직각삼각형 출력하기

import java.util.Scanner; public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int n = sc.nextInt(); StringBuilder sb = new StringBuilder(); for (int i = 1; i <= n; i++) { for (int j = 1; j <= i; j++) { sb.append("*"); } sb.append("\n"); } System.out.print(sb.toString()); } }