Customer class that contains
firstName: String data field
lastName: String data field
address: String data field
age: int data field
The accessor and mutator methods for firstName, lastName, age, and address
id: int data field. The first Customer should have an id of 32000 and for any new Customer add 10.
Constructor that creates a Customer with the specified first name, last name, address, and age. Also, it should generate the Customer's id.
Override toString method. This method should return all details about this account (firstName, lastName, address, id, and age)
Override equals method. This method should return true if the calling object is equal to the other object