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Java Java Objects Harnessing the Power of Objects Add a Constant

Ayhan Güler
Ayhan Güler
8,658 Points

In my opinion the challenge says "accessable on class level", which means private or protected to me - not public?

The "check work" buttons says "public" is required. Maybe you can reformulate the challenge for better understanding?

Yanuar Prakoso
Yanuar Prakoso
15,194 Points

in my opinion public static final is the best method to represent this field in this challenge.

If you use private, the constant MAX_BARS can only be accessed within inside the class. Outside class will not be able to access it.

If you use protected only sub classes of this class can access this constant.

Thus you should use public to make it accessible on class level meaning outside this class. To prevent other classes to change this field constant we put final on it. The static means this field can be used without instantiate it first.

This is my opinion

2 Answers

If you want anything to be available to you without instantiation, you need to use the keyword: "static". This will allow you to access the variable without creating an object of the class.