How to Implement a Distributed Caching System Using Java Networking?

// Java program to  implement a Distributed Caching System
import java.net.*;
import java.io.*;

public class CacheServer 
{
    public static void main(String[] args) 
    {
        try (ServerSocket serverSocket = new ServerSocket(5000)) 
        {
            System.out.println("Cache server running...");
            while (true) {
                Socket socket = serverSocket.accept();
                new CacheServerThread(socket).start();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

class CacheServerThread extends Thread 
{
    private Socket socket;

    public CacheServerThread(Socket socket) 
    {
        this.socket = socket;
    }

    public void run() {
        try (
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true)
        ) {
            String inputLine;
            while ((inputLine = in.readLine()) != null) {
                String[] numbers = inputLine.split(",");
                if (numbers.length == 2) {
                    int num1 = Integer.parseInt(numbers[0]);
                    int num2 = Integer.parseInt(numbers[1]);
                    int sum = num1 + num2;
                    out.println(sum);
                } else 
                {
                    out.println("Invalid input. Please provide two numbers separated by comma.");
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import java.net.*;
import java.io.*;

public class CacheClient {
    public static void main(String[] args) 
    {
        try (
            Socket socket = new Socket("localhost", 5000);
            BufferedReader userInput = new BufferedReader(new InputStreamReader(System.in));
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true)
        ) {
            System.out.println("Enter two numbers separated by comma:");
            String input = userInput.readLine();
            out.println(input);
            String response = in.readLine();
            System.out.println("Sum received from server: " + response);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}