Contoh Program menggunakan Class Dan Objek

Mengenai nama class anda dapat rubah sesuai program yang kalian buat

import java.io.*;
public class kalkulator {

    double bil1,bil2;
 public kalkulator(double bil1,double bil2)//nama class{
  this.bil1=bil1;
  this.bil2=bil2;
 }
 double tambah(){
  return bil1+bil2;
 }
 double kurang(){
  return bil1-bil2;
 }
 double kali(){
  return bil1*bil2;
 }
 double bagi(){
  return bil1/bil2;
 }
     public static void main (String[] args) {
     kalkulator plus,minus,b,k;//nama objek
     plus = minus = b = k = new kalkulator(0,0);
     DataInputStream input = new DataInputStream(System.in);
     double b1=0,b2=0;
     try{
      System.out.print ("Masukkan Nilai Bilangan 1 : ");
      b1=Double.parseDouble(input.readLine());
      System.out.print ("Masukkan Nilai Bilangan 2 : ");
      b2=Double.parseDouble(input.readLine());
      plus.bil1=b1;
      plus.bil2=b2;
      minus.bil1=b1;
      minus.bil2=b2;
      b.bil1=b1;
      b.bil2=b2;
      k.bil1=b1;
      k.bil2=b2;
     }catch (Exception e){System.out.println (e);}
     System.out.println ("");
     System.out.println (b1+" + "+b2+" = "+plus.tambah());
     System.out.println (b1+" - "+b2+" = "+minus.kurang());
     System.out.println (b1+" / "+b2+" = "+b.bagi());
     System.out.println (b1+" * "+b2+" = "+k.kali());
    }
  
}