Complete Java SE 8 Developer Bootcamp - Access Modifiers

The video tutorial explains encapsulation in Java, focusing on access modifiers: public, private, and default. It uses the MyDate class to demonstrate how these modifiers control access to class members. The tutorial also clarifies common misconceptions about object references and introduces the protected modifier, which is relevant in inheritance contexts.

What is the primary purpose of using access modifiers in Java?

• To increase the size of the code

• To enhance the performance of the program

• To control the visibility of class members

• To simplify the syntax of the code

Which access modifier allows a class member to be accessed from anywhere in the program?

• Private

• Protected

• Public

• Default

What does the default access modifier imply in Java?

• The member is accessible from any subclass

• The member is accessible from any class in any package

• The member is accessible to any class in the same package

• The member is accessible only within its own class

In the 'MyDate' class example, why can't the 'day' field be accessed directly from another class?

• Because 'day' is declared as public

• Because 'day' is declared as private

• Because 'day' is declared as protected

• Because 'day' is declared as default

What analogy is used to explain the concept of access modifiers in the example?

• A book

• A telephone

• A computer

• A car

Which access modifier allows a class member to be accessed by subclasses in different packages?

• Default

• Public

• Private

• Protected

What is the relationship between the protected modifier and inheritance?

• Protected members can be accessed by any class in any package

• Protected members can be accessed by subclasses in different packages

• Protected members can be accessed by any class in the same package

• Protected members can only be accessed within the same class