[BAEKJOON] No.2446 JAVA

별찍기 -9

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
	    Scanner sc = new Scanner(System.in);
	    int n  = sc.nextInt();

	    for(int i=0; i<n; i++) {
	    	for(int j=0; j<i; j++)System.out.print(" ");
	    	for(int k=n-i; k>0; k--) System.out.print("*");
	    	for(int m=(n-1)-i; m>0; m--) System.out.print("*");
	    	System.out.println();
	    }
	    for(int i=n-1; i>0; i--) {
	    	for(int j=i-1; j>0; j--)System.out.print(" ");
	    	for(int j=n-i+1; j>0; j--) System.out.print("*");
	    	for(int m=n-i; m>0; m--) System.out.print("*");
	    	System.out.println();
	    }
		sc.close();
	}
}