Variable Declarations: Variable declarations are statements that define a variable's name, type, and initial value. They are used to store data that can be accessed and manipulated by behaviors.
Constructors:Constructors are special methods used to initialize objects when they are created. They set the initial values of variables and prepare the object for use.
Inheritance:Inheritance is a concept where one class inherits properties and behaviors from another class. It allows for code reuse and promotes hierarchical organization of classes.