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Java Java Objects Harnessing the Power of Objects Constants

Posted by rehan guddu
rehan guddu
Courses Plus Student 122 Points

MAX_PEZ

I don't understand why PezDispenser.MAX_PEZ is written instead of only MAX_PEZ in Example.java, when it is not a function

3 Answers

Unsubscribed User
Unsubscribed User
1,321 Points
Unsubscribed User
Unsubscribed User
1,321 Points

Hello rehan guddu,

When calling something (like a method...) we have to show where each method is coming from.

PezDispenser.MAX_PEZ is written instead of only MAX_PEZ

Because PezDispenser.java is the Class (or 'home') of the MAX_PEZ.

We are basically saying, "You know that thing in PezDispenser, named MAX_PEZ? Can you get it for me?"

Please let me know if there is anything else I can help with.

rehan guddu
PLUS
rehan guddu
Courses Plus Student 122 Points
rehan guddu
rehan guddu
Courses Plus Student 122 Points

Thank you. I understood the concept

Anastasios Poursaitedes
Anastasios Poursaitedes
10,491 Points
Anastasios Poursaitedes
Anastasios Poursaitedes
10,491 Points

Hi Rehan, MAX_PEZ is a class field/member, so it resides in the PezDispenser universe and therefore it needs the dot notation and the class name(or an instance of a class if it is not a static field). As with class fields, instance fields are a part of the instance itself. You cannot invoke them without their instance. They belong to the instance, not to the global scope(In our case the main method which we run our program).