// Helene Martin, CSE 142
// Several for loop examples
public class ForLoops {
	public static void main(String[] args) {
		// demonstrates basic for loop syntax.  Put a stop sign 
		// on this line and run with debugger to see how for
		// loops are executed
		for (int i = 1; 
		i <= 7; 
		i+=2) {
			System.out.println("Hi");
		}
		
		squares();
		lantern();
		temps();
		blastoff();
		grid();
		mult();
		triangle();
	}
	
	// prints the first 12 squares
	public static void squares() {
		for (int i = 1; i <= 12; i++) {
			System.out.println(i + " squared = " + i * i);
		}
		/*System.out.println("1 squared = " + 1 * 1);
		System.out.println("2 squared = " + 2 * 2);
		System.out.println("3 squared = " + 3 * 3);
		System.out.println("4 squared = " + 4 * 4);
		System.out.println("5 squared = " + 5 * 5);
		System.out.println("6 squared = " + 6 * 6);*/
	}
	
	// displays a paper lantern image
	public static void lantern() {
		System.out.println("+----+");
		for (int i = 1; i <= 2; i++) {
			System.out.println("\\    /");
	    	System.out.println("/    \\");
		}
		System.out.println("+----+");
	}
	
	// converts degrees centigrade to farenheight
	public static void temps() {
		int highTemp = 5;
		for (int i = -3; i <= highTemp / 2; i++) {
			System.out.print(i * 1.8 + 32 + " ");
		}
		System.out.println();
	}
	
	// display the following text using a loop:
	// T-minus 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blastoff!
	public static void blastoff() {
		System.out.print("T-minus ");
		for (int i = 10; i >= 1; i--) {
			System.out.print(i + ", ");
		}
		System.out.println("blastoff!");
	}
	
	/* display the following grid of stars using for loops:
	 	**********
		**********
		**********
		**********
		**********
	*/
	public static void grid() {
		for (int row = 1; row <= 5; row++) {
			for (int col = 1; col <= 10; col++) {
				System.out.print("*");
			}
			System.out.println();
		}
	}
	
	// displays a multiplication table 
	public static void mult() {
		for (int row = 1; row <= 5; row++) {
			for (int col = 1; col <= 10; col++) {
				System.out.print(row * col + "\t);
			}
			System.out.println();
		}
	
	}
}