This is my code and I need to add a verification of input loop to this so that t

Question

This is my code and I need to add a verification of input loop to this so that the user only selects the cars that I have given them. This code is done through textpad and java.

import java.util.Scanner;

public class Worksheet_7
{ public static void main(String[]args)
   { Scanner Fred = new Scanner(System.in);
   System.out.println("Today we practice using switch statements ");
   char Ans;
   char DoMore = 'Y';
   while(DoMore=='Y' || DoMore=='y')
   {
       // switch statement code goes here
   System.out.println("What kind of card do you drive?");
   System.out.println("(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru");
   String Word = Fred.next();
   Ans=Word.charAt(0);
   switch(Ans)
   {   case 'C' : System.out.println("Chevy - the heartbeat of America");
   System.out.println("Chevy is awesome");
      break;
      case 'F' : System.out.println("Ford tough");
      System.out.println("Chevy is better");
      break;
      case 'B' : System.out.println("Buick - Luxury you can afford");
      System.out.println("Chevy is better");
      break;
      case 'M' : System.out.println("Honda - Always dependable");
      System.out.println("Chevy is better");
      break;
      case 'T' : System.out.println("Toyota - I have a toyota");
      break;
      case 'S' : System.out.println("Subaru - my friend has one");
      break;
      case 'H' : System.out.println("Need a better car....?");
      System.out.println("Buy a Chevy");
      break;
    } // switch
    System.out.println("Try again? (Y/N)");
    Word = Fred.next();
    DoMore = Word.charAt(0);
} // end loop
    System.out.println(" done for now..");
} // end main
} // end class

Explanation / Answer

import java.util.Scanner;

public class Worksheet_7
{ public static void main(String[]args)
     { Scanner Fred = new Scanner(System.in);
     System.out.println("Today we practice using switch statements ");
     char Ans;
     char DoMore = 'Y';
     while(DoMore=='Y' || DoMore=='y')
     {
         // switch statement code goes here
     System.out.println("What kind of card do you drive?");
     System.out.println("(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru");
     String Word = Fred.next();
     Ans=Word.charAt(0);
     //VERFICATION CODE...
     while(true )
     {
         if(Ans== 'H'||Ans== 'S' ||Ans== 'T' ||Ans== 'M' ||Ans== 'B' ||Ans== 'C' ||Ans== 'F')
         {
         break;
         }
     System.out.println("Error: Please enter the car that is in the list");
     System.out.println("What kind of card do you drive?");
     System.out.println("(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru");
     Word = Fred.next();
     Ans=Word.charAt(0);
     }
     switch(Ans)
     {    case 'C' : System.out.println("Chevy - the heartbeat of America");
     System.out.println("Chevy is awesome");
         break;
         case 'F' : System.out.println("Ford tough");
         System.out.println("Chevy is better");
         break;
         case 'B' : System.out.println("Buick - Luxury you can afford");
         System.out.println("Chevy is better");
         break;
         case 'M' : System.out.println("Honda - Always dependable");
         System.out.println("Chevy is better");
         break;
         case 'T' : System.out.println("Toyota - I have a toyota");
         break;
         case 'S' : System.out.println("Subaru - my friend has one");
         break;
         case 'H' : System.out.println("Need a better car....?");
         System.out.println("Buy a Chevy");
         break;
     } // switch
     System.out.println("Try again? (Y/N)");
     Word = Fred.next();
     DoMore = Word.charAt(0);
} // end loop
     System.out.println(" done for now..");
} // end main
} // end class

OUTPUT:-

run:
Today we practice using switch statements

What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
F
Ford tough
Chevy is better
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
C
Chevy - the heartbeat of America
Chevy is awesome
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
B
Buick - Luxury you can afford
Chevy is better
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
M
Honda - Always dependable
Chevy is better
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
H
Need a better car....?
Buy a Chevy
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
T
Toyota - I have a toyota
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
S
Subaru - my friend has one
Try again? (Y/N)
Y
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
P
Error: Please enter the car that is in the list
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
G
Error: Please enter the car that is in the list
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
R
Error: Please enter the car that is in the list
What kind of card do you drive?
(F)ord, (C)hevy, (B)uick,(M)azda,(H)onda,(T)oyota,(S)ubaru
F
Ford tough
Chevy is better
Try again? (Y/N)
N

done for now..
BUILD SUCCESSFUL (total time: 59 seconds)

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