babV | absract

babV | absract

Kelas abstract adalah kelas murni yang tidak boleh memiliki objek, dan satu/lebih method-methodnya yang abstract harus diimplementasikan (override) oleh kelas turunannya.

contoh programnya menggunakan C# :

/*

* Created by SharpDevelop.

* User: dino fajar rizkian

* Date: 08/07/2012

* Time: 14:05

*

* To change this template use Tools | Options | Coding | Edit Standard Headers.

*/

using System;

namespace abstrak

{

abstract public class gamers {

public string namachar,idchar,server;

public void getdata()

{

Console.Write("masukan namachar : ");

namachar = Console.ReadLine();

Console.Write("masukan idchar : ");

idchar = Console.ReadLine();

Console.Write(" Server : ");

server = Console.ReadLine();

}

public abstract void taruhdata();

}

class user1 :gamers {

public override void taruhdata(){

Console.WriteLine("Server : "+ server);

}

}

class user2 : gamers{

public override void taruhdata(){

Console.WriteLine("Server b: "+ server);

}

}

class Program

{

public static void Main(string[] args)

{

user1 u1 = new user1();

user2 u2 = new user2();

Console.WriteLine();

Console.WriteLine("Masukan data gamers 1 ");

u1.getdata();

Console.WriteLine("Masukan data gamers 2 ");

u2.getdata();

Console.WriteLine("\ndata gamers 1");

u1.taruhdata();

Console.WriteLine("\ndata gamers 2");

u2.taruhdata();

Console.ReadKey(true);

}

}

}

Hasilnya seperti dibawah ini:

Kalo ini menggunakan Java:

package abstrak;

import java.util.*;

abstract class gamers{

public Scanner input = new Scanner(System.in);

public String namachar;

long idchar;

public String server;

public void getdata(){

System.out.print("masukan namachar : ");

namachar = input.next();

System.out.print("masukan idchar : ");

idchar = input.nextLong();

System.out.print("masukan server : ");

server = input.next();

}

public abstract void taruhdata();

}

class user1 extends gamers{

public @Override void taruhdata(){

System.out.println(" namachar : " +namachar);

System.out.println(" idchar : " +idchar);

System.out.println(" Server a : " +server);

}

}

class user2 extends gamers{

public @Override void taruhdata(){

System.out.println(" namachar : " +namachar);

System.out.println(" idchar : " +idchar);

System.out.println(" Server b : " +server);

}

}

public class Main {

public static void main(String[] args) {

user1 u1 = new user1();

user2 u2 = new user2();

System.out.println();

System.out.println("masukan data gamers1");

u1.getdata();

System.out.println("masukan data gamers2");

u2.getdata();

System.out.println("\ndata gamers1");

u1.taruhdata();

System.out.println("\ndata gamers2");

u2.taruhdata();

}

}

Hasilnya seperti ini:

  

Kalo yang ini menggunakan C++ :

#include <iostream>

const int limit = 50;

using namespace std;

class gamers {

private:

char namachar [limit];

unsigned long idchar;

public:

void getdata(){

cout << "masukan namachar   : ";

cin >> namachar;

cout << "masukan idchar : ";

cin >> idchar;

}

void taruhdata(){

cout << " nachar    : " << namachar << endl;

cout << " Idchar    : " << idchar ;

}

};

class user1 : public gamers {

private :

char server[limit];

public:

void getdata(){

gamers::getdata();

cout << "Server : ";

cin >> server;

}

void taruhdata(){

gamers::taruhdata();

cout << endl << "Server :"<<server;

}

};

class user2:public gamers{

};

int main()

{

    user1 u1;

    user2 u2;

    cout << endl;

    cout << "masukan data gamers1" << endl;

    u1.getdata();

    cout << "masukan data gamers2" << endl;

    u2.getdata();

    cout << "\ndata gamers1" << endl;

    u1.taruhdata();

    cout << "\ndata gamers2" << endl;

    u2.taruhdata();

    return 0;

}

Hasilnya seperti ini:

Posted in: OOP2