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Java Java Objects Harnessing the Power of Objects Computed Properties

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
28,520 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 90,705 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! :-)