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Pratham Mishra
Courses Plus Student 935 PointsI got stuck on this challenge can anyone help me out here to solve this challenge
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.
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;
throw IllegalArgumentException("there aren't enough bars to support the laps request.");
}
}
2 Answers
brianbietry
753 PointsFirst you need to create a if statement to see if the condition is met. Then throw the exception. It should look similar to this.
public void drive(int laps) {
if((barCount - laps) < 0){
throw new IllegalArgumentException("There is not enough energy to complete that action");
}
lapsDriven += laps;
barCount -= laps;
}
Mia Allen
2,929 PointsIt took me a while too! Try doing this: public void drive(int laps) {
lapsDriven += laps;
barCount -= laps;
if(lapsDriven){
throw new IllegalArgumentException("Needs to recharge. This will take 45 seconds.");
}
it worked for me! Mia?????