java reflection invoke method without parameters

We will discuss each of the methods with an example: 1) The forName() method of Class class There are three ways to get the object of Class class. How can we get the object of Class class? It returns the total number of constructors of this class. Public Constructor getDeclaredConstructors() This method returns the method class instance. Public Method getDeclaredMethod(String name,Class parameterTypes) It returns the total number of methods of the class. It returns the total number of fields in the class. It returns the superclass or parent class reference. This method checks if it is an interface. This method loads the class and returns the reference of Class. Public static Class forName(String className) It provides methods to examine and change the behavior of the class at runtime.Ĭommonly used methods of the Class class: Method.It provides methods to get the metadata of a class at runtime.Integrated Development Environment(IDEs) such as Eclipse, MyEclipse, NetBeans, etc.The Reflection API of Java is mainly used in: Through reflection, we can call a method at runtime independent of their access specifier.Reflection gives us data about the class with the associated objects and the methods for that class.The classes required for reflection in Java are present in the package.Some points about Reflection in Java are: There are two packages- java.lang and that provide classes for Java Reflection.

The is a class that provides many methods that we can use to get metadata of the class and to examine and change the runtime behavior of a class. It is a process of examining or modifying the run time behavior of a class at run time. Reflection in Java is an API(Application Programming Interface) that is used at runtime to analyze or change classes, methods, and interfaces. Keeping you updated with latest technology trends, Join TechVidvan on Telegram What is Reflection in Java?

Java reflection invoke method without parameters