Software Table

• Download source - 27 KB

Introduction

In this tip, I show you how to multiply digits and show it as a table. This is helpful for kids to learn multiplication tables.

Background

The basic idea of this software is understanding the "for loop" function for beginners. The for loop is a bit different. It's preferred when you know how many iterations you want, either because you know the exact amount of iterations, or because you have a variable containing the amount. The for loop in C# is useful for iterating over arrays and for sequential processing. The statements within the code block of a for loop will execute a series of statements as long as a specific condition remains true.

Using the Code

It is very simple to understand how to use for loops in your program.

Here is the 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 looooops_table
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private string gettable(int a,int b,int c)
        {
            string str;
            str = "";
            for (int i = b; i <= c; i++)
            {
                str = str + a.ToString() + " X" + i.ToString() + "=" + (a * i) + "\n";
            }

            return str;            
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void btn1_Click(object sender, EventArgs e)
        {
            lbl1.Text = gettable(int.Parse(txt1.Text), int.Parse(txt2.Text), 
				int.Parse(txt3.Text)).ToString();
        }

        private void btnexit_Click(object sender, EventArgs e)
        {
            Close();
        }

        private void btnclear_Click(object sender, EventArgs e)
        {
            txt1.Text = "";
            txt2.Text = "";
            txt3.Text = "";
            lbl1.Text = "";
        }        
    }
}

...

Points of Interest

So it's time to multiply with any digit. Have fun with the software table.