Java Socket getInetAddress() method

The getInetAddress() method of Java Socket class returns the address to which the socket is connected. If the socket is being closed, this method will return the connected address after the socket is closed.

Syntax

Parameter

Return

The getInetAddress () method either returns the remote IP address to which the socket is connected or returns null if the socket is not connected.

Example 1

import java.io.IOException;
import java.net.*;
public class JavaSocketGetInetAddressExample1 {
    public static void main(String[] args) throws IOException {
      Socket socket = new Socket();
      InetAddress inetAddress=InetAddress.getByName(null);
      //the port should be greater or equal to 0, else it will throw an error
        int port=1085;
        //calling the constructor of the SocketAddress class
        SocketAddress socketAddress=new InetSocketAddress(inetAddress, port);
        //binding the  socket with the inetAddress and port number
        socket.bind(socketAddress);
        int timeout=10000;
        //connect() method connects this socket to the server with the given timeout value.
        socket.connect(socketAddress,timeout);
        //getInetAddress() method returns the Inet Address of this socket.
        System.out.println("Inet address: "+socket.getInetAddress());
        //getLocalPort() method returns the port number of the socket
        System.out.println("Port number: "+socket.getLocalPort());
    }
}

Test it Now

Output:

Inet address: localhost/127.0.0.1
Port number: 1085

Example 2

import java.io.IOException;
import java.net.*;
public class JavaSocketGetInetAddressExample2  {
    public static void main(String[] args) throws IOException {
      Socket socket = new Socket();
      InetAddress inetAddress=InetAddress.getByName(null);
      //the port should be greater or equal to 0, else it will throw an error
        int port=1085;
        //calling the constructor of the SocketAddress class
        SocketAddress socketAddress=new InetSocketAddress(inetAddress, port);
        //binding the  socket with the inetAddress and port number
        socket.bind(socketAddress);
        int timeout=10000;
        //closing the socket
        socket.close();
        //connect() method connects this socket to the server with the given timeout value.
        socket.connect(socketAddress,timeout);
        //getInetAddress() method returns the Inet Address of this socket.
        System.out.println("Inet address: "+socket.getInetAddress());
        //getLocalPort() method returns the port number of the socket
        System.out.println("Port number: "+socket.getLocalPort());
    }
}

Test it Now

Output:

Exception in thread "main" java.net.SocketException: Socket is closed
	at java.net.Socket.connect(Socket.java:566)
	at com.javaTpoint.JavaSocketGetInetAddressExample2.main(JavaSocketGetInetAddressExample2.java:20)

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