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Java Java Objects Harnessing the Power of Objects Add a Constant

Jiho Song
Jiho Song
16,469 Points
Posted by Jiho Song
Jiho Song
16,469 Points

HOW SHOULD I DO? (JAVA)

I DONT KNOW HOW TO FIX IT

GoKart.java 
class GoKart {
  private String color;
  final Integer MAX_BARS;
  public GoKart(String color) {
    this.color = color;
  }

  public String getColor() {
    return color;
  }

}

1 Answer

Philip Gales
Philip Gales
15,193 Points
Philip Gales
Philip Gales
15,193 Points

Bummer! Make sure you've added a new int field using the proper naming style MAX_BARS

This error is telling us something is wrong with your variable 'MAX_BARS'. More specifically, it is saying you have not added the variable.

But you thought you already added it? Nope. Something is broken with your code.

There is a big difference between 'Integer' and 'int'. For variables, use 'int'. Let's do this and see what happens.

class GoKart {
  private String color;
  final int MAX_BARS; //<----------------notice I changed 'Integer' to 'int'
  public GoKart(String color) {
    this.color = color;
  }

  public String getColor() {
    return color;
  }

}

Now we have this error

Bummer! Make sure that you've made MAX_BARS public, we want people to use it!

This one is easy! Just declare the variable public.

  public final int MAX_BARS;

Now we have

Bummer! Make sure that you've marked the MAX_BARS field with the static keyword. This will add the field to the GoKart class, for all GoKarts

Let's make the variable 'static'

  public static final int MAX_BARS;

UGH! Another error.

Bummer! Make sure you initialize MAX_BARS to 8

    public static final int MAX_BARS = 8;

Wow that was a lot of work, but we made it! Good job.