Write a method to find the sum of all the elements of a particular column in the integer matrix

Question

Write a method to find the sum of all the elements of a particular column in the integer matrix

Answer 1

try this

public class array01 {

public static int sumColumn (int[] [] matrix, int column) {
int sum=0;
for (int i=0; i<matrix.length;i++){
sum=sum+matrix[i][column];

}
return sum;

}

public static void main(String[] args) {

int matrixa[][] ={{1,2,3,4},{2,6,8,9},{8,6,9,8}};

System.out.println(sumColumn(matrixa,1));
}

}