In Java a (Refer to class diagram 7-1.) Declare the Account class and its instan

Question

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.

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)

Explanation / Answer

//The class

// answer for a -- assigning default values to instance variables..

Public Account(){

this.number = 1230;

this.customer = new Customer () ;

this.type = "savings"

this.balance = 100;

}

// Answer for b -- parameterised constructor

Public Account (int number, Customer customer, String type, double balance){

this.number = number ;

this.customer =customer ;

this.type = type ;

this.balance = balance ;

}

// answer for c

String getType (){

return type;

}

// answer for d

void creditAccount(double amount){

this.balance = balance + amount ;

}

void debitAccount(double amount)

this.balance = balance - amount ;

}

// answer for e

String formattedBalance = account.getFormattedBalance();

// constructor name should be same as the class name

// a -- defualt constructor b-- parameterised constructor

// both can be defined inside a single class

// 'this' refering the instance variable

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