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 (Retired) Harnessing the Power of Objects Incrementing

i cant solve this by myself, can somebody show me the answer please?

can't figure this out, need to see example

GoKart.java
public class GoKart {
  public static final int MAX_ENERGY_BARS = 8;
  private String mColor;
  private int mBarsCount;

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

  public String getColor() {
    return mColor;
  }

  public void charge() {

    mBarsCount = MAX_ENERGY_BARS;

  }

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

  public boolean isFullyCharged() {
    //boolean wasCharged=false;
    while(!isFullyCharged()){
      mBarsCount++;
       //wasCharged=true;
    }
    //return wasCharged;
    return mBarsCount== MAX_ENERGY_BARS; 
  }

}

1 Answer

Simon Coates
Simon Coates
28,694 Points

You've misunderstood what they're asking you to do, I think. See below.

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

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

  public String getColor() {
    return mColor;
  }

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

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

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

}