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Java Java Objects Harnessing the Power of Objects Method Overloading

Posted by Dinu Comendant
Dinu Comendant
6,049 Points

Exercise error, or I don't fully understand something here?

The first task asks you to use -= and +=, so I did, and it counted, but then I've been looking at my formula and it didn't make sense. So I tried to write the formula differently, for example:

lapsDriven-=barCount;
lapsDriven+=barCount;
//
barCount-=lapsDriven;
lapsDriven+=barCount;

and so on, tried every method and the exercise will always tell me that it's correct, but I get the feeling that something is wrong and it doesn't make sense

1 Answer

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

Hi, you understand it wrong, although this question is a little confusing but here is what u need to do:

public void drive(int laps) { lapsDriven += laps; barCount -= laps; }

they ask u to add a parameter to the method that represent the number of laps that a goKart user as drove. for example hypotatically let’s that laps = 3 then u drove 3 laps and then barCount decrement laps which holds 3 to know how many energy bars u wasted. laps is just a placeholder for the number of laps u drove, it is used to let the user to decide how many laps he will drive.