Math Game Help

snoun

hi, i am creating a math game for a class i'm in. i am creating a math game but i am having trouble trying to figure out how to check to see if the answer that was being input in correct or not that shows up in the text box. thanks in advance for the help. i am also posting the code i have written so far.

10 Replies

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Vulpes15y ago
Accepted answer
I've had a quick look and I think you want something like this (untested):

private void btnSubmit_Click(object sender, EventArgs e)
{
   int num1 = int.Parse(txtNum1.Text);
   int num2 = int.Parse(txtNum2.Text);
   int guess;
   bool isValid = int.TryParse(txtBoxAns.Text, out guess);

   if (!isValid)
   {
   MessageBox.Show("You have not input a valid integer. Please amend");
   txtBoxAns.Focus();
   return;
   }

   int result = 0;

   if (lblSign.Text == "+")
   {
   result = num1 + num2;
   }
   else if (lblSign.Text == "-")
   {
   result = num1 - num2;
   }
   else
   {
   result = num1 * num2;
   }

   if (result == guess)
   {
   MessageBox.Show("Congratulations, you guessed correctly!");
   }
   else
   {
   MessageBox.Show("Sorry, you guessed incorrectly. The correct answer is " + result.ToString());
   }
}
Suthish Nair15y ago
If the query got resolved, then mark the post that helped you as Answer so will be helpful for others. Otherwise if you got the solution please share with us.
Guest User15y ago
Yours is better - I forgot to check for a valid number in txtBoxAns.
snoun15y ago
thanks you guys all for the help.
Frogleg15y ago
Add
int score = 0;
at the top of your class
if answer is correct add 10 to score
score= score + 10;//adds ten to score
lblScore.Text = ("Score = " + Convert.ToString(score));
snoun15y ago
im also trying to figure out how to increment the score also. like if you answer it right you would gain 10 points and it would keep adding when the answer is correct again
Frogleg15y ago
Another way is to use enum
Vulpes15y ago
It looks like John and I are thinking on similar lines :)

I've also noticed a small mistake in btnSub_Click which will prevent it from working correctly:

private void btnSub_Click(object sender, EventArgs e)
{
   lblSign.Text = " -"; // should be no space before "-"
   randNum();
}
snoun15y ago
thanks for the help i will try this out
Guest User15y ago
In btnSubmit_Click, you can retrieve the two values like this (I'll leave the other operators for you to figure out but this should get you going in the right direction):

private void btnSubmit_Click(object sender, EventArgs e)
{
    if (txtNum1.Text != "" && txtNum2.Text != "" && txtBoxAns.Text != "")
    {
        int correctAnswer = 0;
        int userAnswer = Int32.Parse(txtBoxAns.Text);
        int num1 = Int32.Parse(txtNum1.Text);
        int num2 = Int32.Parse(txtNum2.Text);
        if (lblSign.Text == @"+")
        {
            correctAnswer = num1 + num2;
        }

        if (correctAnswer == userAnswer)
        {
            MessageBox.Show(@"Correct!");
        }
        else
        {
            MessageBox.Show(@"Incorrect...");
        }
    }
    else
    {
        MessageBox.Show(@"Please select an operator and enter your answer");
    }
}