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Java Java Objects Harnessing the Power of Objects Exceptions

Posted by Dinu Comendant
Dinu Comendant
6,049 Points

Question about the challenge

in the video, Craig had to put pezCount = newAmount in order for the code to work, but in the challenge itself:

public void drive (int laps) {
int lapsAmount = barCount - laps;
if (lapsAmount < 0) {
throw new IllegalArgumentException ("Battery finished");
}
}

I wrote without barCount = lapsAmount and it worked. Is it something wrong with the exercise, or I didn't fully understand the concept?

2 Answers

<noob />
<noob />
17,062 Points
<noob />
<noob />
17,062 Points

i don’t understand what is your question , ur implemention looks ok, u store the amount of laps into lapsAmoint,

Dinu Comendant
Dinu Comendant
6,049 Points
Dinu Comendant
Dinu Comendant
6,049 Points

I just dont understand why in Craig's case is necessary, and in mine is not

Eddy Banks
Eddy Banks
8,808 Points

Hi it is different because the drive() method does something different.

In the video, the fill() method takes in pezAmount parameter and assigns it to pezCount

In the challenge, the drive() method takes in laps parameter and adds to lapsDriven and subtracts it from barCount