Easy 17

import java.util.Scanner;

public class Easy17 {
    public static void main(String[] args) {

        // get input
        Scanner s = new Scanner(System.in);
        System.out.print("  Triangle creator\n--------------------\nEnter a height: ");
        int height = s.nextInt();
        System.out.print("Reversed? (true/false) : ");
        boolean reverse = (s.nextBoolean());
        System.out.print("Right justified? (true/false) : ");
        boolean rjust = (s.nextBoolean());

        if (!reverse) {
            // output triangle regularly
            int length = 1;
            for (int i=0;i<height;i++) {
                if (rjust) for (int j=0;j<Math.pow(2,height-1)-length;j++) System.out.print(" ");
                for (int j=0;j<length;j++) System.out.print("@");
                length *= 2;
                System.out.println();
            }
        } else {
            // output triangle in reverse
            int length = (int)Math.pow(2, height-1);
            for (int i=0;i<height;i++) {
                if (rjust) for (int j=0;j<Math.pow(2,height-1)-length;j++) System.out.print(" ");
                for (int j=0;j<length;j++) System.out.print("@");
                length /= 2;
                System.out.println();
            }
        }
    }
}