Question

Write a program to accept a double dimensional array of size 5 × 6 and find the sum of the elements of each column.

Answer 1

import java.util.*;
public class DDA5
{
    public void main()
    {
        Scanner sc = new Scanner(System.in);
        int AR[][] = new int[5][6];
        int r, c;
        System.out.println("Filling array: ");
        for(r = 0; r < 5; r++)
        {
            for(c = 0; c < 6; c++)
            {
                //System.out.print("Cell[" + r+"]["+c +"] : " );
                AR[r][c] = (int)(Math.random() * 100);
            }
        }
        System.out.println("The array is : ");
        for(r = 0; r < 5; r++)
        {
            for(c = 0; c < 6; c++)
            {
                System.out.print(AR[r][c] + "\t");
            }
            System.out.println();
        }
        System.out.println("The Sum of each Column is : ");
        for(c = 0; c < 6; c++)
        {
            int sum = 0; 
            for(r = 0; r < 5; r++)
            {
                sum = sum + AR[r][c];
            }
            System.out.println("Sum of Elements of Column num " + c + " is : " + sum);
        }
    }
}

Output:

Filling array:
The array is:
63 62 33 57 79 26
70 54 84 42 11 82
83 74 16 67 31 82
70 9 92 99 13 19
92 49 27 83 12 44
The Sum of each Column is :
Sum of Elements of Column num 0 is : 378
Sum of Elements of Column num 1 is : 248 
Sum of Elements of Column num 2 is : 252 
Sum of Elements of Column num 3 is : 348 
Sum of Elements of Column num 4 is : 146 
Sum of Elements of Column num 5 is : 253