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Start your free trialDaniel Hunter
4,622 PointsI have no compiler or syntax errors and seem to have everything correct but can't get past the question
Challenge Task 1 of 1
You probably already spotted the error in the drive method that accepts laps. You can drive way more laps than our battery can handle. Let's fix it.
Add logic to the drive method so that it throws an IllegalArgumentException if there aren't enough bars to support the laps request. Remember it takes 1 bar of energy to go around a lap.
(error message) Bummer! Make sure you throw a new IllegalArgumentException if the requested amount of laps would make the battery less than zero.
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() {
lapsDriven++;barCount--;
if (barCount > 0){
throw new IllegalArgumentException("not enough battery");
}
}
public void drive(int maxLaps){
barCount-= lapsDriven+= maxLaps;
}
}
1 Answer
Rashmi Jha
2,842 PointsMaybe this code snippet will help you out. I get this code from the community, students help me there because I am also facing this kind of issue
public void drive(int laps) { if(laps <= barCount){ lapsDriven += laps; barCount -= laps; } else { throw new IllegalArgumentException(); } }