![]() ![]() forName() Method:įorName() static method from class allow us to create or get Class object. Below are the methods allow us to get metadata using reflection: 1. ![]() It require a class object to get the metadata using reflection. Using class object get or fetch class metadata at run time.getConstructors() are some of the common and most used method from class to get or fetch metadata.īelow are the steps to get or read metadata using reflection: IsInterface(), getSuperclass(), getName(), getClass(), getMethods(), getFields(). package is having Field, Method, Constructor classes which provides us the capability to fetch or modify public as well as private metadata related to class, field, constructor and method. related to class, field, constructor and method. It allow us to fetch or get metadata information like scope, modifier, name, parameters, method invocation etc. C++ Programming - Beginner to Advanced Java Programming - Beginner to Advanced C Programming - Beginner to Advanced Web Development. Java Reflection helps us to read or modify metadata related to class, fields, methods and constructors at run time. Data Structure & Algorithm-Self Paced(C++/JAVA) Data Structures & Algorithms in Python Explore More Self-Paced Courses Programming Languages. Let’s try to understand it with an example. The reflection layer wraps the actual exception thrown by the method with the InvocationTargetException. This blog, for sure, will help all of us understand everything about Java reflection. It mainly occurs when we work with the reflection layer and try to invoke a method or constructor that throws an underlying exception itself. To create a custom exception, we have to extend the class. While the code throws FileNotFoundException, its not clear what the exact cause is whether the file doesnt exist or the file name is invalid. I am confident that most of us have heard of the Java reflection API and intend to read or gather information about it. The code above is a classic way of handling Java checked exceptions. ![]()
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