How do I ping a host?

Since Java 1.5 (Tiger) the class introduces isReachable() method that can be used to ping or check if the address specified by the InetAddress is reachable.



public class PingExample {
    public static void main(String[] args) {
        try {
            InetAddress address = InetAddress.getByName("");

            // Try to reach the specified address within the timeout
            // period. If during this period the address cannot be
            // reach then the method returns false.
            boolean reachable = address.isReachable(10000);

            System.out.println("Is host reachable? " + reachable);
        } catch (Exception e) {