//sample tester
class ArrayTests {
    public static void main(String [] args) {
	//test 1D array methods
	int [] arr = {3, -2, 1}; //make sure you know initializer list syntax
        Arrays1D.getPositiveElements(arr);
	boolean hasEqual = Arrays1D.hasAdjacentEqual(arr);
	System.out.println("Equal: " + hasEqual);
	int [] arr1 = {2, 3, 4};
	Point [] pt = Arrays1D.getPoints(arr1, arr1);

	//test 2d array methods
	double [][] brr = {{3, 2, 1}, {1, 2, 3}}; //make sure you know initializer list syntax
        Arrays2D.printArray(brr);
	Arrays2D.printPattern(5);
	//test the corner cases
	Arrays2D.printPattern(1);
	Arrays2D.printPattern(1);	
    }
}