Computer scienceProgramming languagesJavaCode organizationObject-oriented programmingClass hierarchiesBuilding class hierarchies

Keyword "super"

Theory

Bank account

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You are given a class named BankAccount. The class has two fields: number and balance.

Define two classes which inherit from the BankAccount:

  • CheckingAccount containing the double field fee.
  • SavingsAccount containing the double field interestRate.

Each new class should have a constructor with three parameters to initialize all fields:

  • CheckingAccount(String number, Long balance, double fee)
  • SavingsAccount(String number, Long balance, double interestRate)

Do not forget to invoke the superclass constructor when creating objects.

Do not make the fields private.

Write a program in Java 17
class BankAccount {

protected String number;
protected Long balance;

public BankAccount(String number, Long balance) {
this.number = number;
this.balance = balance;
}
}
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