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

Posted by Ramy Obeid
Ramy Obeid
2,373 Points

ihave 2 errors the" isFullyCharged" and , "if (!BarsCount()){ " but i dont know how to corrct this errors thx in advance

That's the question thx guys : Okay, so let's use our new isFullyCharged helper method to change our implementation details of the charge method. Let's make it so it will only charge until the battery reports being fully charged. Let's use the ! symbol and a while loop. Inside the loop increment mBarsCount.

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() {
    return mBarsCount == MAX_ENERGY_BARS;
    if (!barsCount()) {
      mBarsCount--;
    isFullyCharged = MAX_ENERGY_BARS;
    }

  }
}

2 Answers

Evan Demaris
Evan Demaris
64,262 Points
Evan Demaris
Evan Demaris
64,262 Points

Hi Ramy,

The Challenge is asking you to use the isFullyCharged() method to update the charge() method. Essentially, you're not being asked to change the isFullyCharged() method at all.

  public void charge() {
    while (!isFullyCharged()) {
     mBarsCount++;
    }
  }
micheala leaver
micheala leaver
1,313 Points

THANK YOU SO SO SO MUCH!!! I have been stuck on that one for awhile and could not get past it! So, THANK YOU SO MUCH!

Ramy Obeid
Ramy Obeid
2,373 Points
Ramy Obeid
Ramy Obeid
2,373 Points

thank you, Evan yh i see it now thx again for answering fast