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);

	
	}
}

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.