package com.javaex.practice01; import java.util.Scanner; public class Problem02 { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); System.out.println("숫자를 입력하세요:"); int num = scanner.nextInt(); for (int i = 1; i <= num; i++) { for (int j = 1; j <= i; j++) System.out.print(i); System.out.println(); } } }