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

Elijah Parkhurst
Elijah Parkhurst
4,776 Points
Posted by Elijah Parkhurst
Elijah Parkhurst
4,776 Points

I keep getting Bummer "Use ++ to increment the mBarsCount member field" when I am using ++ to increment.

I keep failing on this challenge. To the best of my knowledge I am close. For this challenge I didn't touch the method isFullyCharged but only changed the charge method. Do I need to do more or is there some kind of syntax problem that I am over looking?

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() {
    while (!isFullyCharged()) {
    mBarsCount ++;

    }
  }

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

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

}
Elijah Parkhurst
Elijah Parkhurst
4,776 Points
Elijah Parkhurst
Elijah Parkhurst
4,776 Points

So I redid this challenge after posting this question and it passed!! I didn't type anything vastly different. I think the problem may have been in the space between mBarsCount and ++ but I'm not certain

1 Answer

Rob Bridges
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,467 Points
Rob Bridges
.a{fill-rule:evenodd;}techdegree seal-36
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,467 Points

Hey Elijah,

Your code is great, there's just one small error, when incrementing try 

mBarsCount++;

No space between, when I copied your code in and tried to run it this fixed the problem, looks like a small error.

Thanks, let me know if this doesn't help.