How do you invoke a method of reflection in a class?

3. Obtaining a Method Object

1. 3.1. getMethod() We can use getMethod() to find any public method, be it static or instance that is defined in the class or any of its superclasses.
2. 3.2. getDeclaredMethod() We can use getDeclaredMethod() to get any method defined in the class.

What does invoke method do?

Java Method invoke() Method The invoke () method of Method class Invokes the underlying method represented by this Method object, on the specified object with the specified parameters. Individual parameters automatically to match primitive formal parameters.

What is invoke () in Java?

Java Invoke is a synchronous activity that can be used to invoke a Java class method. You can construct an instance of the specified Java class, if you invoke the constructor for the class.

When do I need to invoke a method in reflection?

Reflection provides a means for invoking methods on a class. Typically, this would only be necessary if it is not possible to cast an instance of the class to the desired type in non-reflective code.

What happens when the Invoke method is invoked?

If this method overload is used to invoke an instance constructor, the object supplied for obj is reinitialized; that is, all instance initializers are executed. The return value is null. If a class constructor is invoked, the class is reinitialized; that is, all class initializers are executed. The return value is null.

When to use dynamic method lookup in reflection?

Reflection uses dynamic method lookup when invoking virtual methods. For example, suppose that class B inherits from class A and both implement a virtual method named M. Now suppose that you have a MethodInfo object that represents M on class A. If you use the Invoke method to invoke M on an object of type B,…

How to invoke a method in C #?

Open Visual Studio 2012/2013 and create a new C# class library project called Domain. Add the following Customer class to it: Console.WriteLine (“Within Customer.DoVoidMethod. Parameters: {0}, {1}”, intParameter, stringParameter);