Javított Tortosztalygrafikus

javitott.cs

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 TortOsztalyosGrafikus
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            radioButton1.Checked = true;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (radioButton1.Checked) { label1.Text = "+"; }
            if (radioButton2.Checked) { label1.Text = "-"; }
            if (radioButton3.Checked) { label1.Text = "*"; }
            if (radioButton4.Checked) { label1.Text = "/"; }

            int a = Convert.ToInt32(textBox1.Text);
            int b = Convert.ToInt32(textBox2.Text);
            int c = Convert.ToInt32(textBox3.Text);
        	int d = Convert.ToInt32(textBox4.Text);
            
			Tort elsoszam=new Tort(a,b);
			Tort masodikszam=new Tort(c,d);
            switch (label1.Text)
            {
                case "+":
                    label3.Text = (elsoszam + masodikszam).Kiir();
                    break;
                case "-":
                    label3.Text = (elsoszam - masodikszam).Kiir();
                    break;
                case "*":
                    label3.Text = (elsoszam * masodikszam).Kiir();
                    break;
                case "/":
                    label3.Text = (elsoszam / masodikszam).Kiir();
                    break;
                default:
                    break;
            }
        }
    }
}