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

Aldrin Cabuniag
Aldrin Cabuniag
3,783 Points
Posted by Aldrin Cabuniag
Aldrin Cabuniag
3,783 Points

Java Challenge Question Help

I'm new to the coding and Java, and the challenge question is quite confusing for me to understand. I'm not sure how I can implement the while statement and ++ increments as the question asks.

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 isFullyCharged = false;
    if (mBarsCount == MAX_ENERGY_BARS) {
     while (!isFullyCharged) {
       mBarsCount ++;
       isFullyCharged = false;
     }
     }
    return mBarsCount == MAX_ENERGY_BARS;
  }

}

1 Answer

Chris Adamson
Chris Adamson
132,143 Points
Chris Adamson
Chris Adamson
132,143 Points

Here they are looking to add a while loop, and increment in the charge method:

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