java-scuola/Matrici/Identita.java

31 lines
768 B
Java

public class Identita {
public static void main(String[] args) {
int[][] matrice =
{
{1, 0, 0, 0, 0},
{0, 1, 0, 0, 0},
{0, 0, 1, 0, 0},
{0, 0, 0, 1, 0},
{0, 0, 0, 0, 1}
};
System.out.println(cercaIdentita(matrice));
}
private static boolean cercaIdentita(int[][] matrice) {
for (int i = 0; i < matrice.length; i++) {
for (int j = 0; j < matrice[0].length; j++) {
if(matrice[i][i] != 1) {
return false;
}
if(i != j && matrice[i][j] != 0) {
return false;
}
}
}
return true;
}
}