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

Posted by joshwuebben
joshwuebben
1,255 Points

can't figure this out

Don't know what to do next

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;
  }

}

1 Answer

Mohammed Amin
Mohammed Amin
5,445 Points
Mohammed Amin
Mohammed Amin
5,445 Points

The challenge is asking you to update the charge method to simulate what charging would look like visually.

They also ask you to utilize the isFullyRecharged method that you implemented while also using a while loop and the ! symbol.

So instead of the charge method simply saying your current charge equals the max charge, you are tasked with simulating "actually" charging it.

To solve this, you can write a while block and continue to increment the mBarsCount while it is not fully charged.

Solution:

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

The code says, if it isn't fully charged, then update mBarsCount by 1 until it is.