Static

/*
    Static is used with variables and methods to make them belong to the class rather than an instance
    of the class. Static members are shared among all instances of a class and can be accessed without 
    creating an instance of the class.
*/

public class MyStaticClass {
    public static Integer myStaticVariable;

    public static void myStaticMethod() {
        // Code logic shared by all instances!
    }
}