Csharp
using System;
namespace NestedClass
{
class Program
{
public static void Main(string[] args)
{
satu s = new satu();
satu.dua sd = new NestedClass.satu.dua();
//persegi
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Menghitung Luas Persegi");
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine();
Console.Write("Masukkan sisi persegi = ");
s.A = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Luas Persegi = {0}",s.Persegi());
Console.WriteLine("\n\n");
//persegi panjang
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Menghitung Luas Persegi Panjang");
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine();
Console.Write("Masukkan Panjang = ");
sd.A = Convert.ToInt32(Console.ReadLine());
Console.Write("Masukkan Lebar = ");
sd.B = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Luas Persegi Panjang = {0}",sd.PersegiPanjang());
Console.Write("\n\nPress any key to continue . . . ");
Console.ReadKey(true);
}
}
class satu
{
protected int a;
protected int b;
public int A
{
get { return a; }
set { a = value; }
}
public int B
{
get { return b; }
set { b = value; }
}
public int Persegi()
{
return A*4;
}
public class dua : satu
{
public int PersegiPanjang()
{
return A*B;
}
}
}
}
Java
package NestedClass;
import NestedClass.Satu.Dua;
import java.util.Scanner;
public class MainClass
{
private static Scanner baca = new Scanner(System.in);
public static void main(String[] args)
{
Satu s = new Satu();
Satu.Dua sd = s.new Dua();
int a,b;
//persegi
System.out.println("Menghitung Luas Persegi");
System.out.println();
System.out.print("Masukkan sisi persegi = ");
a = baca.nextInt();
s.setA(a);
System.out.println("Luas Persegi = "+s.Persegi());
System.out.println("\n\n");
//persegi panjang
System.out.println("Menghitung Luas Persegi Panjang");
System.out.println();
System.out.print("Masukkan Panjang = ");
a = baca.nextInt();
System.out.print("Masukkan Lebar = ");
b = baca.nextInt();
sd.setA(a);
sd.setB(b);
System.out.println("Luas Persegi Panjang = "+sd.PersegiPanjang());
System.out.print("\n\nPress any key to continue . . . ");
}
}
class Satu
{
protected int a,b;
public void setA(int x)
{
this.a = x;
}
public int GetA()
{
return a;
}
public void setB(int y)
{
this.b = y;
}
public int GetB()
{
return b;
}
public int Persegi()
{
return GetA()*4;
}
class Dua extends Satu
{
public int PersegiPanjang()
{
return GetA()*GetB();
}
}
}
C++
#include <cstdlib>
#include <iostream>
using namespace std;
class Satu
{
protected : int a,b;
public :
void setA(int x)
{
a = x;
//cout<<a;
}
int GetA()
{
return a;
}
void setB(int y)
{
b = y;
}
int GetB()
{
return b;
}
int Persegi()
{
return GetA()*4;
}
class Dua;
};
class Satu::Dua : public Satu
{
public : void Show()
{
cout<<"Halo"<<endl;
}
public:
int PersegiPanjang()
{
return GetA()*GetB();
}
};
int main(int argc, char *argv[])
{
Satu s;
Satu::Dua sd;
int a,b;
//persegi
cout<<"Menghitung Luas Persegi"<<endl<<endl;
cout<<"Masukkan sisi persegi = ";
cin>>a;
s.setA(a);
cout<<"Luas Persegi = "<<s.Persegi()<<endl;
cout<<endl<<endl<<endl;
//persegi panjang
cout<<"Menghitung Luas Persegi Panjang"<<endl<<endl;
cout<<"Masukkan Panjang = ";
cin>>a;
cout<<"Masukkan Lebar = ";
cin>>b;
sd.setA(a);
sd.setB(b);
cout<<"Luas Persegi Panjang = "<<sd.PersegiPanjang()<<endl<<endl<<endl;
system("PAUSE");
return EXIT_SUCCESS;
}