Thread: what's wrong with my code ? " server client socket

hi ..
This is my code with no errors .. but I didn't know why the output doesn't show up
the program should take a message from user as a string then send it to the server , the server will count the number of digits and Characters then send the numbers as an object to the client and print it ..

import java.io.*;
import java.net.*;
import java.util.Scanner;
 
public class TcpClient {
 
        public static void main(String argv[]) throws Exception{ 
 
  String clientSentence;
 
BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
Socket clintSocket = new Socket("localhost",6780); 
DataOutputStream outToServer =new DataOutputStream(clintSocket.getOutputStream());
clientSentence = inFromUser.readLine(); 
outToServer.writeBytes(clientSentence + '\n'); 
InputStream inputStream = clintSocket.getInputStream();
ObjectInputStream objectInput = new ObjectInputStream(inputStream);
MessageImp1 m = (MessageImp1) objectInput.readObject();
  m.setcounts(clientSentence);  
 
   System.out.println(" The nubmer of Characters is : "+m.getCharacterCount()+ "\n" +" The nubmer of Digits is : "+m.getDigitCount());
   clintSocket.close();
 
}
}

import java.io.*;
import java.net.*;
import java.util.Scanner;
 
public class TCPServer {
 
    public static void main(String argv[]) throws Exception{ 
          String clientSentence;
 
 ServerSocket welcomeSocket = new ServerSocket(6780); 
 while(true) {
 Socket connectionSocket = welcomeSocket.accept(); 
 
BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream())); 
clientSentence = inFromClient.readLine(); 
 
MessageImp1 m1=new MessageImp1();
m1.setcounts(clientSentence);
ObjectOutputStream ooStream = new ObjectOutputStream(connectionSocket.getOutputStream());
 
ooStream.writeObject(m1);
ooStream.close();
 
 
}
    }}

 
 
public interface Message {
 
    public void setcounts(String str);
    public  int getCharacterCount();
    public  int getDigitCount();
 
 
}

import java.io.Serializable;
 
 
public class MessageImp1 implements Message,Serializable{
 
int lettersCount=0;
int digitCount=0;
 
 
 
 
public void setcounts(String str) {
      for(int i=0;i<str.length();i++){
    if(Character.isLetter(str.charAt(i))){
    lettersCount++; }
      else if (Character.isDigit(str.charAt(i))){
    digitCount++;}
      }
} 
 
 
    public int getCharacterCount() {
 
    return lettersCount;
    }
 
    @Override
    public int getDigitCount() {
     return digitCount;
    }
 
}

Thank you .. the program is working now : )