Difference Between Data Hiding and Data Encapsulation (With Table)

Programming is a whole different language. It is a whole different world in computers. One of its major is OOP which is object-oriented programming. What it does is help to develop the program and software using different objects on its own. Here, these objects are created via making blueprints, and that is called a class.

That class contains methods and members of the data. The class has some attributes and behavior declined at an early stage only, and these are included in the object itself. Data hiding and data encapsulation are two of the concepts of this programming.

Data Hiding vs Data Encapsulation

The difference between data hiding and data encapsulation is that data hiding is a process in the programming in which it protects the members of the class from any sort of access that is unauthorized, while data encapsulation, on the other hand, is another process where it wraps the members of the data and the methods used into a single unit.

The class consists of data members and the methods that are going to be used, and data hiding is the process where it helps those members of the class from any unauthorized access. Well, all in all, it is a mechanism that is based on improving security. Java, which is a programming language they use program modifiers.

In the programming language OOP, the programs of software can be easily modeled by using the objects in the program. Each of these objects has attributes and behaviors of its own. Data encapsulation of one of the major pillars of OOP programming. What it does is combine the data members and the process that is being used into a single unit for a better experience.

Comparison Table  Between Data Hiding and Data Encapsulation

Parameters of ComparisonData HidingData Encapsulation
What is it?Data hiding is the process in which it protects the data members from any unauthorized access.Data encapsulation is combining the data members and the methods into a single unit for further convenience.
Focuses onData hiding has its focus on hiding the access and securing the data along with it.Data encapsulation has its focus on hiding and minimalizing the complexity of the system.
ProcessIt is the process of protecting.It is a process of achieving the limit of data hiding.
AccessIt uses a private modifier for access.Data encapsulation uses all sorts of modifiers, private, public, and protected.
ProgramData hiding is a concept of the program OOP.Data encapsulation is a pillar of the program OOP.

What is Data Hiding?

As mentioned before, data hiding protects the members of the class from any unauthorized access. Well, it is a lot more than just this. The data members and their objects of the public are usually accessible to the other objects of the class, while the protected members by data hiding are only accessible to the same class of it and their subclass. While there are private members too who are only and only accessible to the objects within the class.

The programmer who is operating all this can also use these access modifiers to their applications. He/she can also use the public modifiers only if it is not mandatory to restrict the members that are accessing them. OOP has many concepts too, inheritance is one of them.

What is Data Encapsulation?

OOP is quite a vast programming language having different aspects, majors, concepts, and pillars. One of its major pillars is encapsulation which combines the methods being used and the data members who are using the methods into a single unit to make it better for further usage.

Well, this grouping of data members and the methods used is beneficial as it makes it more manageable for anyone, plus it reduces the complexity too. There are different types of classes, and each type of class has different types of members. Like a rectangle class would have members like width and length. The methods would be like getDetails, getArea, and display. Then these members and methods are combined, which will be then called a rectangle.

Main Differences Between Data Hiding and Data Encapsulation

  1. The main difference between data hiding and data encapsulation is that the way they are used and perform while being from the same programming language. Data hiding is the process in which it protects the data members from any unauthorized access, while Data encapsulation is combining the data members and the methods into a single unit for further convenience.
  2. They both have their differences in the focus areas. Data hiding has its focus on hiding the access and securing the data along with it, while Data encapsulation has its focus on hiding and minimalizing the complexity of the system.
  3. Data hiding is a process of protecting, while data encapsulation is a process of achieving the limit of data hiding and being different processes. They are both aligned in different sectors of the program.
  4. When it comes to modifiers and their usage, both of them have their own choices. Data hiding uses private modifiers for access, while Data encapsulation uses all sorts of modifiers, private, public, and protected.
  5. Data hiding is a concept of the program OOP, but Data encapsulation is a pillar of the program OOP.

Conclusion

It now concludes that object-oriented programming has two concepts which are data hiding and data encapsulation. Except for the fact that they belong to the same programming language, they both are completely different from each other. Data hiding is the process in which it protects the data members from any unauthorized access. While in encapsulation, members and methods are combined into a single unit. This is done so as to make it more convenient for further use.

References

  1. https://ieeexplore.ieee.org/abstract/document/5387237/
  2. https://link.springer.com/chapter/10.1007/978-3-540-73551-9_1
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