C# Programming 7. Write a program that produces a multiplication table with 25 r

Question

C# Programming

7. Write a program that produces a multiplication table with 25 rows of computations. Allow the user to input the first and last base values for the multiplication table. Display a column in the table beginning with the first base inputted value. The last column should be the ending base value entered. The first row should be for 1 times the beginning base. 1 times the (beginning base value + 1), through 1 times the ending base value. The last row should be for 25 times the beginning base, 25 times the (beginning base value + 1), through 25 times the ending base value. Base values can range from 2 to 8. Display an error message if an invalid base is entered. Display an aesthetically formatted multiplication table. An example of output produced when 2 and 8 are entered appears in Figure 6-22. 112 120 128 136 144 152 160 168 112 126 120 120 184 192 200 100 144 168

Explanation / Answer

using System;
class MultiplicationTable
{
public static void Main(){
    int startBase, endBase;

    //Taking inputs from the user.
    Console.Write("Please enter FIRST base value between 2 and 8 : ");
    startBase = int.Parse(Console.ReadLine());
    Console.WriteLine();
    Console.Write("Please enter SECOND base value between 2 and 8 (greater then or equall to FIRST base) : ");
    endBase = int.Parse(Console.ReadLine());
    Console.Write(" ");

    //checking if inputs are following the basic rules

    //1. Value should fall between 2 and 8

    //2. secondBase should be greater than firstBase
    if((startBase >=2 && startBase<=8) && (endBase>=startBase && endBase<=8))
    {
      Console.Write("n");
      Console.Write(" ");

      //this loop is to print the headings.
      for(int i=startBase; i<=endBase; i++)
      {
        Console.Write(i + " ");
      }
      Console.WriteLine();

      //This loop is to print all the 25 rows.
      for(int i=1; i<=25; i++)
      {
        Console.Write(i + " ");

        //This loop multiplies base with the current row value and displays it.
        for(int j=startBase; j<=endBase; j++)
        {
          Console.Write((j*i) + " ");
        }
        Console.WriteLine();
      }
    }
    else
      Console.WriteLine("INVALID BASE (Value is not following mentioned rules)");
}
}

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