SE601P Quiz 9

Quiz SE601P 9 - Yfyvy

Human Resource Management (Virtual University of Pakistan)

Scan to open on Studocu

Studocu is not sponsored or endorsed by any college or university

Quiz SE601P 9 - Yfyvy

Human Resource Management (Virtual University of Pakistan)

Scan to open on Studocu

Studocu is not sponsored or endorsed by any college or university

SE601P - Quiz No.9

Date: 01 July 2025

Q1. Which of the following is an example of a good class design guideline?

1. Avoiding code documentation and comments
2. Avoiding encapsulation and exposing class internals directly
3. Using composition over inheritance when appropriate
4. Having large classes with hundreds of lines of code

Correct answer: Using composition over inheritance when appropriate

Q2. Which of the following is a bad practice for class design?

1. Following the open-closed principle for class extension
2. Overusing global variables within a class
3. Having a class with only a single responsibility
4. Using appropriate access modifiers for class members

Correct answer: Overusing global variables within a class

Q3. Which of the following is a good guideline for class design?

1. Creating classes that adhere to the Single Responsibility Principle (SRP)
2. Using long and descriptive class names
3. Having a class with multiple responsibilities
4. Making all class members public by default

Correct answer: Creating classes that adhere to the Single Responsibility Principle (SRP)

Q4. Why is loose coupling considered a good design guideline for classes?

1. It enhances code reusability and modularity
2. It increases the chances of code conflicts and errors
3. It decreases the ease of testing and debugging
4. It reduces code readability and maintainability

Correct answer: It enhances code reusability and modularity

Q5. What is the purpose of the final keyword in the following Java code snippet? public class Calculator { public static final double PI = 3.14159; public double calculateCircleArea(double radius) { return PI * radius * radius; } public static void main(String[] args) { Calculator calculator = new Calculator(); double area = calculator.calculateCircleArea(5); System.out.println("Area: " + area); } }

1. It ensures that the Calculator class cannot be extended.
2. It specifies that the calculateCircleArea method cannot be overridden.
3. It indicates that the PI variable cannot be changed.
4. It prevents the area variable from being modified within the main method.

Correct answer: It indicates that the PI variable cannot be changed.

VU TOOLKIT BY PARADOXCIAL