Design a class In java RailwayTicket with following description:Instance variables$/$data members:String nameTo store the name of the customerString coachTo store the type of coach customer wants to travellong mobnoTo store customer $\text{'}$s mobile numberint amtTo store basic amount of ticketint totalamtTo store the amount to be paid after updating the original amountMember methods:void accept $0)$void update$()$To take input for name, coach, mobile number and amount.To update the amount as per the coach selected $($extra amount to be added in the amount as follows$)$Type of CoachesAmountFirst ACSecond ACThird ACSleeper$700500250$None$-$ To display all details of a customer such as name, coach, total amount and mobile number.void display$)$Write a main method to create an object of the class and all the above member methods.