessBuilderExample {

    public static void main(String[] args) throws IOException, InterruptedException {

    	String line;
    	ProcessBuilder cmd = new ProcessBuilder();

        // run cmd on Windows
        cmd.command("cmd.exe", "/c", "ping -n 3 Yahoo.com");
        
        Process p = cmd.start();
        
        // process message
        BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
	    while ((line = reader.readLine()) != null) {
	        System.out.println(line);
	    }
	    
        //exit message
        int msg = p.waitFor();
        System.out.println("Exited with msg: " + msg);

    }

}

Output:

Pinging Yahoo.com [72.30.35.9] with 32 bytes of data:
Reply from 72.30.35.9: bytes=32 time=226ms TTL=47
Reply from 72.30.35.9: bytes=32 time=226ms TTL=47
Reply from 72.30.35.9: bytes=32 time=223ms TTL=47

Ping statistics for 72.30.35.9:
    Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 223ms, Maximum = 226ms, Average = 225ms

Exited with msg: 0

References

Imported packages in Java documentation: