Java:Client and Server

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Client

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

public class client {
    public static void main(String[] args) throws IOException {

        Socket socket = null;
        PrintWriter out = null;
        BufferedReader in = null;
		BufferedReader read = new BufferedReader(new InputStreamReader(System.in));
       	System.out.print("Address-->");
       	String serveraddress=read.readLine();
       
        try {
            socket = new Socket(serveraddress, 1234);
            out = new PrintWriter(socket.getOutputStream(), true);
            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Don't know about host");
            System.exit(1);
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for the connection");
            System.exit(1);
        }
		System.out.println("Connected");
   
        String num1,num2;
                        
		//System.out.println(in.readLine()); //Uncomment to debug

		System.out.print("This int-->");
		num1=read.readLine();
		out.println(num1);
		System.out.print("Times this int-->");
		num2=read.readLine();	
		out.println(num2);
		System.out.println("Equals");

		System.out.println(in.readLine());

        out.close();
        in.close();
        read.close();
        socket.close();
    }
}

Server

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

public class server {
    public static void main(String[] args) throws IOException {
 
        System.out.println("Host name: " + InetAddress.getLocalHost());
	
        ServerSocket serverSocket = null;
        try {
            serverSocket = new ServerSocket(1234);
        } catch (IOException e) {
            System.err.println("Could not listen on port: 1234.");
            System.exit(1);
        }
		
		//System.out.println(serverSocket.getLocalSocketAddress());
        Socket clientSocket = null;
        try {
            clientSocket = serverSocket.accept();
        } catch (IOException e) {
            System.err.println("Accept failed.");
            System.exit(1);
        }
        System.out.println("Connected");
        
        
        PrintWriter out = new PrintWriter(clientSocket.getOutputStream(), true);
        BufferedReader in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
        String int1,int2;
		int num1=0,num2=0;
		
	//out.println("server: Connected");//uncomment for debug



		int1 = in.readLine();
		System.out.println(int1);
		int2 = in.readLine();
		System.out.println("*"+int2);
		
		
		try
		{  
        num1=Integer.parseInt(int1);
        num2=Integer.parseInt(int2);
        }
        catch(NumberFormatException nfe)
        {
        	System.out.println("Numbers not integers");
        	out.println("Numbers not integers");
        }
        System.out.println("="+num1*num2);
        out.println(String.valueOf(num1*num2));
        
        
        
        out.close();
        in.close();
        clientSocket.close();
        serverSocket.close();
    }
}