how to use reflection

1. What is reflection?MSND: Reflection provides objects (type types) that encapsulate assemblies, modules, and types. You can use reflection to dynamically create an instance of a type, bind the type to an existing object, or get the type from an

1. Automatic box packing and unpacking.The wrapper class in Java.Wrapper classes are wrapping basic data in Java, and you can wrap a base type into a class type.Basic data typesFour categories of eight.1. Integer byte short int long2. Float type

Assemblies contain modules, and modules contain types, and types also contain members. Reflection provides an object that encapsulates assemblies, modules, and types. You can use reflection to dynamically create an instance of a type, bind the type

http://blog.csdn.net/com360/article/details/14125683Java, there is a concept called "ClassLoader" (ClassLoader), it is the role of dynamic loading class files. There is a ClassLoader class in the standard Java SDK that allows you to load the

Reprint please specify the source http://www.cnblogs.com/Wxtrkbc/p/5590004.htmlOriginally the idea is to implement an FTP server, to implement the user login registration and file breakpoint upload download, and so on, the result is to do even the

first, what is a commentSpeaking of annotations, you have to mention what metadata is (metadata). The so-called meta-data is data data. In other words, metadata is descriptive data. Just like the fields in a data table, each field describes what the

C # reflection, . Net is often used to dynamically load DLL, and DLL may contain various parameters, methods, forms. How to call to dynamically load these parameters, methods, and forms?   In C #, we need to use reflection. First, we need to

Java annotation tutorial and custom Annotation Java annotations provide information about the code and have no direct impact on the Code Annotated with them. In this tutorial, we will learn Java annotations, how to customize annotations, how to use

Today the project manager sends out a task and needs to test 20 interfaces to see if the push and receive data are normal. Since the data in the docking transfer is a string in XML format, I take the ready-made data, Sir, to push past data and store

Original address: http://blog.csdn.net/haoxingfeng/article/details/9167895When we integrate with spring, for consumers we have three different types of listeners to choose from, they are messagelistener,sessionawaremessagelistener,

PopupMenu is a very lightweight component in Android. Compared with Popupwindow, PopupMenu's ability to define itself is smaller, but it is more convenient to use.First on:The following features are implemented in this example:1. Force the icon for

We continue to learn the fundamentals of C #, and this article focuses on the critical step of our C # programmers moving toward Advanced C # programmers.Some friends will say that this is not the case, I do not have to reflect on the development of

We are currently looking at the source code of the HadoopRPC framework. Before learning more about this, we need to review some basic knowledge. 1. java reflection mechanism and dynamic proxy 2. java Network Programming 3. javaNIO first summarizes

Enum provides a base class for enumeration. The base type can be any integer except Char. If the basic type is not explicitly declared, Int32 is used. Programming Languages generally provide syntax to declare an enumeration consisting of a group of

An essential step for object-oriented design is "instantiation". If instantiation is closely integrated with specific implementations ...... There is no problem with simple creation. However, if we do not create a simple one, we need to change the

25. Create and use your own class loaderExcept for the root loader, the JVM is an instance of the ClassLoader subclass. programmers can use the extends ClassLoader subclass and override its method to implement a custom class loader.Obtain the

Problem and a solution Today, the company's JAVA project encountered a problem: when the xls file is generated, if there is a large amount of data, ArrayIndexOutOfBoundsException may occur.Google found a BUG in the jxl package used in the item (open-

I. Reflection: The reflection mechanism means that the java program has the ability to view itself during runtime and can know all the attributes and methods in the class. Reflection can be used to obtain any attributes and methods in the class.

(C #) use reflection to dynamically call class members To use reflection to dynamically call class members, you need a method of the Type class: InvokeMember. The statement for this method is as follows (excerpted from MSDN ):Public object

A isinstance (OBJ,CLS) and Issubclass (Sub,super)Isinstance (obj,cls) checks if obj is an object of class CLS1 class Foo (object): 2 pass3 4 obj = Foo () 5 6 isinstance (obj, Foo)Issubclass (sub, super) check if the sub class is a derived