Questions on my homework in a C# class
<p>I am taking a programming class in C# and here is my first assignment, and already I am in need of help. I think I can handle the problem I just need help getting started.</p>

<blockquote>
  <p>Create an Average class with a public data member to collect the sum of the integer entries and a public data member to hold the double average of the sum of the 10 integers.</p>
  
  <ul>
  <li>Public class method to get each integer number input. </li>
  <li>Public class method to calculate the average of the numbers input. </li>
  <li>Public class method to output the average of the numbers input. </li>
  <li>Main( ) function that instantiates one Average object, and includes a for loop to take 10 inputs and calls to the calculation and output method.</li>
  </ul>
  
  <p>The next chapter covers looping, however, you should be able to build a for-loop to accomplish the 10 inputs.</p>
</blockquote>

<pre><code>namespace Assignment1_White
{

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    private void button1_Click(object sender, EventArgs e)
    {
        int num1;
        int num2;
        int num3;
        int num4;
        int num5;
        int num6;
        int num7;
        int num8;
        int num9;
        int num10;
        int answer;

        num1 = int.Parse(num100.Text);
        num2 = int.Parse(num200.Text);
        num3 = int.Parse(num300.Text);
        num4 = int.Parse(num400.Text);
        num5 = int.Parse(num500.Text);
        num6 = int.Parse(num600.Text);
        num7 = int.Parse(num700.Text);
        num8 = int.Parse(num800.Text);
        num9 = int.Parse(num900.Text);
        num10 = int.Parse(num1000.Text);



        answer = (num1 + num2 + num3 + num4 + num5 + num6 + num7 + num8 + num9 +num10)/10;
        MessageBox.Show(answer.ToString());

   }
}
</code></pre>

<p>I got this far but now I am stuck on error checking. Currently it will divide by 10 everytime. I need a way to add an if statement. </p>
