if statement written wrong

in this program i have multiple if statements similar to this and they print an output just fine. I am new to programming, and have tried multiple times to fix but don't actually know whats wrong, as their are no compile errors.

public class Game
{
  public static void main(String[] args)
  {
    Scanner keyboard = new Scanner(System.in);
    System.out.println("Enter Ticket");
    String ticket = keyboard.nextLine();

    if(ticket.toUpperCase().startsWith("AB")&&(ticket.length() == 8)) 
    {
      if(ticket.toUpperCase().charAt(6)=='P'&&(!(ticket.charAt(7)=='1'))&& (ticket.toUpperCase().endsWith("V")))
      {
        int thirdval = ticket.charAt(ticket.length()-6);
        int fourthval = ticket.charAt(ticket.length()-5);
        int fifthval = ticket.charAt(ticket.length()-4);
        double third = thirdval - '0';
        double fourth = fourthval - '0';
        double fifth = fifthval - '0';
        fourth = fourth/10;
        fifth = fifth/1;
        double maths = (third + fourth + fifth)*100;
        double increase = (maths * 0.15) + maths;
        double p = (increase * 0.25) + increase;
        double v = increase + 20;

        System.out.println("Cost of the ticket is $" + v);
      }
     }
   }
}