Object Oriented Programming

Class Variables in Java

Class variables are tied to the class itself, and its value is shared across all class objects.

Syntax

//within a class
modifier static variableName;

//accessing the class variable
className.variableName;

Notes

The static modifier prefix is what makes a variable a class variable.

Class variables can be accessed using the object, but this is discouraged.

Example

public class Car {
    public static int numberOfWheels = 4; //all cars have 4 wheels
}

System.out.println("Number of wheels: " + Car.numberOfWheels);