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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What method do you use to get a Class object from its name?
💡 Hint: Think about how we reference classes in Java.
Question 2
Easy
How do you create an instance of a class using reflection?
💡 Hint: Remember the method that allows constructor invocation.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
How do you create an object of a class using reflection?
- Using `new Class()`
- Using `clazz.newInstance()`
- Using `clazz.getDeclaredConstructor().newInstance()`
💡 Hint: Focus on how constructors are called.
Question 2
True or False: Reflection can access private members of a class.
- True
- False
💡 Hint: Consider the permissions granted by reflection.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Create a Java program that uses reflection to instantiate an object of a class you define, accesses its private field, and prints its value.
💡 Hint: Use `getDeclaredField` and `setAccessible(true)` for accessing the private field.
Question 2
Write a code snippet that shows how to handle exceptions that may arise when using reflection to create an object.
💡 Hint: Look at the exceptions that are thrown when construction fails.
Challenge and get performance evaluation