// CSE 142 Lecture 3
// Static methods, Data Types, Expressions, Variables

// Some examples using for loops that we looked at in class.
public class LoopExamples {
	public static void main(String[] args) {
		triangle();
		System.out.println();
		numTriangle();
		System.out.println();
		squares();
		System.out.println();
		blastoff();
		System.out.println();
		dots();
		System.out.println();
		dotsNums();
	}
	
	// Prints the following output
	// *
	// **
	// ***
	// ****
	// *****
	public static void triangle() {
		for (int line = 1; line <= 5; line++) {
			for (int j = 1; j <= line; j++) {
				System.out.print("*");
			}
			System.out.println();
		}
	}
	
	// Prints the following output
	// 1
	// 22
	// 333
	// 4444
	// 55555
	public static void numTriangle() {
		for (int line = 1; line <= 5; line++) {
			for (int j = 1; j <= line; j++) {
				System.out.print(line);
			}
			System.out.println();
		}
	}
	
	// Print the squares of 1 through 6 formatted like
	// 1 squared = 1
	public static void squares() {
		for (int i = 1; i <= 6; i++) {
			System.out.println(i + " squared = " + i * i);
		}
	}
		
	// Prints the following lines.
	// T-minus 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blastoff!
	// The end.
	public static void blastoff() {
		// We discussed that these expressions would also work for our loop test
		// i > 0
		// i != 0
		System.out.print("T-minus ");
		for (int i = 10 ; i >= 1; i--) {
			System.out.print(i + ", ");
		}
		System.out.println("blastoff!");
		System.out.println("The end.");
	}

	// Prints the following output.		
	// ....1
	// ...2
	// ..3
	// .4
	// 5
	public static void dots() {
		// line	dots	line * -1	line * -1 + 5
		// 1		4		-1				4
		// 2		3		-2				3
		// 3		2		-3				2
		// 4		1		-4				1
		// 5		0		-5				0
		for (int line = 1; line <= 5; line++) {
			for (int dot = 1; dot <= line * -1 + 5; dot++) {
				System.out.print(".");
			}
			System.out.println(line);
		}
	}
	
	// Prints the following output.
	// ....1
	// ...22
	// ..333
	// .4444
	// 55555
	public static void dotsNums() {
		for (int line = 1; line <= 5; line++) {
			for (int dot = 1; dot <= line * -1 + 5; dot++) {
				System.out.print(".");
			}
			for (int num = 1; num <= line; num++) {
				System.out.print(line);
			}
			System.out.println();
		}
	}
		
	// Loops infinitely because we update j but test i
	public static void infiniteLoop1() {
		for (int i = 1; i <= 5; i++) {
			for (int j = 1;
			                i <= 10; 
								          j++) {
				System.out.print("*");
			}
			System.out.println();
		}
	}
	
	// Loops infinitely because we update i but test j
	public static void infiniteLoop2() {
		for (int i = 1; i <= 5; i++) {
			for (int j = 1;
			                j <= 10; 
								          i++) {
				System.out.print("*");
			}
			System.out.println();
		}
	}
}