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Buôi 2 - Bài 2 Tue Mar 12, 2013 2:48 pm
Admin
Admin
Server:
Client:
- Code:
import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author nguyenict
*/
public class Server2_2 {
public static void main(String[] args) throws IOException {
ServerSocket ss = new ServerSocket(9999);
System.out.println("Server is started!");
while (true){
Socket s = ss.accept();
Client c = new Client(s);
c.start();
}
}
}
class Client extends Thread{
Socket s;
Client(Socket s){
this.s = s;
}
public void run(){
try{
Scanner in = new Scanner(s.getInputStream());
PrintWriter out = new PrintWriter(s.getOutputStream());
while (true){
String[] recive = in.nextLine().split(" ");
float ans=0;
if (recive[0].toLowerCase().equals("EXIT"))
break;
switch(recive[0]){
case "+":
ans = Integer.parseInt(recive[1])+Integer.parseInt(recive[2]);
out.println(ans+"");
out.flush();
break;
case "-":
ans = Integer.parseInt(recive[1])-Integer.parseInt(recive[2]);
out.println(ans+"");
out.flush();
break;
case "*":
ans = Integer.parseInt(recive[1])*Integer.parseInt(recive[2]);
out.println(ans+"");
out.flush();
break;
case "/":
ans = (float)Integer.parseInt(recive[1])/(float)Integer.parseInt(recive[2]);
out.println(ans+"");
out.flush();
break;
}
}
s.close();
}catch(IOException e){
}
}
}
Client:
- Code:
import java.io.IOException;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.Scanner;
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
* @author nguyenict
*/
public class Client2_2 {
public static void main(String[] args) throws UnknownHostException, IOException {
Socket s = new Socket("127.0.0.1",9999);
Scanner in = new Scanner(s.getInputStream());
PrintWriter out = new PrintWriter(s.getOutputStream());
Scanner keyboard = new Scanner(System.in);
while (true){
System.out.print("Nhap phep toan: ");
String str = keyboard.nextLine();
String[] recive = str.split(" ");
if (recive[0].toUpperCase().equals("EXIT"))
break;
out.println(recive[1]+" "+recive[0]+" "+recive[2]);
out.flush();
String ans = in.nextLine();
System.out.println("Ket qua: "+ans);
}
s.close();
}
}
