Creating Multiplication table using two-dimensional array.

Question

i need a program of multiplication table using two-dimensional array.

thanks.

Jes

Answer 1

class Program
    { 
        static void Main(string[] args)
        {
            int[][] numbers = new int[9][];
            for (int line = 1; line <=9; line++)
            {
                numbers[line-1]=new int[line];
 
                for (int col = 1; col <=line; col++)
                {
                    numbers[line - 1][col - 1] = line * col;
                }
            }
 
            for (int line = 1; line <= 9; line++)
            {
                for (int col = 1; col <= line; col++)
                {
                    Console.Write((col + "*" + line + "=" + numbers[line - 1][col - 1]).PadRight(8));
                }
                Console.WriteLine();
            }
        }
    }

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Answer 2

 

       

its like this output, but i need the program created in two-dimensional array form

       

        static void Main(string[] args)

        {

           int prod = 0;

            for (int row = 1; row <= 10; row++)
            {
                for (int col = 1; col <= 10; col++)
                {
                    prod = row * col;
                    Console.Write(prod + "\t");
                }
                Console.WriteLine();

            }
            Console.ReadLine();

                

Answer 3

Hi,

I didnt really understand you. Do you want to have numbers in 2d array, like:

 int[,] array2Da = new int[10, 2] { { 1, 2 }, { 3, 4 }, { 5, 6 }, { 7, 8 }, { 9, 10 }, { 11, 12 }, { 13, 14 }, { 15, 16 }, { 17, 18 }, { 19, 20 } };
            for (int i = 0; i < array2Da.GetLength(1); i++)
            {
                for (int j = 0; j < array2Da.GetLength(0); j++)
                {
                    Console.WriteLine(string.Format("{0}\t", i * j));
                }
            }

---

Mitja

Answer 4

Hi

filling the table  - more or less based on your own code ;-)

            const int extent = 10; //or 100, or 1000 or ...
            int[,] multiplicationTable = new int[extent, extent];
            for (int x = 1; x < extent + 1; x++)
                for (int y = 1; y < extent + 1; y++)
                    multiplicationTable[x - 1, y - 1] = x * y;

Result:

  1   2   3   4   5   6   7   8   9  10
  2   4   6   8  10  12  14  16  18  20
  3   6   9  12  15  18  21  24  27  30
  4   8  12  16  20  24  28  32  36  40
  5  10  15  20  25  30  35  40  45  50
  6  12  18  24  30  36  42  48  54  60
  7  14  21  28  35  42  49  56  63  70
  8  16  24  32  40  48  56  64  72  80
  9  18  27  36  45  54  63  72  81  90
 10  20  30  40  50  60  70  80  90 100

Chris

Answer 5

Hi,

Looks like homework. I always suggest to try this by yourself and ask about a particular point where you are stuck so that you learn something in the process instead of copying/pasting some code.

Have you tried to just declare a two dimensional array ? Where are you stuck ? Else see other responses for a ready to consume solution...

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Answer 6

Hi ies88：）

Mine is working properly……And you mean two demision instead of two loops.

Plz run my program and it will generate the multipliation table.

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Answer 7

It's a jagged array which is similar to but not exactly a multidimensional array.