Question

I have a problem to draw a square ASCII with the size limit in 20 character (size of ‘square’), this is my code, I’ve tested and it works but when I put the number more than 20 it’s display an error, pls help, thanks.

class Main {
    public static void printSquare(int size) {
        int line = 1;

        while (line <= size) { // For each line of square
            int width = size; // width of square segment
            int i = 1; // display square segment

            while (i <= width && size <= 20) {
                System.out.print("*");
                i = i + 1;
            }

            System.out.println(); // Newline
            line = line + 1;
        }
    }
}

Answer 1

The problem is that you’ll never print the * if the size is greater than 20. A better way to restrict it to 20 would be to limit the size before the loop.

public static void printSquare(int size) {
    if(size > 20) {
       size = 20;
    }
    int line = 1;

and then edit

while (i <= width && size <= 20) {

to

while (i <= width) {