In Java pls
////////////////////////////////////////
and here is the Giftcard.java
copyable
/////////////////////////////////////////////////////////////////////
/*
* GiftCard.java
*
* Lab 10 Part 1
*
* Authors: Samantha Smith, you
*/
public class GiftCard
{
// Instance Variables
// TODO: balance
// Constructors
/**
* GiftCard(double initialBalance)
*
* Initialize a GiftCard object with a pre-defined amount of
money.
*
* @param initialBalance double The desired starting balance
*/
public GiftCard(double initialBalance) {
setBalance(initialBalance);
}
/**
* GiftCard()
*
* Initialize a GiftCard object with a balance of $0.00.
*/
public GiftCard() {}
// Instance Methods
/**
* setBalance
*
* This should set the balance of the gift card to newBalance.
* The balance should be set to zero and complain if the newbalance
is less than
* zero.
*
* @param newBalance double The target balance.
*/
public void setBalance(double newBalance) {
// TODO: fill in this method
}
/**
* deduct
*
* This should reduce the balance of the gift card by amount. If the
amount is
* negative, complain and leave the balance unchanged. If the new
balance is
* negative, complain and leave the balance unchanged.
*
* @param newBalance double The target balance.
*/
public void deduct(double amount) {
// TODO: fill in this method
}
/**
* report
*
* Print the current balance on the card.
*/
public void report() {
// TODO: fill in this method
}
// Driver
public static void main (String[] args) {
GiftCard card0 = new GiftCard();
card0.setBalance(12.00);
card0.report(); // Should print $12.00
card0.deduct(25); // Should complain
card0.report(); // Should print $12.00
card0.deduct(2.50);
card0.report(); // Should print $9.50
GiftCard card1 = new GiftCard(40);
card1.report(); // Should print $40.00
card0.report(); // Should Print $9.50
card1.deduct(20);
card1.deduct(-20); // Should complain
card1.report(); // Should print $20.00
GiftCard card2 = new GiftCard(-20.05); // Should complain
card2.report(); // Should print $0.00
card2.setBalance(15);
card2.report(); // Should print $15.00
card1.report(); // Should print $20.00
card0.report(); // SHould print $9.50
}
}
Please find below the code of the GiftCard class with changes highlighted in bold. It is well explained inside the code using comments.
public class GiftCard {
private double balance;
public GiftCard(double initialBalance)
{
// sets the
balance
setBalance(initialBalance);
}
public GiftCard() {
}
public void setBalance(double newBalance)
{
// if newBalance
is negative, display error message to user
if (newBalance < 0)
{
System.out.println("Balance can't be negative.");
} else {
// else set the balance
balance = newBalance;
}
}
public void deduct(double amount) {
// if amount is
greater than baance, display error message to user
if (amount > balance)
{
System.out.println("Insufficient Balance!");
} else if (amount <
0) {
// if amount is negatice, display error message to user
System.out.println("Can't deduct negative amount!");
} else {
// deduct the amount from balance
balance -= amount;
}
}
public void report() {
// display the
remaining balance on gift card
System.out.println("$" +
balance);
}
}
Below is the output that the driver gives:
This completes the requirement. Let me know if you have any queries.
Thanks!
In Java pls //////////////////////////////////////// and here is the Giftcard.java copyable //////////////////////////...
Java
template
public class GiftCard
{
// Instance Variables
// TODO: balance
// Constructors
/**
* GiftCard(double initialBalance)
*
* Initialize a GiftCard object with a pre-defined amount of money.
*
* @param initialBalance double The desired starting balance
*/
public GiftCard(double initialBalance) {
setBalance(initialBalance);
}
/**
* GiftCard()
*
* Initialize a GiftCard object with a balance of $0.00.
*/
public GiftCard() {}
// Instance Methods
/**
* setBalance
*
* This should set the balance of the gift...
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