我的循环保持循环也循环错误的东西？

Question

boolean test = true; //我的循环从这里开始，我希望能够在非事件被选中时循环// switch语句，我希望循环在显示错误消息后返回到case 1 。

while (test) 

Proceed = Next.nextInt(); 
switch (Proceed) { 

    case 1:// Proceed 
     System.out.println("Please enter your 5 digit pin below."); 
     Scanner Pin = new Scanner(System.in); 
     int Pincode = Pin.nextInt(); 
     if (Pincode > 9999 && Pincode < 99999) { 
      System.out.println("1)Display Balance"); 
      System.out.println("2)Withdraw Cash"); 
      System.out.println("3)Other services"); 

     } else { 
     System.err 
        .println("Sorry,the pin you enterd was incorrect\nyour card is being ejected\nPlease wait..."); 
     } 
     test=false; 
     break; 

    case 2:// Return Card 
     System.err.println("Your card is being ejected.\n Please Wait.."); 
     test=false; 
     break; 

    default: // i want to display this message and send it back to case 1. when i do the method i'm doing it just keeps spamming this message. 
     System.err.println("Sorry your request could not be processed.Please re-try"); 
     test=true; 
} 

Answer 1

如果你想送它回到1的情况下，那么你需要进行设置为1。我猜Next.nextInt（）会给你1，2，但随后3，然后4，等等。超过2的任何内容都会默认为