C # PROGRAMI İLE ÖRNEK SORULAR-2

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace sayı_topla

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void timer1_Tick(object sender, EventArgs e)

        {

        }

        private void button1_Click(object sender, EventArgs e)

        {

            int x, y, z;

            x = Convert.ToInt32(textBox1.Text);

            y= Convert.ToInt32(textBox2.Text);

            z = x + y;

            textBox3.Text = z.ToString();

        }

    }

}