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

Terrence Adderley
PLUS
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

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.

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;
  }