142 : 반복제어문3 - 형성평가3

Java

import java.util.Scanner;
 
public class Main {
    public static void main (String[] arg) {
        Scanner sc = new Scanner(System.in);
        int max = sc.nextInt();
 
        // 증가 삼각형
        for (int i=0; i<max; i++) {
            for (int j=0; j<=i; j++)
                System.out.print("*");
            System.out.print('\n');
        }
 
        // 감소 삼각형
        for (int i=0; i<(max-1); i++) {
            for (int j=(max-1); i<j; j--)
                System.out.print("*");
            System.out.print('\n');
        }
    }
}