TCPClient.java

import java.io.*; 
import java.net.*; 
class TCPClient { 

    public static void main(String argv[]) throws Exception 
    { 
        String sentence; 
        String modifiedSentence; 
		Integer i=1;
		while(true)
		{
			Socket clientSocket = new Socket("localhost", 6789); 

	        DataOutputStream outToServer = 
	          new DataOutputStream(clientSocket.getOutputStream()); 


	        BufferedReader inFromServer = 
	          new BufferedReader(new
	          InputStreamReader(clientSocket.getInputStream()));
	        outToServer.writeBytes(i.toString() + '\n'); 

	        modifiedSentence = inFromServer.readLine(); 

	        System.out.println("# "+ i.toString() +" -> FROM SERVER: " + modifiedSentence); 

	        clientSocket.close(); 
			i++;
        }          
    } 
}