public class Printing {

    public static void printStars(int amount) {
        // 39.1
        // you can print one star with the command
        // System.out.print("*");
        // call this command amount times

        int star = 0;
        while (star < amount){
        System.out.print("*");
        star ++;
       }
    }

    public static void printSquare(int sideSize) {
        // 39.2
    for (int i= 0; i< sideSize; i++){
            for (int j=0; j<sideSize; j++){
                printStars(1);
            }
            System.out.println("");
    }
    }

    public static void printRectangle(int width, int height) {
        // 39.3

    for (int i = 0; i< height; i++){
        for(int j=0; j<width; j++){
            printStars(1);
        }
        System.out.println("");
    }
    }

    public static void printTriangle(int size) {
        // 39.4

    for (int i= 0; i<=size; i++){

        printStars(i);
        System.out.println("");
    }
    }

    public static void main(String[] args) {
        // Tests do not use main, yo can write code here freely!
        // if you have problems with tests, please try out first
        // here to see that the printout looks correct

        printStars(3);
        System.out.println("\n---");  // printing --- to separate the figures
        printSquare(4);
        System.out.println("\n---");
        printRectangle(5, 6);
        System.out.println("\n---");
        printTriangle(3);
        System.out.println("\n---");
    }

}