Default Constructors and Object Reference Variables

Vocabulary and syntax rules regarding default constructors and object reference variable declarations from the CSE 215 lecture notes.

Default constructor

A no-arg constructor with an empty body that is implicitly declared and provided automatically in a class only if no constructors are explicitly declared.

Object reference variable

A variable used to reference an object by assigning the object to it.

Syntax for declaring a reference variable

$$\text{ClassName objectRefVar;}$$

Example of a reference variable declaration

$$\text{Circle myCircle;}$$