Can the modifiers public protected private and static be used for inner classes?

Can the modifiers public protected private and static be used for inner classes?

You can use the same modifiers for inner classes that you use for other members of the outer class. For example, you can use the access specifiers private , public , and protected to restrict access to inner classes, just as you use them to restrict access do to other class members.

How can a protected modifier be accessed accessible only within the class?

Explanation: The protected access modifier is accessible within package and outside the package but only through inheritance. The protected access modifier can be used with data member, method and constructor. It cannot be applied in the class. 5.

Which modifiers can be applied to the inner class?

1) Inner class Inner class acts as a member of the enclosing class and can have any access modifiers: abstract , final , public , protected , private , static .

Can an inner class be protected?

Static nested classes do not have access to other members of the enclosing class. As a member of the OuterClass , a nested class can be declared private , public , protected , or package private. (Recall that outer classes can only be declared public or package private.)

What is the difference between public/private and protected access modifiers?

If the class member declared as public then it can be accessed everywhere. If the class members declared as protected then it can be accessed only within the class itself and by inheriting and parent classes. If the class members declared as private then it may only be accessed by the class that defines the member.

Which of the following modifiers Cannot be serialized?

Changing the access to a field – The access modifiers public, package, protected, and private have no effect on the ability of serialization to assign values to the fields.

How do I access a protected method outside the package?

The protected access modifier is accessible within the package. However, it can also accessible outside the package but through inheritance only. We can’t assign protected to outer class and interface. If you make any constructor protected, you cannot create the instance of that class from outside the package.

How do I access a protected constructor?

A protected constructor can be accessed by a class instance creation expression (that does not declare an anonymous class) or a method reference expression only from within the package in which it is defined.

What are the difference between a public method and a protected one?

The difference between public and protected is that public can be accessed from outside class but protected cannot be accessed from outside class. In the example above, we created a protected method inside the Addition class. The protected method will transfer to the public class.

Can a class have a private access modifier?

Like any other instance variable, we can have access modifier private, protected, public and default modifier. Like class, interface can also be nested and can have access specifiers. Following example demonstrates a nested class.

Can a local inner class use the outer method?

Method Local inner classes can’t use local variable of outer method until that local variable is not declared as final. For example, the following code generates compiler error (Note that x is not final in outerMethod () and innerMethod () tries to access it)

Is the interface of an object protected or private?

The interface of an object is the part of that object that is visible to external users of that class. On the contrary, protected and private methods (and fields) belong to the class internals. They are encapsulated inside the class and a class user should not be aware of them.

Can a nested inner class access an outer class?

Nested Inner class can access any private instance variable of outer class. Like any other instance variable, we can have access modifier private, protected, public and default modifier. Like class, interface can also be nested and can have access specifiers. Following example demonstrates a nested class.