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.
Based on the IS curve and LM curve you have derived in Q36 and Q37, what is the equilibrium income?
If quantities of all commodities change in the same proportion then
The A.M. and G.M. of a distribution are 12.5 and 10 respectively. Then the H.M. is
Which of the following is true about Omission(Overfitted) and Inclusion(Underfitted) type of the specification error
Lorenz Curve is given by:
L(x) = 1/3 (X^3) + 2/3 (x^5). Calculate Gini Coefficient.
Which of the following is not a test related to Heteroscedasticity?
Park Test is used for which of the following?
If the R2 value for a regression line is 0.75 for 20 observations. What is the adjusted Rsquare value if the number of independent variables ...