TCPServer.java

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

class TCPServer {   
	 public static void main(String argv[]) throws Exception {         
	System.out.println("Server On \n"); 
	String clientSentence;          
	 String capitalizedSentence;          
	 ServerSocket welcomeSocket = new ServerSocket(7777);
         while(true){             
		Socket connectionSocket = welcomeSocket.accept();
                BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
             DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());
             clientSentence = inFromClient.readLine(); 
             System.out.println("Received: " + clientSentence); 
            //capitalizedSentence = clientSentence.toUpperCase() + '\n';
            // outToClient.writeBytes(capitalizedSentence);          
		}
       } 
}