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ChatClient.java

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import java.io.IOException;

import java.net.Socket;

import java.net.UnknownHostException;

/*

This is the chat client program.

The class takes a hostname and a port as arguments in its constructor and

creates a socket to connect to the ChatServer.

Type 'bye' to terminate the program.

*/

public class ChatClient {

private String hostname;

private int port;

private String userName;

public ChatClient(String hostname, int port) {

this.hostname = hostname;

this.port = port;

}

public void execute() {

try {

Socket socket = new Socket(hostname, port);

System.out.println("Connected to the chat server");

new ReadThread(socket, this).start();

new WriteThread(socket, this).start();

} catch (UnknownHostException ex) {

System.out.println("Server not found: " + ex.getMessage());

} catch (IOException ex) {

System.out.println("I/O Error: " + ex.getMessage());

}

}

void setUserName(String userName) {

this.userName = userName;

}

String getUserName() {

return this.userName;

}

public static void main(String[] args) {

if (args.length < 2) return;

String hostname = args[0];

int port = Integer.parseInt(args[1]);

ChatClient client = new ChatClient(hostname, port);

client.execute();

}

}