/*

* Purposes:

* A. This application tests Java's access modifiers for instance variables.

* Both private and package-private are tested.

* B. It also tests the cases where an object references another object of the same class.

*

* To test the application: Place both classes (Main and Main2) in the same folder/package.

*/

// When an object of a class has a reference to another object of the same class, the first object can access all

// the second object's data and methods, including those that are private.

//

//Cases and Rationale:

//

//case 1: The second object is one of the instance variables of the first object.

// Q: Would doing so create infinite references to objects of the same type?

// A: No, because the referenced object is initially null.

//

//case 2: The second object is a local variable in one of the methods of the first object.

A. Source files:

Main.java Main2.java

B. Running the application using NetBeans:

1. Download both files into a temporary folder.

2. Create a new project with existing sources; name the project referencingObjectsOfSameClassDemo and add both files into the project.

3. The figure below shows a sample output of running this application.