Triangle of N x N Dollars - Drawing Figures with Loops

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int dollars = Integer.parseInt(input.nextLine());

        for (int row = 0; row < dollars; row++) {
            System.out.print("$");
            System.out.println(repeatStr(" $", row));

        }
    }
    public static String repeatStr(String str, int count) {
        StringBuilder dollars = new StringBuilder();
        for (int i = 0; i < count; i++) {
            dollars.append(str);
        }
        return dollars.toString();
    }
}