Overloading the “computeBill” method Program plan: Filename: “Billing.java” Define the “Billing” class Define the main method. Call the “computeBill” method with single parameter. Call the “computeBill” method with two parameters. Call the “computeBill” method with three parameters. Define the “computeBill” method Calculate the tax value by multiplying “0.08” and “price” value. Return the total due. Define the “computeBill” method Calculate the tax value by multiplying “0.08” and “price” value. Return the total due. Define the overloaded “computeBill” method Calculate the tax value by multiplying “0.08”, “quantity”, and “price” value. Return the total due. Define the “computeBill” method Calculate the tax value by multiplying “0.08”, “quantity”, and “price” value. Return the total due by subtracting the coupon value and tax value.

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Add a new class Checking Account that inherits from the BankAccount class, and has a double instance variable overdraftLimit in addition to the variables inherited from the superclass. Create a constructor for the Checking Account class that takes in the account number, account holder name, initial balance, account type and overdraft limit as input, and uses the super keyword to call the constructor of the superclass, passing in the account number, account holder name and initial balance, account type. Re-write the withdraw() method in the CheckingAccount class so that it first checks if the withdrawal amount is less than the current balance plus the overdraft limit. If it is, the withdrawal is allowed and the balance is updated. If not, the method should return an error message "Insufficient funds". Create a new method displayOverdraft Limit() that returns the overdraft limit of the Checking Account. In the BankAccountTest class, create a new object of type Checking Account with…

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Chapter 4, Problem 2PE

Program Plan Intro

Overloading the “computeBill” method

Program plan:

Filename: “Billing.java”

Define the “Billing” class

Define the main method.

Call the “computeBill” method with single parameter.

Call the “computeBill” method with two parameters.

Call the “computeBill” method with three parameters.

Define the “computeBill” method

Calculate the tax value by multiplying “0.08” and “price” value.

Return the total due.

Define the “computeBill” method

Calculate the tax value by multiplying “0.08” and “price” value.

Return the total due.

Define the overloaded “computeBill” method

Calculate the tax value by multiplying “0.08”, “quantity”, and “price” value.

Return the total due.

Define the “computeBill” method

Calculate the tax value by multiplying “0.08”, “quantity”, and “price” value.

Return the total due by subtracting the coupon value and tax value.

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Add a new class Checking Account that inherits from the BankAccount class, and has a double instance variable overdraftLimit in addition to the variables inherited from the superclass. Create a constructor for the Checking Account class that takes in the account number, account holder name, initial balance, account type and overdraft limit as input, and uses the super keyword to call the constructor of the superclass, passing in the account number, account holder name and initial balance, account type. Re-write the withdraw() method in the CheckingAccount class so that it first checks if the withdrawal amount is less than the current balance plus the overdraft limit. If it is, the withdrawal is allowed and the balance is updated. If not, the method should return an error message "Insufficient funds". Create a new method displayOverdraft Limit() that returns the overdraft limit of the Checking Account. In the BankAccountTest class, create a new object of type Checking Account with…

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