3월8일(별찍기04)

package day0308;

import java.util.Scanner;
public class Starsprint04 {

    public static void main(String[] args) {
       Scanner scanner = new Scanner(System.in);
       
       System.out.println("별찍기 4번");
       
       System.out.println("출력 줄 수 입력");
       System.out.print(">");
       int userNum = scanner.nextInt();
       
       for(int i = 1; i <= userNum; i++) {
           String stars = new String();
           
           //공백을 담당하는  j for문
           for(int j = 1; j <= i -1; j++ ){
              stars += " "; 
           }