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Start your free trialDamjan Vlaic
19,244 Points---JAVA---
my question is this ---> "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." This is my code for now, pls help :)
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) {
lapsDriven += laps;
barCount -= laps;
}
}
1 Answer
Steve Hunter
57,712 PointsHi there,
You want to test if
the value passed into the method, laps
, is greater than barCount
. If it is, throw
a new IllegalArgumentException
. Then else
, run the existing lines of code.
So, before you do anything to lapsDriven
or barCount
, test the size of laps
.
I hope that helps,
Steve.
Damjan Vlaic
19,244 PointsDamjan Vlaic
19,244 Pointsahaa i i get it now, tnx for help Steve ;)
Steve Hunter
57,712 PointsSteve Hunter
57,712 PointsNo problem - glad you got it sorted.