do while循环跳过用户输入选项时出现问题

Question

这应该是一个从用户那里获取密码并根据各种参数进行检查的程序。

我遇到了do while循环的问题，它打印出来：

Please enter your password.
Error. Password is too short. Try again.

然后在选择选项

后打印出来

1. Enter your own password for verification

程序应该允许用户在打印任何错误消息之前输入密码。

首次使用本网站。对此的任何帮助将不胜感激。

    import java.security.SecureRandom;
import java.util.*;

public class CC_CA2
{


 // Main Method
   public static void main(String[] args)
   {      
      Scanner keyboardIn = new Scanner(System.in);  //Create Scanner object

      String[] data = {"123456","password","12345","12345678","qwerty","123456789","1234","baseball","dragon","football","1234567","monkey","letmein","abc123","111111","mustang","access","shadow","master","michael"}; 
      String correct;

      int numLetterCheck = 0;
      int option;

      boolean found = false;
      boolean check; 

      boolean digitFound = false;
      boolean letterFound = false;     


      //Menu
      System.out.println("Welcome to the password checker.");
      System.out.println("Would you like to:");
      System.out.println("1. Enter your own password for verification.");
      System.out.println("2. Have an easy to remember random password generated for you.");
      option = keyboardIn.nextInt();


      if (option==1)
      {

         do
         {  
            check = true;
            found=false;

            System.out.println("Please enter your password.");  // get user password
            correct = keyboardIn.nextLine();




            if (correct.length()<8)  // 1. check password > 8 characters
            {
               System.out.println("Error. Password is too short. Try again.");
               check=false;
               continue; 
            }

            if (correct.contains(" ")) //2. check if password contains any spaces
            {
               System.out.println("Error. Password contains a space. Try again.");
               check=false;
               continue; 
            }


            for(int i = 0; i < data.length; i++) // 3. check common passwords
            {
               if(data[i].equals(correct)) //if match found
               {           
                  found = true; //remember that it is found               
               }          
            }

            if(found) //if found is true
            {
               System.out.println("Error. This is a common password. Try again.");
               check=false;
               continue; 
            }



            for (char ch : correct.toCharArray())  // 4. Make sure password contains at least one letter and one number

            {
               if (Character.isDigit(ch))
               {
                  digitFound = true;
               }
               if (Character.isLetter(ch))
               {
                  letterFound = true;
               }

               if (digitFound && letterFound)
               {
                  numLetterCheck = 0;
               }
               else
               {
                  numLetterCheck = 1;               
               }
            } 

            while (numLetterCheck == 1)
            {

               letterFound=false;
               digitFound=false;

               System.out.println("Error. Password must contain at least one letter and one number. Try again.");
               correct = keyboardIn.nextLine();

                           }         


         }while(check == false);
      }
}}