从控制台读取数字并使用开关检查值

import java.util.Scanner;

/*
时代Java公众号 提 供
*/

public class Main

{


  static Scanner sc = new Scanner(System.in);


  public static void main(String[] args)

  {


    System.out.print("Enter the error code: ");

    int err = sc.nextInt();


    String msg;

    /* 
     来自 
    *nowjava.com*/

    switch (err)

    {

      case 1:

        msg = "1.";

        break;

      case 2:

        msg = "2.";

        break;

      case 3:

        msg = "3.";

        break;

      case 4:

        msg = "4.";

        break;

      case 5:

        msg = "5.";

        break;

      case 6:

        msg = "6.";

        break;

      case 7: