1-) C# - ders 7

   private void button1_Click(object sender, EventArgs e)

        {

            int sayi1;

            int sayi2;

            int toplam;

            sayi1 = Convert.ToInt32(textBox1.Text);

            sayi2 = Convert.ToInt32(textBox2.Text);

            toplam = sayi1 + sayi2;

            label4.Text = toplam.ToString();

        }

        private void button2_Click(object sender, EventArgs e)

        {

            int a, b, sonuc;

            a = Convert.ToInt32(textBox3.Text);

            b = Convert.ToInt32(textBox4.Text);

            sonuc = a * b;

            label7.Text = sonuc.ToString();