VB.Net program to calculate the sum of columns of MATRIX elements

Here, we are going to learn how to calculate the sum of columns of MATRIX elements in VB.Net?
Submitted by Nidhi, on December 11, 2020 [Last updated : March 07, 2023]

Sum of columns of MATRIX elements

Here, we will read a 2X3 matrix from the user then calculate the sum of column elements and then print the sum on the console screen.

Program/Source Code:

The source code to calculate the sum of columns of MATRIX elements is given below. The given program is compiled and executed successfully.

VB.Net code to find the sum of columns of MATRIX elements

'VB.Net program to calculate the sum of columns of MATRIX elements.

Module Module1
    Sub Main()
        Dim arr(,) As Integer = New Integer(2, 3) {}
        Dim sum As Integer = 0

        Console.WriteLine("Enter Matrix elements: ")
        For i = 0 To 1 Step 1
            For j = 0 To 2 Step 1
                Console.Write("Enter element[{0}][{1}]: ", i, j)
                arr(i, j) = Integer.Parse(Console.ReadLine())
            Next
        Next

        Console.WriteLine("Matrix elements: ")
        For i = 0 To 1 Step 1
            For j = 0 To 2 Step 1
                Console.Write("{0} ", arr(i, j))
            Next
            Console.WriteLine()
        Next

        For j = 0 To 2 Step 1
            sum = 0
            For i = 0 To 1 Step 1
                sum = sum + arr(i, j)
            Next
            Console.WriteLine("Sum of Columns {0}: {1}", j, sum)
        Next
    End Sub

End Module

Output

Enter Matrix elements:
Enter element[0][0]: 10
Enter element[0][1]: 20
Enter element[0][2]: 30
Enter element[1][0]: 40
Enter element[1][1]: 50
Enter element[1][2]: 60
Matrix elements:
10 20 30
40 50 60
Sum of Columns 0: 50
Sum of Columns 1: 70
Sum of Columns 2: 90
Press any key to continue . . .

Explanation

In the above program, we created a module Module1 that contains a function Main(). In the Main() function, we created a two-dimensional array of size 2X3.

Console.WriteLine("Enter Matrix elements: ")
For i = 0 To 1 Step 1
    For j = 0 To 2 Step 1
        Console.Write("Enter element[{0}][{1}]: ", i, j)
        arr(i, j) = Integer.Parse(Console.ReadLine())
    Next
Next

In the above code, we read the elements of the matrix from the user, here the outer loop represents the rows of the matrix and the inner loop is used to represent columns of the matrix.

Console.WriteLine("Matrix elements: ")
For i = 0 To 1 Step 1
    For j = 0 To 2 Step 1
        Console.Write("{0} ", arr(i, j))
    Next
    Console.WriteLine()
Next

For j = 0 To 2 Step 1
    sum = 0
    For i = 0 To 1 Step 1
        sum = sum + arr(i, j)
    Next
    Console.WriteLine("Sum of Columns {0}: {1}", j, sum)
Next

In the above code, we calculated the sum of columns of Matrix elements and then printed the 2X3 matrix on the console screen.