Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Objects Harnessing the Power of Objects Increment and Decrement

Aidan L.
Aidan L.
1,158 Points

I don't understand what this task is trying to tell me.

It told me to decrement the barCount variable in the drive method. I added it and it said that task 1 is no longer passing.

GoKart.java
class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;

  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;
  }

  private int lapsDriven;

  public void drive() {
    lapsDriven++;
  }

}

1 Answer

Yanuar Prakoso
Yanuar Prakoso
15,196 Points

Hi Aidan I just add barCount--; into your code and it works. just decrement the barCount variable that is. This is my code:

private int lapsDriven;

  public void drive() {
    lapsDriven++;
    barCount--;
  }

I hope this will help.