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Java Java Objects Harnessing the Power of Objects Add a Constant

Posted by Francis Lamy
Francis Lamy
8,218 Points

Make sure that you've marked the MAX_BARS field with the static keyword. Which static keyword?

I can't seem to get this right. Asking me to have a static keyword, but I'm a bit confused to what and where I should put. Where am I going wrong?

GoKart.java 
class GoKart {
  public final int MAX_BARS = 8;
  private String color;

  public GoKart(String color) {
    this.color = color;
  }

  public String getColor() {
    return color;
  }

}

2 Answers

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

They are talking about the keyword literally called static. The static keyword is placed before a declaration like you do with keywords like public or final.

So the task wants the MAX_BARS declaration to look like this:

public static final int MAX_BARS = 8;

The static keyword makes it so you can access something directly from a class, without having to make an instance (object) from the class.

In other words without the static keyword you would need code like this to access MAX_BARS:

GoKart goKartObject = new GoKart("Blue");
goKartObject.MAX_BARS;

With the static keyword you can access MAX_BARS like this:

GoKart.MAX_BARS;
Francis Lamy
Francis Lamy
8,218 Points
Francis Lamy
Francis Lamy
8,218 Points

OOohhh... So simple! Thanks Andren!