public class SquareMatrixCheck {
public static boolean isSquareMatrix(int[][] matrix) {
// Check if the number of rows equals the number of columns
int rows = matrix.length; // Number of rows
for (int[] row : matrix) {
if (row.length != rows) {
return false; // If any row's length is not equal to the number of rows = not square
}
}
return true; // All rows have the same length as the number of rows
}
public static void main(String[] args) {
int[][] matrix = {
{5, 8, 9, 10},
{1, 4, 6, 13},
{7, 3, 0, 18},
{6, 8, 9, 20}
};
if (isSquareMatrix(matrix)) {
System.out.println("The matrix is a square matrix.");
} else {
System.out.println("The matrix is not a square matrix.");
}
}
}
/*
run:
The matrix is a square matrix.
*/
