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Java Java Objects Harnessing the Power of Objects Computed Properties

Kyle Dudley
Kyle Dudley
604 Points
Posted by Kyle Dudley
Kyle Dudley
604 Points

How do i do ths?

i cant what is problem haelp

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 boolean isBatteryEmpty() {
   return barCount = 0;
 }


  public String getColor() {
    return color;
  }

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

2 Answers

andren
andren
28,558 Points
andren
andren
28,558 Points

Your code is extremely close, the issue is that you use the = operator instead of ==.

= is used to assign a value, == is used to compare values. Since you are comparing barCount to 0 the == operator is the one that you have to use.

So if you change your code to this:

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

Then you will pass the first task.

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,253 Points
Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

Hi Kyle,

The code challenge wants you to return 0 in your new method, but only if the bar count is actually zero.

So you should test the value of the barCount variable.

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

Rememer when testing conditions you use the == equality operator instead of = which is assignment! :-)