class L31 {

	public static void main(String[] args) {

		int[] arr1 = {8, 0, -3, 4};
		int count = Utility.numPositive(arr1);
		System.out.println("num pos: " + count);

		int[] arr2 = Utility.clone(arr1);

		Utility.printArray(arr1);
		Utility.printArray(arr2);

		int[][] matrix1 = {{1,2,3},{4,5,6}};
		int[][] matrix2 = Utility.clone(matrix1);

		Utility.printMatrix(matrix1);
		Utility.printMatrix(matrix2);

		int[] arr3 = Utility.reverseArray(arr1);
		Utility.printArray(arr3);
	}

}