Create Server Socket

This is an example of how to create a ServerSocket. A server socket waits for requests to come in over the network. It performs some operation based on that request, and then possibly returns a result to the requester. Creating a server socket implies that you should:

  • Create a ServerSocket, bound to a specified port.
  • Use accept() API method to listen for a connection to be made to this socket and accept it. The method blocks until a connection is made.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.core;


public class CreateServerSocket {
	public static void main(String[] args) {
		try {
			int port = 12345;
		    ServerSocket serverSocket = new ServerSocket(port);

		    // Wait for connection from client.
		    Socket socket = serverSocket.accept();
		    System.out.println("Client connected at: " + socket);
		catch (UnknownHostException e) {
			System.out.println("Host not found: " + e.getMessage());
		catch (IOException ioe) {
			System.out.println("I/O Error " + ioe.getMessage());



Client connected at: Socket[addr=/0:0:0:0:0:0:0:1,port=60102,localport=12345]

This was an example of how to create a ServerSocket in Java.

Ilias Tsagklis

Ilias is a software developer turned online entrepreneur. He is co-founder and Executive Editor at Java Code Geeks.
Notify of

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Inline Feedbacks
View all comments
Back to top button