JAVA

Zadanie 3

/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication3;

import java.net.*;
import java.util.Scanner;

/**
 *
 * @author student.kie
 */
public class JavaApplication3 {

    /**
     * @param args the command line arguments
     */
    static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) {
     System.out.println("Podaj nazwę hosta");
     String host;
     host = sc.nextLine();
    try {

      InetAddress[] addresses = InetAddress.getAllByName(host);
      for (int i = 0; i < addresses.length; i++) {
        System.out.println(addresses[i]);
      }
    }
    catch (UnknownHostException e) {
      System.out.println("Nieznany host");
    }

}
}



Zadanie 2



/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication1;

import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

/**
 *
 * @author student.kie
 */
public class JavaApplication1 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws UnknownHostException {
        // TODO code application logic here

    InetAddress localhost = InetAddress.getLocalHost();
    System.out.println("getLocalHost:" + localhost);
}
}






Zadanie 1


/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package javaapplication2;

import java.io.IOException;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;
import java.io.*;

/**
 *
 * @author student.kie
 */
public class JavaApplication2 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        // TODO code application logic here
        InetAddress addr = InetAddress.getByName("www.wp.pl");
        InetAddress adds = InetAddress.getByName("www.ug.gda.pl");
        InetAddress addw = InetAddress.getByName("www.onet.pl");
        InetAddress adde = InetAddress.getByName("www.interia.pl");
        int port = 80;
        try
        {

        Socket socket = new Socket(addr, port);
        Socket socket2 = new Socket(adds,port);
        Socket socket3 = new Socket(addw,port);
        Socket socket4 = new Socket(adde,port);
        System.out.println(socket);
        System.out.println(socket2);
        System.out.println(socket3);
        System.out.println(socket4);
        }
        catch(UnknownHostException e){
            System.out.println("Nieznany host");
        }
        catch (Exception exc) {
         exc.printStackTrace();
        }
    }

}