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Java Java Objects Harnessing the Power of Objects Computed Properties

Noah Short
Noah Short
750 Points
Posted by Noah Short
Noah Short
750 Points

why is my 'isFullyCharged' method not showing equality between barCount and MAX_BARS?

public boolean isFullyCharged(){ barCount = MAX_BARS; }

GoKart.java 
class GoKart {
  public final static 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 boolean isFullyCharged(){
    barCount = MAX_BARS;
  }

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



}

2 Answers

Brendon Butler
Brendon Butler
4,254 Points
Brendon Butler
Brendon Butler
4,254 Points

That's because instead of checking equality, you're setting barCount equal to MAX_BARS.

Instead, you need to return a boolean and check equality using double equals instead of single:

public boolean isFullyCharged() {
    return (barCount == MAX_BARS);
}
Matt Taylor
Matt Taylor
2,406 Points
Matt Taylor
Matt Taylor
2,406 Points

Thanks for posting Noah and thanks for the answer Brendon!