In this article, we will learn Java Client,This free Java tutorial for complete beginners will help you learn Java from scratch.

Java Client

Java Server

On the Java client side, we will pass the two most important information to the Socket class. This information connects the Java Client Socket to the Java Server Socket.

IP Address of Server and,
Port Number

In the Java client, we create a new thread when each new message is received from the Java Server Client.

Java

import java.io.*; 
import java.net.*; 
import java.util.Scanner; 
  
public class Client { 
    private static final String SERVER_ADDRESS = "localhost"; 
    private static final int SERVER_PORT = 12345; 
  
    public static void main(String[] args) { 
        try { 
            Socket socket = new Socket(SERVER_ADDRESS, SERVER_PORT); 
            System.out.println("Connected to the chat server!"); 
  
            // Setting up input and output streams 
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true); 
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream())); 
  
            // Start a thread to handle incoming messages 
            new Thread(() -> { 
                try { 
                    String serverResponse; 
                    while ((serverResponse = in.readLine()) != null) { 
                        System.out.println(serverResponse); 
                    } 
                } catch (IOException e) { 
                    e.printStackTrace(); 
                } 
            }).start(); 
  
            // Read messages from the console and send to the server 
            Scanner scanner = new Scanner(System.in); 
            String userInput; 
            while (true) { 
                userInput = scanner.nextLine(); 
                out.println(userInput); 
            } 
             
        } catch (IOException e) { 
            e.printStackTrace(); 
        } 
    } 
} 

How to Implement a Simple Chat Application Using Sockets in Java?

In this article, we will create a simple chat application using Java socket programming. Before we are going to discuss our topic, we must know Socket in Java. Java Socket connects two different JREs (Java Runtime Environment).