• File : javac SocketLocalServer1.java
• File : javac  SocketLocalClient1.java

Response from the server

A) ServerSocket: Link

//File javac SocketLocalServer1
import java.net.*;
import java.io.*;
import java.util.Date;

public class SocketLocalServer1 extends Thread
{
private static int port;
private ServerSocket serverSocket;
Date now = new Date();

public SocketLocalServer1(int port) throws IOException
{
serverSocket = new ServerSocket(port);
serverSocket.setSoTimeout(20000);
}

public void run()
{
while(true)
{
try
{
System.out.println("Waiting for client on port " +
serverSocket.getLocalPort() + "...");
Socket server = serverSocket.accept();
System.out.println("Now connected to "
+ server.getRemoteSocketAddress() + " "+ new Date().toString());
DataInputStream in =
new DataInputStream(server.getInputStream());
System.out.println(in.readUTF());
DataOutputStream out =
new DataOutputStream(server.getOutputStream());
out.writeUTF("Thank you for connecting to "
+ server.getLocalSocketAddress() + "\nGoodbye!");
server.close();
}catch(SocketTimeoutException s)
{
System.out.println("Socket timed out!");
break;
}catch(IOException e)
{
e.printStackTrace();
break;
}
}
}
public static void main(String [] args)
{
port=9000;
try
{
Thread t = new SocketLocalServer1(port);
t.start();
}catch(IOException e)
{
e.printStackTrace();
}
}
}

B) Client Code: Link

// File Name SocketLocalClient1.java

import java.io.*;
import java.net.*;
public class SocketLocalClient1
{
private static String serverName;
public static void main(String [] args)
{
String sName = "localhost";
int port = 9000;
try
{
System.out.println("Connecting to " + sName
+ " on port " + port);
Socket client = new Socket(sName, port);
System.out.println("Just connected to "
+ client.getRemoteSocketAddress());
OutputStream outToServer = client.getOutputStream();
DataOutputStream out =
new DataOutputStream(outToServer);

out.writeUTF("Hello from "
+ client.getLocalSocketAddress());
InputStream inFromServer = client.getInputStream();
DataInputStream in =
new DataInputStream(inFromServer);
System.out.println("Server says " + in.readUTF());
client.close();
}catch(IOException e)
{
}
}
}