Source Code:
public class IdentityMatrix {
public static void main(String[] args) {
int[][] a = {
{1, 0},
{0, 1}
};
boolean flag = true;
for(int i=0; i<2; i++) {
for(int j=0; j<2; j++) {
if(i == j && a[i][j] != 1) {
flag = false;
}
if(i != j && a[i][j] != 0) {
flag = false;
}
}
}
System.out.println(flag);
}
}
Output:
