Method Signatures

Question

How to call the drive method which is already declared and pass 1 to it as laps

GoKart.java

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

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

  public String getColor() {
    return mColor;
  }


public void drive(){
drive(mBarsCount -= 1);
}


  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;
  }

}

Answer 1 · 2015-06-26T19:04:57Z

June 26, 2015 7:04pm

The idea is you will have the drive() method call the drive(int laps) method. In your drive() method, you do not need to do any calculation, just call the drive(int laps) method. The drive(int laps) method will do the subtraction for you - like so:

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

Answer 2 · 2015-06-26T19:05:30Z

June 26, 2015 7:05pm

Not sure exactly what you're asking here. But you do have two drive methods with the same name, which isn't a great idea. If you want a method that takes an int laps, then perhaps name the method driveThisManyLaps.

So instantiate a new instance of GoKart, then access the method you need. Such as:

GoKart marioKart = new GoKart();
marioKart.driveThisManyLaps(1);
//or
marioKart.drive();  //

You could add some logic so that for every lap driven, one mbar would be decremented. This could all be done in one drive method.

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adriantennison

adriantennison

Method Signatures

2 Answers

Jon Kussmann

Jon Kussmann

Hayes McCardell II

Hayes McCardell II