// Helene Martin, CSE 142
// Prints different patterns using for loops

// goal: demonstrate how to use loop tables.
public class LoopPatterns {
	public static void main(String[] args) {
		sequence();
		dotsNums();
	}
	
	/*
	Mapping loop counter to number sequences
	17 13 9 5 1
	count	num	-4 * count	-4 * count + 21
	1		17		-4				17
	2		13		-8				13
	3		9		-12			9
	4		5
	5		1
	*/
	public static void sequence() {
		for (int count = 1; count <= 5; count++) {
			System.out.print(-4 * count + 21 + " ");
		}
		System.out.println();
	}
	
	/*
	Mapping complex patterns to loop counters
	....1
	...2
	..3
	.4
	5
	
	line	dots	line * -1	line * -1 +5
	1		4		-1				4
	2		3		-2				3
	3		2		-3
	4		1
	5		0
	
	*/
	public static void dotsNums() {
		for (int line = 1; line <= 5; line++) {
			for (int dots = 1; dots <= line * -1 + 5; dots++) {
				System.out.print(".");
			}
			System.out.println(line);
		}
	}
}