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Java Java Objects Harnessing the Power of Objects Computed Properties

I do not understand why it is not passing.

why is it passing the first boolean statement? Is this a syntax error or do I need to use "public Boolean !isBatteryEmpty" instead?

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 boolean isBatteryEmpty(){
    return barCount == 0;

  public void charge() {
    barCount = MAX_BARS;

    public boolean isFullyCharged(){
      return barCount == 8;


1 Answer

Huzaifa Sajjad Malik
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points

Your code is perfectly fine but instead of using 8 use the constant variable that you created as MAX_BARS.

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