Java/Network Protocol/Ping

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java.net.InetAddress.isReachable(int) can be used to check if a server is reachable or not.

   <source lang="java">

import java.net.InetAddress; public class Main {

 public static void main(String[] argv) throws Exception {
   InetAddress address = InetAddress.getByName("web.mit.edu");
   System.out.println("Name: " + address.getHostName());
   System.out.println("Addr: " + address.getHostAddress());
   System.out.println("Reach: " + address.isReachable(3000));
 }

}

 </source>
   
  
 
  



Ping a host

   <source lang="java">


import java.net.InetAddress; public class Main {

 public static void main(String[] args) throws Exception {
   InetAddress address = InetAddress.getByName("17.16.15.14");
   boolean reachable = address.isReachable(10000);
   System.out.println("Is host reachable? " + reachable);
 }

}


 </source>