Question
Which of the following best describes the concept of
abstraction in object-oriented programming (OOP)?ΒSolution
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.
Rahul invested a certain amount at a simple interest rate of 8% per annum, and after 6 years, it grew to Rs. 1,850. If he had instead invested the same ...
What will be the net CI on Rs. 8000 for 4 years at 20% p.a compounded annually?
- Priya invests a sum of money at an annual compound interest rate of 8%. After 4 years, the interest accumulated is Rs. 1120. If she increases her initial i...
A certain sum of money becomes 5000 in 6 years and Rs. 6240 in 10 years at any certain rate of simple interest. Find the principal amount.
- If Rs. 80,000 is invested at 9% per annum simple interest for 6 years, how much amount will be received in the end?
Shivam invested 24000 at 15% p.a. simple interest for βxβ months. If at the end of βxβ months, he received a total amount of Rs.26400. What is t...
Simple interest and compound interest (compounded annually) earned on a sum at the end of 2 years at a certain rate of interest p.a. are Rs. 3500 and Rs...
A sofa of MRP 1500 is available in Rs.300 cash down payment and 9 monthly equal installment of Rs.150 each. Find the rate of interest per annum.
Rs. 6,600 is invested in scheme βAβ offering simple interest of 13% p.a. and Rs. 2500 in scheme βBβ offering simple interest of 4% p.a. What is ...
Puneet invested Rs. 28,000 for 4.5 years, while Qureshi invested Rs. 8,000 more than Puneet for a duration of 3.5 years in a business. If their combined...