题解 | #HTTP状态码#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int num = in.nextInt();
            switch(num){
                case 200:
                System.out.println("OK");
                break;
                case 202:
                System.out.println("Accepted");
                break;
                case 400:
                System.out.println("Bad Request");
                break;
                case 403:
                System.out.println("Forbidden");
                break;
                case 404:
                System.out.println("Not Found");
                break;
                case 500:
                System.out.println("Internal Server Error");
                break;
                case 502:
                System.out.println("Bad Gateway");
                break;
            }
        }
    }
}