Program in Java: To store values into 3x3 matrix. Find the sum of the boundary of the matrix.
/*
* Program in Java: To store values into 3x3 matrix. Find the sum of the boundary of the matrix.
*/
import java.util.Scanner;
class boundary
{
public static void main(String args[])
{
Scanner sc=new Scanner(System.in);
System.out.println("Enter 3x3 matrix:");
int A[][] = new int[3][3];
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
A[i][j]=sc.nextInt();
}
}
int ob=0; //outer boundary
for(int i=0;i<3;i++)
{
for(int j=0;j<3;j++)
{
if(i==0 || j==0 || j==2 || i==2)
ob=ob+A[i][j];
}
}
System.out.println("Outer boundary sum of matrix:"+ob);
}
}