Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial
alvaro howard
1,124 PointsI can't continue this excersise
The method drive is not correct but logically i can't seem to understand why
class GoKart {
public static final int MAX_BARS = 8;
private String color;
private int barCount;
private int lapsDriven;
public GoKart(String color) {
this.color = color;
}
public String getColor() {
return color;
}
public void charge() {
barCount = MAX_BARS;
}
public boolean isBatteryEmpty() {
return barCount == 0;
}
public boolean isFullyCharged() {
return MAX_BARS == barCount;
}
public void drive() {
drive(1);
}
public void drive(int laps) {
if (lapsDriven > 8 ){
throw new IllegalArgumentException("Too many laps");
}
barCount -= laps;
lapsDriven += laps;
}
}
2 Answers
Steven Parker
231,269 PointsIt looks like this code is throwing an exception when the total laps driven exceed 8. But the instructions say, "Add logic to the drive method so that it throws an IllegalArgumentException if there aren't enough bars to support the laps request."
So the exception won't be related to the total laps at all. Instead, you'll need to test the laps argument against the bar count to determine when to throw the exception.
alvaro howard
1,124 Pointsthank you, setting up the variables as you told me works !
alvaro howard
1,124 Pointsalvaro howard
1,124 PointsI don't understand.
I'm getting this error
Bummer: Make sure you throw a new IllegalArgumentException if the requested amount of laps would make the battery less than zero.
Steven Parker
231,269 PointsSteven Parker
231,269 PointsThe current code throws the exception when the total laps driven goes over 8, so you need to modify your test to check if the requested laps is more than the battery bars.