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#Java reflection api pdf how to

Public Class getInterfaces() : Returns an array of interfaces implemented by the specified class.public Class getSuperclass(): Returns the super class reference.Public String getName (): Returns the name of the class.Modifier: This class is used to gather information about a particular access modifier.Constructor: This class is used to gather declarative information such as access modifier, name and parameter types of a constructor.Execute a string as if it were a source code statement. Method: This class is used to gather declarative information such as access modifier, return type, name, parameter types and exception type of a method. the name of the class, the name of parent classes, fields, methods.Field: This class is used to gather declarative information such as datatype, access modifier, name and value of a variable.

#Java reflection api pdf how to

Example 4: How to get Metadata of Constructorsįollowing is a list of various Java classes in to implement reflection.

Example 3: How to get Metadata of Method.

Example 2: How to get Metadata of Variable.

Example 1: How to get Metadata of Class.

JWT Token Overview JSON Web Token (JWT) is an open standard defines a compact and self-contained way for securely transmitting information between parties as a JSON object.

How to get complete information about a class Create and Validate JWT Token in Java using JJWT.

The package provides many classes to implement reflection java.Methods of the class is used to gather the complete metadata of a particular class.

One advantage of reflection API in Java is, it can manipulate private members of the class too. Reflection API in Java is used to manipulate class and its members which include fields, methods, constructor, etc. Java Reflection is the process of analyzing and modifying all the capabilities of a class at runtime.