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

Terrence Adderley
PLUS
Terrence Adderley
Courses Plus Student 775 Points
Posted by Terrence Adderley
Terrence Adderley
Courses Plus Student 775 Points

I am a little stuck in the code challenge. I believe I have satisfied the question but I keep getting syntax errors.

Please have a look at my code, I would like to know what I am doing incorrectly.

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;

    boolean isFullyCharged=false;
    if (!isFullyCharged()){
    mBarsCount ++;
      isFullyCharged=true;
    }
}

}

2 Answers

matthiasweddeling
matthiasweddeling
10,508 Points
matthiasweddeling
matthiasweddeling
10,508 Points

Actually you misunderstood the instructions. They want you to change the charge-method:

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

the old charge-method simply set mBarsCount equal to MAX_ENERGY_BARS. Now they want you to do it with a while-loop. The loop will increment mBarsCount by 1 as long it is not fully charged. Feel free to ask more questions.

Jess Sanders
Jess Sanders
12,086 Points
Jess Sanders
Jess Sanders
12,086 Points

Use the following snippet of code as your example to follow:

public boolean dispense() {
    boolean wasDispensed = false;
    if (!isEmpty()) {
      mPezCount--;
      wasDispensed = true;
    }
    return wasDispensed;
  }
  • Instead of if, use while
  • increment, rather than "decrement"
  • The charge method doesn't need to return a boolean, so ignore all of the code involving the boolean wasDispensed

Keep isFullyCharged as it was from the previous challenge.

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