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Java Java Objects (Retired) Harnessing the Power of Objects Method Signatures

im confused on how we are suppose to add in the laps

im confused

GoKart.java
public class GoKart {
  public static final int MAX_BARS = 8;
  private String mColor;
  private int mBarsCount;

  public GoKart(String color) {
    mColor = color;
    mBarsCount = 0;
  }

  public String getColor() {
    return mColor;
  }


  public void drive(int laps) {
    // Other driving code omitted for clarity purposes
    mBarsCount -= laps;
  }
  public void drive() {
   drive(MAX_BARS);
  }

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

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

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


}

1 Answer

Rob Bridges
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Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,467 Points

Hello, this challanege is asking you to pretty much just make another method that doesn't require an argument of how many laps to drive.

Since we already have a drive method it's pretty easy to set up.

1) create a new method drive that takes no arguments. so it should be drive().

2) once the method is complete make the body of the method perform the drive method taking away one lap.

3) what this does is ensure that if a user just wants to drive one lap then you can call your newly created drive method, to just take away one lap as an assumption without telling it to.

It should look something like this.

  public void drive() {
    drive(1);
  }

Let me know if this helps or if I need to further clarify something