Example: MatrixEqualityDeepEquals in Java

// MatrixEqualityDeepEquals
import java.util.Arrays;

public class Main {
    public static boolean areMatricesEqualDeepEquals(int[][] matrix1, int[][] matrix2) {
        // Step 1: Use Arrays.deepEquals to compare the 2D arrays
        // This method handles null checks and element-by-element comparison recursively.
        return Arrays.deepEquals(matrix1, matrix2);
    }

    public static void main(String[] args) {
        int[][] matrixA = {{1, 2, 3}, {4, 5, 6}};
        int[][] matrixB = {{1, 2, 3}, {4, 5, 6}};
        int[][] matrixC = {{1, 2, 3}, {4, 5, 9}}; // Different element
        int[][] matrixD = {{1, 2}, {4, 5, 6}}; // Different column count in row
        int[][] matrixE = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}; // Different row count

        System.out.println("Matrix A and Matrix B are equal: " + areMatricesEqualDeepEquals(matrixA, matrixB));
        System.out.println("Matrix A and Matrix C are equal: " + areMatricesEqualDeepEquals(matrixA, matrixC));
        System.out.println("Matrix A and Matrix D are equal: " + areMatricesEqualDeepEquals(matrixA, matrixD));
        System.out.println("Matrix A and Matrix E are equal: " + areMatricesEqualDeepEquals(matrixA, matrixE));
        System.out.println("null and matrix A are equal: " + areMatricesEqualDeepEquals(null, matrixA));
        System.out.println("null and null are equal: " + areMatricesEqualDeepEquals(null, null));
    }
}