mysocket.java

3 pairs of sample codes for basic net apps: . Socket server/client . start the server first . Datagr

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

public class MySocket {
    public static void main(String[] args) {
        new MySocket().startClient();
    }

    private void startClient(){
        try {
            Socket socket = new Socket("localhost", 3001);

            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
            out.println("Hello from client.");

            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            System.out.println("-- server wrote: " + in.readLine());
        }
        catch (UnknownHostException ex) {
            ex.printStackTrace();
        }
        catch (IOException ex) {
            ex.printStackTrace();
        }
    }

}