5 Questions
What can be used to examine or modify the runtime behavior of a class?
The java)lang.Class class
What is the main purpose of the Reflection API?
To get the object of Class class
What is a disadvantage of using reflection?
It can be slow
What is the main purpose of java reflection?
To inspect and modify the runtime behavior of a class
What is usually recommended when using reflection?
To avoid using it
Study Notes
-
Reflection is a process of examining or modifying the run time behavior of a class at run time.
-
The java.lang.Class class provides many methods that can be used to get metadata, examine and change the run time behavior of a class.
-
The java.lang and java.lang.reflect packages provide classes for java reflection.
-
The Reflection API is mainly used in:
-
getting the object of Class class
-
getting the instance of Class class
-
using the .class syntax
-
determining the class object
-
using reflection, one can break the principles of encapsulation.
-
Reflection is an advanced feature that can be used by programmers or developers who have a good knowledge of the basics of the language.
-
Reflection can be used to get information about the structure of objects or the methods that are implemented by objects.
-
Reflection can be slow because it has to perform a lot of operations on the objects that it is looking at.
-
It is usually advisable to avoid using reflection because it can slow down the application.
Learn about the Java Reflection API, its capabilities, and its impact on runtime behavior. Understand when to use reflection and its potential drawbacks for application performance.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
