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Java Java Objects (Retired) Harnessing the Power of Objects Methods and Constants

Posted by Krondor The Destroyer
Krondor The Destroyer
1,556 Points

help

Each battery has a maximum of 8 bars.

For this task, let's add a constant field to the class that stores the maximum number of energy bars. Make sure the field cannot be changed and is accessible from the class, not just the instance. Use the naming convention we learned.

1 Answer

Kevin Faust
Kevin Faust
15,353 Points
Kevin Faust
Kevin Faust
15,353 Points

Hey Marco,

For this, we have to create a static variable that cannot be changed. We want this variable to be accessible directly from the class. Do you remember how to do this? 

public static final int MAX_BARS=8;

We write public because we want to access it from outside the code. We write static so we can access it directly from the class meaning we dont have to even create an object of the class to use it. We write final to make it unchangeable. And then lastly, we write the data type (we write int because we are storing a number) and then we make our variable all upper case as that is the naming convention with static variables.

I hope that made sense to you.

Happy coding and best of luck,

Kevin