Messages In This Thread

MindHACKer · Nov 22 2011, 05:31 AM

M. Bison Wrote:Why don't you simply think ahead and prevent the overflows and errors from ever having occurred to begin with?

I do, but i use this Method to keep my program from crashing, in case i forgot something, or if there was a missing link or file (It's very useful).
I'll give you an example:
this is a simple calculator code free of errors or overflows, before running..

Code:
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 hhhhh

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            try

                    {

                        int z;

                        char t = Convert.ToChar(textBox2.Text);

                        switch (t)

                        {

                            case '+':

                                z = Convert.ToInt32(textBox1.Text != null) + Convert.ToInt32(textBox3.Text != null);

                                textBox4.Text = z.ToString();

                                break;

                            case '-':

                                z = Convert.ToInt32(textBox1.Text) - Convert.ToInt32(textBox3.Text);

                                textBox4.Text = z.ToString();

                                break;

                            case '*':

                                z = Convert.ToInt32(textBox1.Text) * Convert.ToInt32(textBox3.Text);

                                textBox4.Text = z.ToString();

                                break;

                            case '/':

                                float doc = Convert.ToSingle(textBox1.Text) / Convert.ToSingle(textBox3.Text);

                                textBox4.Text = doc.ToString();

                                break;

                        }

                    }

                    catch (Exception ex)

                    {

                        MessageBox.Show(ex.Message);

                    }

        }

        private void button2_Click(object sender, EventArgs e)

        {

            MessageBox.Show("NeptuneHACK!");

        }

     }

}

As you can see No errors, now what if the user left the textboxs empty & pressed Button1, the program will crash... so the Method explains the Error & keeps the program from crashing.
& keeps me from being embarrassed in front of the Prof when i show her the Project. ^_^

MindHACKer