Java program to ping an IP address

PingIP.java

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

public class PingIP {

  public static void runSystemCommand(String command) {

		try {
			Process p = Runtime.getRuntime().exec(command);
			BufferedReader inputStream = new BufferedReader(
					new InputStreamReader(p.getInputStream()));

			String s = "";
			// reading output stream of the command
			while ((s = inputStream.readLine()) != null) {
				System.out.println(s);
			}

		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static void main(String[] args) {
		
		String ip = "google.com";
		runSystemCommand("ping " + ip);

	
	}
}

how to use that code in java jframe?

Exact same method, you'd just need to handle an event that triggers it and obviously the response. Let me know if you need more info!

This works fine on Mac OS, however is there an additional command that needs to be called for Windows systems? Seems to fail on Windows.

I would do it in a different way:

public static void isReachable(String address) {
        try {
            InetAddress inetAddress = InetAddress.getByName(address);
            boolean isReachable = inetAddress.isReachable(5000);
            System.out.printf("Is the address [%s] reachable? -%s\n", address, isReachable ? "Yes" : "No");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

This is ICMP way. Unfortunately, it is not always available.