Java ServerSocket getRemoteSocketAddress() Method

The getRemoteSocketAddress() method of ServerSocket class uses to return the address of the socket endpoint to which it connected. If it is not connected, then it returns null.

Syntax

Returns:

A SocketAddress representing the remote endpoint of this socket, or null if it is not connected yet.

Since:

1.4

Example 1

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;

public class ServerApp {
  public static void main(String[] args) throws Exception {
    String srvrnm = args[0];
    int port = Integer.parseInt(args[1]);
    try {
      System.out.println("Connecting to " + srvrnm + " on port " + port);
      Socket client = new Socket(srvrnm, port);
      // calling getRemoteSocketAddress method
      System.out.println("Just connected to client " + client.getRemoteSocketAddress());
      client.close();
    } 
     catch (IOException e) {
      e.printStackTrace();
    }
  }
}

Output:

Java ServerSocket getRemoteSocketAddress() Method

Example 2

ServerApplication:

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketTimeoutException;
import java.nio.channels.ServerSocketChannel;
public class Main extends Thread {
  private ServerSocket serverSocket;
  public Main () throws IOException {
    serverSocket = new ServerSocket(8008);
    serverSocket.setSoTimeout(10000);    
    ServerSocketChannel channel = serverSocket.getChannel();
  }
  public void run() {
    while (true) {
      try {
     System.out.println("Waiting for client on port " + serverSocket.getLocalPort() + "...");
        Socket client = serverSocket.accept();

        System.out.println("Just connected to " + client.getRemoteSocketAddress());
        client.close();
      } catch (Exception s) {
        System.out.println("Socket timed out!");
        break;
      } 
    }
  }
public static void main(String[] args) {
		    try {
		      Thread t = new Main ();
		      t.start();
		    } catch (IOException e) {
		      e.printStackTrace();
		    }
	}
}

ClientApplication

import java.io.IOException;
import java.io.PrintStream;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;

public class ClientApplication1 {
	public static void main(String arg[]) throws UnknownHostException,IOException
	{	
	String n,tmp;
	Scanner sc=new Scanner(System.in);
	Socket s=new Socket("127.0.0.1",8008);	
	}
}

Output: