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

Incrementing

Help me here , I don't know what's wrong

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 void drive (){
     boolean wasLapDriven =  false ;
    If ( ! isLapdriven ());
lapDriven ++;
    wasLapDriven= true;
  }

  public String getColor() {
    return color;
  }

  public void charge() {
    barCount = MAX_BARS;
  }

  public boolean isBatteryEmpty() {
    return barCount == 0;
  }


  public boolean isFullyCharged() {
    return MAX_BARS == barCount;
  }
}

When viewing the 'Increment and Decrement' challenge for this I see three tasks.

Task 1 had me add a private int called lapsDriven. Task 2 had me create a public method called drive, which would increment laps driven, and return nothing. Task 3 had me modify the drive method to decrement the number of bars left in the bar count.

My code at the end of Task 3 was as follows:

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

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

Is this the task you were trying to complete? Or was it a later one?

1 Answer

While I suspect that your code is for a later challenge I have just noticed a possible typo. I suspect:

    lapDriven ++;

was supposed to read:

    lapsDriven++;