我的循環保持循環也循環錯誤的東西？

Question

boolean test = true; //我的循環從這裏開始，我希望能夠在非事件被選中時循環// switch語句，我希望循環在顯示錯誤消息後返回到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的情況下，那麼你需要進行設置爲1。我猜Next.nextInt（）會給你1，2，但隨後3，然後4，等等。超過2的任何內容都會默認爲