[백준] 별 찍기 정리

별 그림 

N=5 

 

*
**
***
****
*****

코드

package star;

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

public class star_1 {

    public static void main(String[] args)throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int N = Integer.parseInt(st.nextToken());


        for (int i=1; i<=N; i++){
            for(int j=0;j<i;j++){
                System.out.print("*");
            }
            System.out.println("");

        }

    }
}

별 그림 

N=5

 

    *
   **
  ***
 ****
*****

코드

package star;

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

public class start_2 {
    public static void main(String[] arg)throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int N = Integer.parseInt(st.nextToken());


        for (int i=1; i<=N; i++){ //빈칸 4개 *1개
            for(int j=N-i;j>0;j--) System.out.print(" ");
            for(int k=0;k<i;k++) System.out.print("*");
            System.out.println("");
        }




    }
}

별 그림 

N=5

 

*****
****
***
**
*

 

코드

package star;

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

public class start_3 {
    public static void main(String[] arg)throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int N = Integer.parseInt(st.nextToken());


        for (int i=N; i>0; i--){ //빈칸 4개 *1개
            for(int k=0;k<i;k++) System.out.print("*");
            System.out.println("");
        }




    }
}

별 그림 

N=5

 

*****
 ****
  ***
   **
    *

 

코드

package star;

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

public class start_4 {
    public static void main(String[] arg)throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int N = Integer.parseInt(st.nextToken());


        for (int i=N; i>0; i--){ //빈칸 4개 *1개
            for(int j=0;j<N-i; j++) System.out.print(" ");
            for(int k=0;k<i;k++) System.out.print("*");

                System.out.println("");
        }




    }
}

별 그림 

N=5

 

    * 
   *** 
  ***** 
 ******* 
********* 

 

 

코드

package star;

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

public class start_5 {
    public static void main(String[] arg)throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(br.readLine());
        int N = Integer.parseInt(st.nextToken());


       for(int i =1; i<=N; i++){ //N번 반복
           for(int j=0; j<N-i;j++) System.out.print(" ");
           for(int k=0;k<(2*N-1)-2*(N-i);k++) System.out.print("*");
           for(int l=0; l<1;l++) System.out.print(" ");
           System.out.println();

       }



    }
}

 

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