첫 게시글입니다.

첫 게시글입니다

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

public class Main {
  
    public static void main(String[] args) throws IOException {
    
    BufferedReader br;
    br = new BufferedReader(new InputStreamReader(System.in));
    String greeting;
    boolean flag = true;
    System.out.println("첫 인사를 해보아요 : ");
        
        while(flag) {
        greeting = br.readLine();
           switch (greeting) {
                case "Hello World" : 
                        System.out.println("Welcome !");
                        flag = false;
                        break;
                 default : System.out.println("retry !");
            } // end switch
        } // end while
    br.close();
    }
}