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

Posted by Lucretia Lee
Lucretia Lee
1,814 Points

I have added a method drive that defines a parameter laps. These high-powered GoKarts use 1 energy bar off their batters

I still do not understand

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

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

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

}

3 Answers

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

You basically need to write another drive method, except that this one doesn't take any arguments. Now, this method is supposed to perform just 1 lap, so inside the method body you can call the other drive method, the one that takes an int argument, and pass 1 to it as an argument. Hopefully this makes sense, but let me know if it doesn't.

Lucretia Lee
Lucretia Lee
1,814 Points
Lucretia Lee
Lucretia Lee
1,814 Points

I'm just realizing that I didn't upload the one where I actually put both drives on. I have been trying to run it the exact way you are telling me to and I keep getting an error

Ken Alger
STAFF
Ken Alger
Treehouse Teacher
Ken Alger
Ken Alger
Treehouse Teacher

Lucretia;

I posted a response on this same challenge here. Take a look at post back if you have further questions.

Happy coding, Ken