Math project!

[Mikepoulsen]

Hello Coders!
I need a kick starter to genrate randoms +, -,* and / math pieces.
Im going to make a website for School kids showing how to do these math things.
I really only need the generator to be finish. So if a kind soul would be nice to teach me this.
I would be very pleased.
Thank you !

Regards Mike Poulsen

[BigEd781]

Well, you are not very clear about what you are actually trying to accomplish, but the most simple way of doing this would be to generate a random number and then switch on that number to perform a different operation.

[rocky_upadhaya]

I Got you Problem as a mater of fact I am working on exactly same project......Hope this Helps. Hope you can add '/' feature by yourself..

string[] ope =
            {
               "X","+","-"
            };

            Random aRan = new Random();
            int aa = aRan.Next(0, 3);
            int a = aRan.Next(1, 100);
            int b = aRan.Next(1, 100);

            string c = ope[aa];
            switch (c)
            {
                case "X":
                    realAns = a * b;
                    break;
               
                case "+":
                     realAns = a + b;
                     break;
                
               default:
                    realAns = a - b;
                    break;
           }

[Mikepoulsen]

I made the "math" codes. I just need the number generator now

[rocky_upadhaya]

what kind of number generator?? Clarify your question....

[Mikepoulsen]

Okay i got the "generator" I Stoled the Random Numbers from Rocky, so everything is going good. Know, How can i make my label to Increase with 1 number, each time a person says the right awnser for the math question?

Here is my little code

            
if ((textBox1.Text == c.ToString()))
            {
                int o = 0;
                o++;
                label4.Text = "1";
            }

how do i modify that right xD?
Thanks

[kristof1104]

On top of your class declare a variable that will hold the score
like
private int score=0;

then you simply do this:
if ((textBox1.Text == c.ToString()))
{
score++;
label4.Text = score;
}

I don't know what you are doing with the int o=0 o++; (because thats pretty useless)

greetz kristof

[Mikepoulsen]

Hey kris! Thanks for ur awnser. Have i done anything wrong. Or should it not keep ticking each time i press the button?

Here is my intire 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 Skole_projekt_
{
    public partial class FormPlus : Form
    {
        public FormPlus()
        {
            InitializeComponent();
        }
        float a, b, c;
        private void FormPlus_Load(object sender, EventArgs e)
        {
            Random Nran = new Random();
            int H2 = Nran.Next(1, 100);
            int H1 = Nran.Next(1, 100);
            int o = 0;

            label1.Text = H1.ToString();
            label2.Text = H2.ToString();
            label3.Text = o.ToString();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            a = Convert.ToInt32(label1.Text);
            b = Convert.ToInt32(label2.Text);
            c = a + b;
            label3.Text = c.ToString();

            Random Nran = new Random();
            int H = Nran.Next(1, 100);

            if ((textBox1.Text == c.ToString()))
            {
                int score = 0;
                score++;
                label4.Text = score.ToString(); ;
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }
    }
}

Also. After this "problem" is solved. I would like to know how to "refresh" the Rnum on button click. Thank you !

[kristof1104]

You have to declare score outside a methode. Because if you declare it within a methode, the variable will be destroid when you leave the methode and be created each time you enter the methode.. thats why in the code you have now, the only values for score you'll get is 0 or 1.
use

(also for the refreshing can you explain what you want to do a bit more? )

greetz
kristof

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 Skole_projekt_
{
    public partial class FormPlus : Form
    {

private int score = 0;

        public FormPlus()
        {
            InitializeComponent();
        }
        float a, b, c;
        private void FormPlus_Load(object sender, EventArgs e)
        {
            Random Nran = new Random();
            int H2 = Nran.Next(1, 100);
            int H1 = Nran.Next(1, 100);
            int o = 0;

            label1.Text = H1.ToString();
            label2.Text = H2.ToString();
            label3.Text = o.ToString();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            a = Convert.ToInt32(label1.Text);
            b = Convert.ToInt32(label2.Text);
            c = a + b;
            label3.Text = c.ToString();

            Random Nran = new Random();
            int H = Nran.Next(1, 100);

            if ((textBox1.Text == c.ToString()))
            {
                   score++;
                label4.Text = score.ToString(); ;
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }
    }
}

[Mikepoulsen]

Thanks KRis! Works now.

By refreshing i mean "update" the random number. Because i want a new math piece to pop if the awnser is correct.

[Mikepoulsen]

SOLVED!


if ((textBox1.Text == c.ToString()))
{
int H2 = Nran.Next(1, 100);
int H1 = Nran.Next(1, 100);
int o = 0;

label1.Text = H1.ToString();
label2.Text = H2.ToString();
label3.Text = o.ToString();
score++;
label4.Text = score.ToString(); ;
textBox1.Text = "";
}

Im so good! . Thanks kris for helping!

[Mikepoulsen]

NEW QUESTION!
In my : If ((textBox.Text==c.tostring(())

And my code....

How do i make Else if. Like if the awnser is not corrrect
{
Code, blah blah
}thanks.

A friend told me to try Switch statement. But it's so diffrent from If, in my oppinion.
Could some1 be nice to convert my if statements to switch, so i can learn by seeing?
Because the i can do a default case. To do the if else. I was talking about.

Thanks! Please help me. I appriciate it very much!

[memeloo]

How do i make Else if. Like if the awnser is not corrrect
{
Code, blah blah
}thanks.

you should learn some basics first buy some book or visit msdn http://msdn.microsoft.com/en-us/libr...8VS.71%29.aspx

[Mikepoulsen]

Memeloo i love u <3!

[Arjay]

Memeloo i love u <3!

Mike, Memeloo's advice is right on. C'mon, the folks answering questions here are volunteers. As such, it's expected that folks asking questions need to have a basis in the language they are trying to program in. So getting a basic C# book and working through the chapters is the best way to start. Keep in mind that as you do this, you can post any questions you may have while working through the book. We'll be happy to answer these basic questions.

However, it's a bit misuse of the forum, if you are asking more advance questions (like details of programming a game) and then pop out with a basic question like "how do I program a while loop".

A question like that in the middle of an advanced question is going to frustrate folks doing the answering because a basic level of understanding is expected before someone tackles an advanced subject. It's frustrating because it takes too much time to explain an advanced concept only to find out that the OP doesn't understand the basic syntax of the language.