Looking for a job--a mess

Reflection mechanism:

* GetFields () differs from Getdeclaredfields (): GetFields () can only access fields declared as public in a class, private fields are inaccessible, and public methods inherited from other classes can be accessed. Getdeclaredfields () Ability to access all fields in a class, regardless of public,private,protect, cannot access methods inherited from other classes

* GetMethods () differs from Getdeclaredmethods (): GetMethods () can only access methods declared as public in a class, private methods that it cannot access, and access to public methods inherited from other classes. Getdeclaredfields () Ability to access all fields in a class, regardless of public,private,protect, cannot access methods inherited from other classes

* GetConstructors () differs from getdeclaredconstructors (): GetConstructors () can only access constructors declared as public in a class. Getdeclaredconstructors () Access to all constructors in the class, regardless of Public,private,protect

access to private properties and methods to suppress Java access checks by using the Setaccessible () method in the AccessibleObject class (the base class of the Constructor, field, and method classes) before use .

The difference between beanfactory and Factorybean: http://chenzehe.iteye.com/blog/1481476

Looking for a job--a mess