We will get the metadata of below class named Guru99Base. 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.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 java.lang and packages provide classes for java reflection. The class provides many methods that can be used to get metadata, examine and change the run time behavior of a class. Field: This class is used to gather declarative information such as datatype, access modifier, name and value of a variable. Java Reflection is a process of examining or modifying the run time behavior of a class at run time.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 // String.class here is the parameter type, that might not be the case with you Method method clazz.getMethod ('methodName', String.Example 1: How to get Metadata of Class.How to get complete information about a class.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. In this tutorial, we'll address the code as unit test methods. Now, let's call the two static methods using the Java Reflection API. Both methods accept a String argument and return a String as the result. File Name : com/bethecoder/tutorials/reflection/InvokeMethod. It has two static methods, one public and one private. The following example shows how to invoke static and instance methods using java reflection API. Java Reflection is the process of analyzing and modifying all the capabilities of a class at runtime. The GreetingAndBye class looks pretty simple.
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