Question
What is the purpose of Inheritance in Object-Oriented
Programming?                           ÂSolution
Inheritance is a key feature of Object-Oriented Programming (OOP) that allows a class (called the derived or child class) to inherit properties and methods from another class (called the base or parent class). This helps in reusing code and establishing hierarchical relationships between classes. The derived class can access and modify the behaviors of the base class, and it can also add its own additional methods and properties.
- Why It Is Important: Inheritance promotes code reuse , reduces redundancy, and enhances maintainability. It also enables the creation of a hierarchical relationship between classes, where a base class defines general behaviors, and derived classes specialize or extend those behaviors. This leads to a more organized and structured codebase.
- Real-World Example: Consider a class Vehicle with methods like start() and stop() . A subclass Car can inherit these methods from Vehicle and add its own methods, such as playMusic() , without having to re-implement the start() and stop() methods.
- Â To allow one object to create another object: This describes object creation or composition , not inheritance.
- To enable the hiding of internal details of an object: This refers to encapsulation , not inheritance.
- To allow the association between two independent objects: This refers to association or aggregation , not inheritance.
- To enable communication between objects of different types: This is an example of polymorphism or message passing , not inheritance.
The important aspect of data warehouse environment is that data found within the data warehouse is
- What is the role of Artificial Intelligence (AI) in modern business applications?
In an operating system, which of the following scheduling algorithms minimizes the average waiting time for all processes?Â
- Which of the following statements about Constructors in Object-Oriented Programming is correct?
In the context of Cross-Site Scripting (XSS), what is the primary reason why stored XSS is considered more dangerous than reflected XSS?
What will be the output of the following code when implementing the SCAN I/O scheduling algorithm?
def scan(requests, head, direction):
 ...
Which numerical method is commonly used to find the roots of nonlinear equations in statistical computing?  Â
- Which of the following is NOT a property of database transactions according to the ACID model?
Which of the following is not a method of inter-process communication (IPC) in modern operating systems?Â
- Which of the following protocols is used for resolving IP addresses to MAC addresses in a network?