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24.2.1. Class Object

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  1. 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. 2.

    Describe the potential risks associated with using reflection to access private members.

    Hint

    Think about why encapsulation is important in OOP.

  3. 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. 4.

    True or False: You can directly access private methods without using reflection.

    • True
    • False
    Hint

    Consider the concept of access modifiers.

  5. 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. 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

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Quiz

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

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Challenge 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