Input numbers in 2d array and find the sum of each column in Java
Two Dimensional Array - Question 6
In this question, we will see how to input numbers in a 3X3 integer matrix (2d array) and find the sum of each column separately in Java programming. To know more about two dimensional array click on the two dimensional array lesson.
Q6) Write a program in Java to input numbers in a 3X3 integer matrix (2d array) and find the sum of each column separately.
Program
import java.util.Scanner;
public class Q6
{
public static void main(String args[])
{
int a[][]=new int[3][3], r,c,cs;
Scanner sc=new Scanner(System.in);
System.out.println("Enter 9 numbers");
for(r=0; r<3; r++)
{
for(c=0; c<3; c++)
{
a[r][c]=sc.nextInt();
}
}
for(r=0; r<3; r++)
{
cs=0;
for(c=0; c<3; c++)
{
System.out.print(a[r][c]+" ");
cs=cs+a[c][r];
}
System.out.println(" Column Sum = "+cs);
}
}
}Output
Enter 9 numbers 18 12 72 10 15 45 38 5 64 18 12 72 Column Sum = 66 10 15 45 Column Sum = 32 38 5 64 Column Sum = 181
