Default access modifier in Java - Cheat Sheet & Quick Revision

overview

Recall & Review

beginner

What is the default access modifier in Java when none is specified?

The default access modifier is package-private, meaning the member or class is accessible only within its own package.

beginner

Which classes can access a member with default access modifier?

Only classes in the same package can access members with the default access modifier.

beginner

True or False: A default access modifier member is accessible from subclasses in different packages.

False. Default access members are not accessible outside their package, even by subclasses.

beginner

Code snippet:<br><pre>class Example {
  int number = 5; // no access modifier
}</pre><br>What is the access level of 'number'?

The 'number' field has default (package-private) access, so it is accessible only within the same package.

intermediate

Why might a developer use the default access modifier?

To restrict access to classes or members within the same package, promoting encapsulation without making them public.

What is the scope of a member with default access modifier in Java?

A Accessible from any package

B Accessible from subclasses in any package

C Accessible only within the same class

D Accessible only within the same package

If no access modifier is specified for a class member, what is its access level?

A public

B private

C default (package-private)

D protected

Can a class in a different package access a default access member?

A No, never

B Only if it is a subclass

C Yes, always

D Only if it imports the package

Which keyword is used to declare default access modifier explicitly?

A package

B none (no keyword)

C default

D private

Which of these is NOT an access modifier in Java?

A default

B public

C protected

D private

Explain what the default access modifier means in Java and when it is applied.

Describe a scenario where using the default access modifier is beneficial.