What are class variables in Java?

What are class variables in Java?

Class variables in Java are static variables that belong to the class rather than any instance of the class.

How do you declare a class variable?

You declare a class variable using the 'static' keyword, like this: 'static int myVariable;'. This variable is shared among all instances.

Can you give me an example of using class variables?

Sure! If you have a class 'Car' with a static variable 'numberOfCars', every time you create a new 'Car' object, you can increment this variable to keep track of how many cars have been created.

What is the difference between class variables and instance variables?

Class variables are shared across all instances, while instance variables are unique to each object created from the class.