In Java a (Refer to class diagram 7-1.) Declare the Account class and its instance variables. Then, code a constructor that assigns default values to these variables. The default value you assign to the customer variable should prevent a NullPointerException (hint: do not assign a default value of null to the customer variable). Write this code as concisely as possible.

Class diagram 7-1 b. (Refer to class diagram 7-1.) Code a constructor for the Account class that assigns values to the instance variables based on the values that are passed to it. The parameters of this constructor should be given the same names as the instance variables. c. (Refer to class diagram 7-1.) Write the code for the getType method. This method should simply return the value of the type instance variable. d. (Refer to class diagram 7-1.) Write the code for the creditAccount and debitAccount methods. The creditAccount method should add the amount thats passed to it to the balance instance variable, and the debitAccount method should subtract the amount thats passed to it from the balance instance variable. e. (Refer to class diagram 7-1.) Code a statement that calls the getFormattedBalance method and stores the String object thats returned in a variable named formattedBalance. Assume that an Account object named account has already been created in the calling class.

in your answers plaease lable answer for a answer for b ect ect

Account uber: int -custarer: Custaner pe: String balance: double setNuber (int) tgetNurberO: int +setCustaner (custaner) tgetCustaner (int): Custamer +set ype(String) getType) String set Ballance(doublle) get Balance): doble tget FonattedBalance String getCusta): String creditAocount (doible)