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Start your free trialBenneth Paredis
4,597 Pointsneed help with the go kart excercise
It seems like im doing this excercise wrong but i dont know what im doing wrong can somebody please help me ?
public class GoKart {
public static final int MAX_BARS = 8;
private String mColor;
private int mBarsCount;
public GoKart(String color) {
mColor = color;
mBarsCount = 0;
}
public String getColor() {
return mColor;
}
public void drive() {
drive(1);
}
public void drive(int laps) {
// Other driving code omitted for clarity purposes
if ( mBarsCount < 0) {
throw new IllegalArgumentException ("Not enough battery remains");
}
mBarsCount -= laps;
}
public void charge() {
while (!isFullyCharged()) {
mBarsCount++;
}
}
public boolean isBatteryEmpty() {
return mBarsCount == 0;
}
public boolean isFullyCharged() {
return mBarsCount == MAX_BARS;
}
}
1 Answer
Grigorij Schleifer
10,365 PointsHi Benneth,
your code syntax is fine, but the logic can be improved :)
So the only thing you need to change is replacing 0 with laps, because you are comparing mBarsCount with laps. If you want to drive more laps as the bars inside mBarsCount, the exception will be thrown.
public void drive(int laps) {
if (mBarsCount<laps) {
throw new IllegalArgumentException ("Not enough battery remains");
}
mBarsCount -= laps;
}
Does it make sense?
Grigorij
Benneth Paredis
4,597 PointsBenneth Paredis
4,597 PointsThank you very much now it makes sense.
Grigorij Schleifer
10,365 PointsGrigorij Schleifer
10,365 PointsGlad I could help :)