Sum of Each Column of a Matrix

Sum of Each Column of a Matrix:


Program:

import java.util.Scanner;

public class MatrixColumnSum {

public static void main(String[] args) {

int r, c;

Scanner s = new Scanner(System.in);

r = s.nextInt();

c = s.nextInt();

int[][] matrix = new int[r][c];

for(int i = 0; i<r; i++) {

for(int j = 0; j<c;j++) {

matrix[i][j] = s.nextInt();

}

}

int sum = 0;

for(int j = 0; j<c; j++) {

sum = 0;

for(int i = 0;i<r; i++) {

sum += matrix[i][j];

}

System.out.println(j+1 + "  " + "Column sum is: " + ""+ sum);

}

}

}


Output:

3 3

1 2 3 4 5 6 7 8 9

1  Column sum is: 12

2  Column sum is: 15

3  Column sum is: 18



                                                          Happy Coding 💻:-)


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