I can't figure out the proper syntax for this challenge

Question

Task: 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.

"I can't figure out how to tell the gokart to drive more laps than in can in order to run the Try Catch block. Any ideas would be greatly appreciated

GoKart.java

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;
    try {
      GoKart.drive(20);
    }catch(IllegalArgumentException iae) {
        System.out.println("Not enough bars to complete request");
    }

  }
}

Answer 1 · 2017-09-22T16:29:57Z

September 22, 2017 4:29pm

First of all, we just have to add a check to the drive() method, what you are doing is checking GoKart.drive() method inside of drive() method.

You simple have to check if there is any battery left or not, if there is any, drive will execute else it'll throw an error and exit.

public void drive(int laps){
  if(barCount<1){
    throw new IllegalArgumentException("Not Enough Battery left");
  }
  lapsDriven+=1;
  barCount -=1;
}

*There maybe some error, I typed it myself.

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Evan Coakley

Evan Coakley

I can't figure out the proper syntax for this challenge

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Amrit Pandey

Amrit Pandey