This program gets you to create three methods, one for white-spaces and one for stars. The third method combines the other two to create Christmas tree shapes.
My Code
public class PrintingLikeBoss {
// copy or rewrite the method of Assignment 39.1 here
public static void printStars(int amount) {
while (amount > 0) {
System.out.print("*");
amount--;
}
System.out.println("");
}
public static void printWhitespaces(int amount) {
// 40.1
while (amount > 0) {
System.out.print(" ");
amount--;
}
}
public static void printTriangle(int size) {
// 40.2
int star = 1;
int tick = size;
while (tick >= star) {
printWhitespaces(size - 1);
printStars(star);
size--;
star++;
}
}
public static void xmasTree(int height) {
// 40.3
int stars = 1;
while (height > 0) {
printWhitespaces(height -1);
printStars(stars);
stars += 2;
height--;
}
printWhitespaces(stars / 2 - 2);
printStars(3);
printWhitespaces(stars / 2 - 2);
printStars(3);
}
public static void main(String[] args) {
// Tests do not use main, yo can write code here freely!
printTriangle(5);
System.out.println("---");
xmasTree(4);
System.out.println("---");
xmasTree(10);
}
}
Model Code
public class PrintingLikeBoss {
// copy or rewrite the method of Assignment 39.1 here
public static void printStars(int amount) {
int printed = 0;
while (printed < amount) {
System.out.print("*");
printed = printed + 1;
}
System.out.println("");
}
public static void printWhitespaces(int amount) {
// 40.1
int i = 0;
while (i < amount) {
System.out.print(" ");
i++;
}
}
public static void printTriangle(int size) {
// 40.2
int i = 1;
while (i <= size) {
printWhitespaces(size - i);
printStars(i);
i++;
}
}
public static void xmasTree(int height) {
// 40.3
int i = 1;
while (i <= height) {
printWhitespaces(height - i);
printStars(i + (i - 1));
i++;
}
// the stand:
printWhitespaces(height - 2);
printStars(3);
printWhitespaces(height - 2);
printStars(3);
}
public static void main(String[] args) {
// Tests do not use main, yo can write code here freely!
printTriangle(5);
System.out.println("---");
xmasTree(4);
System.out.println("---");
xmasTree(10);
}
}Comments
Mine is very messy compared to the model solution.