Does garbage collection guarantee that a program will not run out of memory? Why Char array is preferred over String for storing password?
What are different ways to create String Object? What is a Lambda Expression? What's its use? Why do we need Inner classes? Encryption is simply changing the data. So encapsulation - The boy whom we saw yesterday walked away.
Whom we saw yesterday has been encapsulated. Encapsulation basically about hiding the state of object with the help of modifiers like private,public,protected etc. Encryption is the conversion of electronic data into another form, which cannot be easily understood by anyone except authorized persons. VPN tunneling utilizes many protocols that are not equally efficient in securing your data traveling over a public network, however.
They are considered slightly outdated and offer less security as compared to a few other network protocols. Once an organization agrees on the protocol to use for VPN tunneling, they need to establish a model for initiating a VPN connection. They can select between two main types of VPN tunneling, which are known as 'Voluntary' and 'Compulsory' tunneling. The choice of a network protocol and connection method for VPN tunneling depends on the specific use-case scenario, but in any case, organizations need to have reliable encryption algorithms in place and adopt measures to enforce the use of a VPN connection.
The concept of VPN tunneling depends on an organization's choice of network protocol to transfer your data in a secure manner and the ability to hide their digital address and configuration details.
Finally, organizations should be aware that VPN tunneling is efficient only in combination with a resilient cybersecurity strategy that includes managed detection and response, endpoint monitoring, and threat intelligence to combat the corruption of end-user machines. Datashield, an ADT company, has been a leading managed cybersecurity services provider for over a decade.
Our consultative process and approach to managed detection and response help our clients establish a truly resilient cybersecurity strategy. Datashield's Resource Library Read all of our news, articles, reviews, and more in our company blog. All Posts.
What is a VPN? It's all about security since we need to protect the internal states of a particular object. Abstraction For simplicity, hide the internal implementations is called abstraction. In abstraction, we only focus on the necessary things.
Basically, We talk about "What to do" and not "How to do" in abstraction. Security also can be achieved by abstraction since we are not going to highlight "how we are implementing". Maintainability will be increased since we can alter the implementation but it will not affect our end user.
This is why I said like above encapsulation is a kind of abstraction. So Where is the difference? The difference is the abstraction is a general one if we are hiding something from the user for simplicity, maintainability and security and, encapsulation is a specific one for which is related to internal states security where we are hiding the internal state data hiding and we are providing methods to access the data and those methods implementation also hidden from the outside person abstraction.
Example public int add int a, int b ; This method definition tells us that if you give two variables it will do addition and return the result. RCvaram RCvaram 2, 2 2 gold badges 13 13 silver badges 29 29 bronze badges. This might be a good explanation but still it doesn't answer the question, I guess.
The actual question is, if both are about hiding data and one is a specialization of the other as you have said , then why they are separate concepts in OOPS? If a person is a millionaire and a billionaire then we usually omit the millionaire part.
Encapsulation: Hiding something, sort of like medicine capsule. Abstraction: Abstraction means hiding logic or implementation. Zeeshan Haider Zeeshan Haider 77 5 5 bronze badges.
A very practical example is. It just shows what should be done. Then those Encryption classes have their own way of implementing encryption which protects their implementation from outsiders This is called Encapsulation.
Hides how it should be done. Remember: what should be done vs how it should be done. Hiding complications vs Protecting implementations. Monu chandramohan Monu chandramohan 1 1 silver badge 10 10 bronze badges. Iqbal Haider Iqbal Haider 1 1 gold badge 2 2 silver badges 9 9 bronze badges. Yes, it is true that Abstraction and Encapsulation are about hiding. CodeFu CodeFu 1 1 silver badge 13 13 bronze badges. Can you explain how this answer differs from the 12 other existing answers?
Let me explain it in with the same example discussed above. Kindly consider the same TV. Hope it clarifies a bit! Surya Surya 2 2 silver badges 7 7 bronze badges. Morteza Bandi Morteza Bandi 3 3 silver badges 14 14 bronze badges. Abstraction In Java, abstraction means hiding the information to the real world.
Encapsulation: Encapsulation is one level down of abstraction. If I have individual package one for wine and another one for chocolate, and if all the classes are declared in the package as default access modifier, we are giving package level encapsulation for all classes.
Within a package, if we declare each class filed member field as private and having a public method to access those fields, this way giving class level encapsulation to those fields.
Shaan Shaan 1 1 gold badge 4 4 silver badges 13 13 bronze badges. Just a few more points to make thing clear, One must not confuse data abstraction and the abstract class. They are different. Google search says the English word abstraction means "Existing in thought or as an idea but not having a physical or concrete existence. So when do you actually use abstract methods? When a method from base class will differ in each child class that extends it. And so you want to make sure the child class have this function implemented.
This also ensures that method, to have compulsory signature like, it must have n number of parameters. So about abstract class! But why? A class with abstract method must be prevented from creating its own instance because the abstract methods in it, are not having any meaningful implementation.
You can even make a class abstract, if for some reason you find that it is meaning less to have a instance of your that class. An Abstract class help us avoid creating new instance of it! S Vinesh S Vinesh 1 1 gold badge 4 4 silver badges 15 15 bronze badges. Rasika Weragoda Rasika Weragoda 12 12 silver badges 12 12 bronze badges. Can you elaborate the answer? Abstraction is hiding internal implementation details of how work is done.
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