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Java Java Objects Harnessing the Power of Objects Computed Properties

Posted by Archit Raj
Archit Raj
619 Points

A new public method named isBatteryEmpty that returns true if the battery has 0 bars remaining, and false otherwise.

Create a new public method named isBatteryEmpty that returns true if the battery has 0 bars remaining, and false otherwise.

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 boolean isBatteryEmpty() {
   if (barCount == 0) {
    return true;
  } else {
    return false;
   }
  }

5 Answers

Zach Freitag
Zach Freitag
20,341 Points
Zach Freitag
Zach Freitag
20,341 Points

Spoiler Alert

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 boolean isBatteryEmpty() {
   if (barCount == 0) {
    return true;
  } else {
    return false;
   }
  }
}

Cheers!

Mike Wagner
Mike Wagner
23,559 Points
Mike Wagner
Mike Wagner
23,559 Points

You're missing the final closing brace for the class

terrimodomo
terrimodomo
6,153 Points
terrimodomo
terrimodomo
6,153 Points

which closing bracket was missing here?

Mike Wagner
Mike Wagner
23,559 Points

The boolean gets closed out but there's a missing 3rd brace at the end to close out the entire class. It's difficult to catch because of the messed up indentation in that function. I missed it initially when I read through the code, but once I cleaned it up it jumped out at me.

Swapnika Chava
Swapnika Chava
571 Points
Swapnika Chava
Swapnika Chava
571 Points

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; if(barCount==0) System.out.ln("The battery is dead");

else 
  System.out.ln("The battery is full");

}

public void charge() { barCount = MAX_BARS; } }

Vikki Garner
Vikki Garner
626 Points
Vikki Garner
Vikki Garner
626 Points

Another option is:

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