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24.2.1. Class Object
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6 questions on this section. Wrong answers show you what to read again.
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Revision test
Mixed questions from across the chapter. Your answers get marked.
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Flashcard drill
4 cards from this lesson. Good the night before a test.
Try these first
- 1.
What method do you use to retrieve all fields, including private ones, from a class?
Hint
Look for a method that retrieves all declared fields.
- 2.
Describe the potential risks associated with using reflection to access private members.
Hint
Think about why encapsulation is important in OOP.
- 3.
What does the Class object represent in Java?
- A blueprint for objects
- A representation of loaded classes
- A form of metadata
Hint
Focus on what is meant by a Class object.
- 4.
True or False: You can directly access private methods without using reflection.
- True
- False
Hint
Consider the concept of access modifiers.
- 5.
Create a Java program using reflection that retrieves and lists all the methods from a class named 'Employee'.
Hint
Don’t forget to handle exceptions when dealing with reflective operations.
- 6.
Write a code snippet that demonstrates dynamically creating an object of a class with a constructor that takes parameters.
Hint
Ensure the constructor matches the parameter types correctly.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
Get your answers marked and your progress tracked
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
Get your answers marked and your progress tracked
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting