Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Objects Harnessing the Power of Objects Overload Methods

SImon Popanda
SImon Popanda
622 Points

Qeustion about Overload methods

Can someone pls tell me what is wrong with my code?

i pass step 1 but when i want to check my work at step 2 it says task 1 is no longer working.

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

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

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


}

1 Answer

andren
andren
28,558 Points

You have a letter d on it's own on line 22 which does not belong there. If you remove that your code should pass.

It's also worth mentioning that you don't need to append this to the barCount variable, doing so won't cause an issue but it also isn't doing anything useful. You mostly only need to prepend variables with this when you are setting a field variable equal to a parameter which has the same name. The this helps Java distinguish between the two identically named variables.

SImon Popanda
SImon Popanda
622 Points

thank you, it finally worked