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Java Java Objects Harnessing the Power of Objects Handling Exceptions

Andrew Eddy
Andrew Eddy
1,249 Points

My code is outputting an exception error yet I'm not passing the coding challenge. What am I doing wrong?

I've been trying to get my code to pass the challenge for around 30 minutes and it's not working. When I preview the output of my code it's the IllegalArgumentException but for some reason it's not passing the challenge.

Example.java
class Example {

  public static void main(String[] args) {
    GoKart kart = new GoKart("purple");
     if (kart.isBatteryEmpty()) {
      System.out.println("The battery is empty");
    }
    kart.charge();
    try {
    kart.drive(42);
    } catch (IllegalArgumentException notEnoughBattery) {
      System.out.println(notEnoughBattery.getMessage());
      }
  }

}
GoKart.java
class GoKart {
  public static final int MAX_BARS = 8;
  private int barCount;
  private String color;
  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) {
    if (laps > barCount) {
      throw new IllegalArgumentException("Not enough battery");
    }
    lapsDriven += laps;
    barCount -= laps;
  }

}

1 Answer

Henrik Christensen
seal-mask
.a{fill-rule:evenodd;}techdegree
Henrik Christensen
Python Web Development Techdegree Student 38,319 Points

I see you have added kart.charge();, but the only thing you should add to the code is the try / catch block.

class Example {

  public static void main(String[] args) {
    GoKart kart = new GoKart("purple");
    if (kart.isBatteryEmpty()) {
      System.out.println("The battery is empty");
    }

    try {
      kart.drive(42);
    } catch (IllegalArgumentException iae) {
      System.out.println(iae.getMessage());
    }
  }

}