What are different types of access modifiers?

[chinmay.sahoo]

public: Any thing declared as public can be accessed from anywhere. private: Any thing declared as private can't be seen outside of its class. protected: Any thing declared as protected can be accessed by classes in the same package and subclasses in the other packages. default modifier : Can be accessed only to classes in the same package.

[damponting44]

The access to classes, constructors, methods and fields are regulated using access modifiers i.e. a class can control what information or data can be accessible by other classes. To take advantage of encapsulation, you should minimize access whenever possible.

[alpha_ace]

There are 3 types of access modifiers  are available

Public
Private
Protected

Public: All the class members declared under public will be available to everyone. The data members and member functions declared public can be accessed by other classes too. The public members of a class can be accessed from anywhere in the program using the direct member access operator (.) with the object of that class.

Private: The class members declared as private can be accessed only by the functions inside the class. They are not allowed to be accessed directly by any object or function outside the class. Only the member functions or the friend functions are allowed to access the private data members of a class.

Protected: Protected access modifier is similar to that of private access modifiers, the difference is that the class member declared as Protected are inaccessible outside the class but they can be accessed by any subclass(derived class) of that class.

[harrywood]

In most programming languages, including Java and C++, these access modifiers are used to control the visibility and accessibility of class members (variables and methods).

The "public" access modifier means that the member can be accessed from any other class or package.

The "private" access modifier limits the visibility of the member to only within the same class, meaning it cannot be accessed from other classes or packages.

The "protected" access modifier allows access to the member from classes in the same package and also subclasses, even if they are in different packages.

Lastly, the default modifier (also known as the package-private or friendly modifier) restricts access to only classes within the same package. It cannot be accessed from other packages.

Here are a few more details about access modifiers:

1. Public: When a member or class is declared as public, it can be accessed from anywhere in the program, including other classes and packages.

2. Private: A private member or class can only be accessed within the same class. It is not visible to any other class or package. This access modifier ensures data encapsulation and hides implementation details.

3. Protected: Protected members are accessible by classes in the same package and subclasses, even if they are in different packages. They provide a level of visibility that allows for inheritance and code reuse, while still maintaining some level of restriction.

4. Default (Package-private): If no access modifier is specified, the member or class will have default access. This means it can be accessed only by other classes within the same package. It is not visible outside the package.

Access modifiers play a crucial role in object-oriented programming by defining the accessibility and visibility of class members. They enable proper encapsulation, abstraction, and control over the interaction between different parts of a program.

[nisargshah]

Majorly, there are three types of access modifiers : Private Modifiers , Public Modifiers and Protected Modifiers.
In Public modifier , object and methods can be accesses from anywhere , in private , members can be accessed within the same class whereas in protected , members can be accessed within the same child class.


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[codiant]

Four Types of Access Modifiers:
1. Private: We can access the private modifier only within the same class and not from outside the class.
2. Default: We can access the default modifier only within the same package and not from outside the package. And also, if we do not specify any access modifier it will automatically consider it as default.
3. Protected: We can access the protected modifier within the same package and also from outside the package with the help of the child class. If we do not make the child class, we cannot access it from outside the package. So inheritance is a must for accessing it from outside the package.
4. Public: We can access the public modifier from anywhere. We can access public modifiers from within the class as well as from outside the class and also within the package and outside the package.