Java ClassesLesson 27Free preview

Java Class Attributes

This lesson is part of Java · All levels

Summary

A class attribute or field is a variable that a class has to store its data. There's a field instance where the values of each object are different, and there's a static field that all objects share. The value of the field can be filled directly, via the constructor, or via the method setter.

Key points

The instance variable is owned by each object and its value can vary.
The static field is owned by the class so it applies to all objects
The final modifier makes the value of an attribute unchangeable after initialization
Attributes can be assigned values when declared, in constructors, or by methods.

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