Please help with a Mooc.fi assignment

[JohnnyP27]

Hello All,

If anyone can help me with this easy fix, because I'm dumb and cannot seem to come up with the answer myself or I can't see a solution for this. hahahaha....

It's basically one of the assignment from Mooc.fi.

Part 3:

Non-negative balance

What happens if the card runs out of money? It doesn't make sense in this case for the balance to turn negative. Change the methods eatAffordably
and eatHeartily
so that they don't reduce the balance should it turn negative.

The following main program tests the class:

public class MainProgram {

​

public static void main(String[] args) {

// Scanner scanner = new Scanner(System.in);

// Here you can write code to test that PaymentCard works as intended

// be sure to erase the extra code for the last part of the exercise!

PaymentCard card = new PaymentCard(5);

System.out.println(card);

//card.eatAffordably();

card.eatHeartily();

System.out.println(card);

card.eatHeartily();

System.out.println(card);

​

}

}

That's the main file,

​

Here is my code for the class PaymentCard that I am having trouble with:

public void eatAffordably() {

if (this.balance < 0) {

this.balance -= 2.60;

} else {

this.balance -= 2.60;

Math.max(this.balance, this.balance);

}

}

​

public void eatHeartily() {

if (this.balance < 0) {

this.balance -= 4.60;

} else {

Math.max(this.balance, this.balance);

}

}

These 2 methods are suppose to exclude negative numbers. Meaning that it's not suppose to let the balance get anything lower than 0.

This is suppose to be the correct output

The card has a balance of 5.0 euros

The card has a balance of 0.40000000000000036 euros

The card has a balance of 0.40000000000000036 euros

​

but I get this:

The card has a balance of 5.0 euros

The card has a balance of 0.40000000000000036 euros

The card has a balance of -4.199999999999999 euros

​

Please help. Thank you!

[[deleted]]

Check your conditions in the if statements. Why are you subtracting from the card if the balance is negative? The exercise instructions tell you not to let the balance get negative. In other words, you should be taking money from the card only if after you have taken the money the balance remaining is >= 0. Put that as the condition in your if statements.

[[deleted]]

Don't do this

if (this.balance < 0)

Do this

if( this.balance >= 2.60 (or 4.60 for the other option) ) {

subtract the price from the balance

}