打印直角三角形

import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            int n = sc.nextInt();
            for(int j = 0; j < n; ++j){
                for(int i = 0; i < j + 1; ++i){
                    System.out.printf("* ");
                }
                System.out.println();
            }
        }
    }
}