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Java Java Objects (Retired) Harnessing the Power of Objects Incrementing

jatinder kumar
PLUS
jatinder kumar
Courses Plus Student 4,886 Points

what is wrong with this code?

public void charge() {

while(!isFullyCharged())
{
  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;
  }

  l
  public String getColor() {
    return mColor;
  }

  public void charge() {

    while(!isFullyCharged())
    {
      mBarsCount=mBarsCount+1;
    }

  }

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

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

}

2 Answers

Jennifer Nordell
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Jennifer Nordell
Treehouse Teacher

Absolutely nothing is wrong with it. If I take the code that you posted at the top, and paste it in to the current charge method, the challenge passes! However, if I try to use the code posted in the second bit, it fails because it explicitly wants you to use the unary ++ operator. The question is why you aren't passing the challenge. My best suggestion is to close the browser and reopen it, and start the challenge again. Paste the code you have in the top section into the current charge function and press "check work". If it's still failing you might have to contact support. Happy coding! :sparkles:

Leonard Morrison
PLUS
Leonard Morrison
Courses Plus Student 32,914 Points
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;
  }

  //l
//^ Get rid of this spare l.
  public String getColor() {
    return mColor;
  }


  public void charge() {

    while(!isFullyCharged())
    {

//Try using the ++ instead of +1.
      mBarsCount=mBarsCount++;
    }

  }

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

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

}