Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Objects (Retired) Harnessing the Power of Objects Method Signatures

Adding a new default method 'drive'

My code is as follows. Could you please direct as to where I am going wrong? Thanks.

         public class GoKart {
  public static final int MAX_BARS = 8;
  private String mColor;
  private int mBarsCount;

  public GoKart(String color) {
    mColor = color;
    mBarsCount = 0;
  }

  public String getColor() {
    return mColor;
  }



  public void drive(int laps) {
    // Other driving code omitted for clarity purposes
    mBarsCount -= laps;
  }

   public void drive () {
  drive (1); 
  }

  public void charge() {
    while (!isFullyCharged()) {
      mBarsCount++;
    }
  }

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

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

}

2 Answers

Ken Alger
STAFF
Ken Alger
Treehouse Teacher

Prasanna;

Your code is almost there. Just remove the space between drive and (1) and you should have it.

Happy coding,

Ken

Ohh.. Duh!

Thanks Ken, Appreciate your response!

Ken Alger
Ken Alger
Treehouse Teacher

No worries. I spent a couple of hours today scouring my code for an error. I had put a 5 instead of an 8 and due to font type/size/old eyes, couldn't see it. Happens to all of us.

Ken