Question
Which of the following best describes the concept of
abstraction in object-oriented programming (OOP)?Solution
Abstraction in OOP is a fundamental concept that involves hiding the complex internal details of a system and exposing only what is necessary to the user. This simplifies the interaction with objects and promotes reusability, as the user can interact with high-level methods without needing to understand their internal workings. It allows developers to create complex systems while maintaining a clear and simplified interface. In practical terms, abstraction can be achieved through the use of abstract classes and interfaces, where only the essential behavior is defined, and the details are hidden. Why other options are wrong: A) This describes encapsulation, not abstraction, which involves combining data and methods into a class. C) This is method overloading, where multiple methods share the same name but differ in parameters or implementation. D) This refers to inheritance and polymorphism, not abstraction. E) This describes polymorphism, which allows objects to behave differently based on the context.
Arun's average score across six subjects, including English and Mathematics, is recorded as 55. However, there was an error in reporting his marks for E...
If A = {{2}, {(3,4}, {6}} which of the following is correct?
4m = Sec A, 4/m = Tan A, find the value of 4( m2 - 1/m2)
Find the minimum value of sec x + cosec x:
In the question, two equations I and II are given. You have to solve both the equations to establish the correct relation between x and y and choose the...
If A and B are both symmetric matrices of the same order, then which of the following is necessarily skew-symmetric?
The average weight of 14 students in a class is 30 kg. Two more students weighing 20 kg and 24 kg join the class. What is the average weight of the clas...
The following table shows the number of cars sold by a dealership in the first six months of the year.
Which of the following scheduling algorithms is designed to reduce the turnaround time and waiting time in a multitasking environment?
Find the value of x in 5 (5x – 6) = 25 (3x – 3)