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Java Java Objects Harnessing the Power of Objects Overload Methods

Posted by Arianda Setiawan
Arianda Setiawan
1,497 Points

Hi I don't understand the task. What should I do?

Hi I don't understand the task. What should I do?

GoKart.java 
class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;
  private int lapsDriven;


  public GoKart(String color) {
    this.color = color;
  }

  public String getColor() {
    return color;
  }
  public void charge() {
    barCount = MAX_BARS;
  }

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

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

  public void drive() {
    lapsDriven++;
    barCount--;
    int laps;
  }
}

3 Answers

Michelle Bramlett
Michelle Bramlett
1,253 Points

Hi Arianda, You'll want to modify the drive method by changing(deleting)-

lapsDriven ++; barCount--; int laps;

to simply-

drive(1); }

Then you'll want to add-

public void drive(int lapsRemaining) { lapsDriven += lapsRemaining; barCount -= lapsRemaining; } }

Michael Werlinger
Michael Werlinger
1,259 Points

This is a smart work around to the fact that we are not allowed to simply use

lapsRemaining == barCount;

I really like it! Thank you!!!!

Arianda Setiawan
Arianda Setiawan
1,497 Points
Arianda Setiawan
Arianda Setiawan
1,497 Points

The task: Some users of our GoKart class wrote and asked that our drive method accept a parameter to specify how many laps to go, instead of just one. It happens, well hey at least you can practice your addition and subtraction shortcuts.

Modify the drive method to define a parameter of how many laps should be driven. Update the method body to handle the new parameter.

Arianda Setiawan
Arianda Setiawan
1,497 Points
Arianda Setiawan
Arianda Setiawan
1,497 Points

Oh I understand now. Thanks Michelle!