Reflections

Reflections

      Reflections

      Getting the class object

      Find the Package details

      Get the Super class of this class

      Interfaces implemented by this class

      Get all the constructors declared in this class

      Fields accessing using reflection

            Getting and Setting Field Values

      Accessing Private fields

      Reflection - Methods

            Get Method Parameters and Return Type

            Invoke Method using Method Object

            Invoke static methods using Reflection

            Accessing Private Methods

      Reflections and Annotations

            Accessing class Annotations

            Accessing Method Annotations

            Accessing Field Annotations

            Accessing Parameter Annotations

            Check whether a field is annotated with given annotation or not

      Reflections and Arrays

      Class Loaders

            Explicit vs Implicit class loading

      Change the value of final variable

      When is InstantiationException thrown?

      newInstance(): Create an instance of the class

      Constructor: Define an object using constructor arguments

      How to check given object is primitive or not?

      isInstance(): Check object compatibility of a class

      instanceof vs isInstance()

      Check whether an array is of primitive type or not

      Check whether an array is a primitive wrapper array or not

      Dynamic proxies

      Set value to object property

      get value of object property

      Java: Get all the fields and inherited fields of a class

      Java: get the public static final constant variable name by its value

      Java: Get the field data type using reflection

      getMethods() vs getDeclaredMethods() in Java reflection

      How to check whether a method exists in a Java class or not?

      How to get the generic arguments of a method return type

      Unset the properties of given type using reflection in Java

      Utility class to work with reflections in Java

      Utility class to generate getter and setter methods for a class property

      Utility class to get detailed information about the properties of a class