Program Calculator Sederhana Dengan Visual C#

Berikut merupakan program Visual C# yang berguna untuk membuat Calculator yang sederhana. :)

Designlah program Calculator sederhana dengan Visual C# berikut ini :

Listing Program program Calculator sederhana dengan Visual C# berikut ini :

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Calculator_Sederhana
{
    public partial class Calculator : Form
    {
      
        private double a1, a2, xhasil = 0;
        private string op = "";

        public Calculator()
        {
            InitializeComponent();
        }

        private void btntambah_Click(object sender, EventArgs e)
        {
            op = "+";
        }
        private void btnkurang_Click(object sender, EventArgs e)
        {
            op = "-";
        }
        private void btnkali_Click(object sender, EventArgs e)
        {
            op = "*";
        }
        private void btnbagi_Click(object sender, EventArgs e)
        {
            op = "/";
        }
        private void btnhasil_Click(object sender, EventArgs e)
        {
            a1 = double.Parse(bil1.Text);
            a2 = double.Parse(bil2.Text);
            switch(op){
                case "/" : xhasil = a1/a2 ;
                    break;
                case "*" : xhasil = a1*a2 ;
                    break;
                case "-" : xhasil = a1-a2 ;
                    break;
                case "+" : xhasil = a1+a2 ;
                    break;
            }
            hasil.Text = xhasil.ToString() ;
        }
        private void Calculator_Load(object sender, EventArgs e)
        {
            hasil.Enabled = false;
        }
    }
}