Consider the following method.
public void changeValues(int i, Card c) {
i = 15;
c.setSuit("Clubs");
}
Now consider the following snippet of code that calls the method defined above.
int num = 12;
Card fiveOfSpades = new Card(5, "Spades");
System.out.println("Before method call:");
System.out.println(num);
System.out.println(fiveOfSpades.getSuit());
changeValues(num, fiveOfSpades);
System.out.println("After method
call:");
System.out.println(num);
System.out.println(fiveOfSpades);
What is the output of this code?
What is meant by encapsulation?
In general, encapsulation is the inclusion of one thing within another thing so that the included thing is not apparent. Decapsulation is the removal or the making apparent a thing previously encapsulated.
What is the purpose of data encapsulation?
It refers to the bundling of data with the methods that operate on that data. Encapsulation is used to hide the values or state of a structured data object inside a class, preventing unauthorized parties' direct access to them.
What is the concept of encapsulation in OOP?
What does encapsulation mean: In object-oriented computer programming (OOP) languages, the notion of encapsulation (or OOP Encapsulation) refers to the bundling of data, along with the methods that operate on that data, into a single unit. Many programming languages use encapsulation frequently in the form of classes.
Why is it important to encapsulate data members in the private interface when we design a class?
In abstraction, implementation complexities are hidden using abstract classes and interfaces. While in encapsulation, the data is hidden using getters and setters methods. Encapsulation provides explicit barriers among different abstractions and thus leads to a clear separation of concerns.