Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Java Java Objects Harnessing the Power of Objects Overload Methods

I don't understand what the question is asking me to do. Please help

Am I supposed to create a new variable to accommodate the total number of laps?

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;

  console.readLine("How many laps are you going to drive", lapsDriven);

  public drive( int lapsDriven) {


    return lapsDriven;

1 Answer

You were close to getting the challenge correct you just forgot use your parameter within the method try:

public void drive(int lapsDriven) {
    lapsDriven += this.lapsDriven;
    barCount -= this.lapsDriven;

or this code:

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

Thank you very much, your help is appreciated