/** P3.2. Adding a method public void addInterest(double rate) to the BankAccount32 class which adds interest at the given rate. */ public class BankAccount32 { //instance variable private double balance ; /** Constructor: initializes balance to zero */ public BankAccount32() { balance = 0 ; } /** Constructor: initializes balance to given initialBalance paramter @param initialBalance */ public BankAccount32(double initialBalance) { balance = initialBalance ; } /** Adds interest to the BankAccount balance at the given rate @param rate the percent of interest to add HINT: don't forget to convert percent to fraction first! */ //-----------Start below here. To do: approximate lines of code = 2 // Write the addInterest method //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. /** Returns the balance @return the balance */ public double getBalance() { return balance ; } /** Deposits amount of money to the account @param amount the amount of money to put in */ public void deposit(double amount) { balance = balance + amount ; } /** Withdraws amount of money to the account @param amount the amount of money to take out */ public void withdraw(double amount) { double newBalance = balance - amount ; balance = newBalance ; } /** Returns a string representation of the account @return the string representation */ public String toString() { return "BankAccount[balance = " + balance + "]" ; } }

/** P3.2. Adding a method public void addInterest(double rate) to the BankAccount32 class which adds interest at the given rate. */ public class BankAccount32 { //instance variable private double balance ; /** Constructor: initializes balance to zero */ public BankAccount32() { balance = 0 ; } /** Constructor: initializes balance to given initialBalance paramter @param initialBalance */ public BankAccount32(double initialBalance) { balance = initialBalance ; } /** Adds interest to the BankAccount balance at the given rate @param rate the percent of interest to add HINT: don't forget to convert percent to fraction first! */ //-----------Start below here. To do: approximate lines of code = 2 // Write the addInterest method //-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions. /** Returns the balance @return the balance */ public double getBalance() { return balance ; } /** Deposits amount of money to the account @param amount the amount of money to put in */ public void deposit(double amount) { balance = balance + amount ; } /** Withdraws amount of money to the account @param amount the amount of money to take out */ public void withdraw(double amount) { double newBalance = balance - amount ; balance = newBalance ; } /** Returns a string representation of the account @return the string representation */ public String toString() { return "BankAccount[balance = " + balance + "]" ; } }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

/**

P3.2.

Adding a method

public void addInterest(double rate)

to the BankAccount32 class which adds interest at the given rate.

public class BankAccount32

{

//instance variable

private double balance ;

/**

Constructor: initializes balance to zero

public BankAccount32()

{

balance = 0 ;

}

/**

Constructor: initializes balance to given initialBalance paramter

@param initialBalance

public BankAccount32(double initialBalance)

{

balance = initialBalance ;

}

/**

Adds interest to the BankAccount balance at the given rate

@param rate the percent of interest to add

HINT: don't forget to convert percent to fraction first!

//-----------Start below here. To do: approximate lines of code = 2

// Write the addInterest method

//-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.

/**

Returns the balance

@return the balance

public double getBalance()

{

return balance ;

}

/**

Deposits amount of money to the account

@param amount the amount of money to put in

public void deposit(double amount)

{

balance = balance + amount ;

}

/**

Withdraws amount of money to the account

@param amount the amount of money to take out

public void withdraw(double amount)

{

double newBalance = balance - amount ;

balance = newBalance ;

}

/**

Returns a string representation of the account

@return the string representation

public String toString()

{

return "BankAccount[balance = " + balance + "]" ;

}

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