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 Computed Properties

Trung Bui Duc
Trung Bui Duc
1,580 Points
Posted by Trung Bui Duc
Trung Bui Duc
1,580 Points

Whats wrong with this code, please?

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

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

public String getColor() { return color; }

public void charge() { barCount = MAX_BARS; }

public isBatteryEmpty() { if(barCount == 0) { return true; } if (barCount != 0) { return false; } } }

I can't pass this exercise, please let me know what kind of solution should be provided.

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

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

  public String getColor() {
    return color;
  }

  public void charge() {
    barCount = MAX_BARS;
  }

  public isBatteryEmpty() {
    if(barCount == 0) {
      return true;
    }
    if (barCount != 0) {
      return false;
    }
  } 
}

1 Answer

Zack Massingill
Zack Massingill
868 Points

" public isBatteryEmpty() { if(barCount == 0) { return true; } if (barCount != 0) { return false; }"

^this method is not a boolean return type. try adding boolean behind the access modifier and before the method name.

Trung Bui Duc
Trung Bui Duc
1,580 Points
Trung Bui Duc
Trung Bui Duc
1,580 Points

Thank you for answer, I managed to solve this problem by adding boolean to the method name.