Access Modifiers in OOps
A class's stored data variables can have access modifiers applied to them to control how they are accessed and changed.
Deepak Talwar
This Articles helps you to understand the concept of Access Modifiers in OOPs.
In programming, accessibility is implemented for classes, methods, constructors, and other programme elements via access modifiers or access specifiers.
How to Hide Information via Encapsulation?
Use Access Modifiers to control visibility and accessibility of class-level structures and hide sensitive data from users.
Programmers should use these access modifiers to differentiate between public and non-public interface of an object.
Access modifiers are primarily designed for data hiding, or encapsulation. In object-oriented programming, the technique known as encapsulation or data hiding involves keeping the state of the data object or the values of its variables hidden inside a class. In order to protect the data and avoid disclosing crucial information about data kept by the class or methods, these enclosed values ban direct client access and place some restrictions on it. To put it briefly, access modifiers are used to specify who has access to or not in a program's class and methods.
Types of Access Modifiers
Public Modifier
The public access modifier has a broad scope. It implies that public class members (classes, methods, or data members) can be accessed using object of other classes. In other words, public class members have no restriction on the scope, and they can be accessible from everywhere in the program.
Private Modifier
The class members declared private are limited to the scope of the class and can be accessed only by the member methods inside the class. In other words, they can not be accessed directly by any object or method outside the class.
Protected Modifier
A protected access modifier is similar to a private access modifier, but access level is limited to the same class or any subclass inherited from that class. This access through inheritance can access base class elements in the derived class depending on the mode of inheritance.
Default Modifier
When no access modifier is specified for a class, method, or data member, it is said to have the default access modifier. In other words, the default members access is limited to the current or the same package.
Classes not in the same package cannot access or use the default members.
