백준 10992 java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class bj10992
{
    public static void main(String[] args) throws IOException
    {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int N;
        int i, j;

        N = Integer.parseInt(br.readLine());

        for(i = N; i > 1; i--)
        {
            for(j = 0; j < i-1; j++)
            {
                System.out.print(" ");
            }
            System.out.print("*");
            if(i == N)
            {
                System.out.println();
                continue;
            }
            for(j = 0; j < (N-i)*2-1; j++)
            {
                System.out.print(" ");
            }
            System.out.print("*");
            System.out.println();
        }
        for(i = 0; i < 2*N-1; i++) {
            System.out.print("*");
        }
    }
}