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

Posted by Hank Tran
Hank Tran
652 Points

I don't know what to do. Can you help me?

It requires: Okay, 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;
  }

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

}

1 Answer

Ollie Prentice
Ollie Prentice
11,685 Points
Ollie Prentice
Ollie Prentice
11,685 Points

Your code is correct, just need to move it into the charge method as shown below.

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