Java reflection mechanism and method Invoke details

Java reflection mechanism

Java reflection mechanism is to know all the properties and methods of any class in the running state; Any method of any object can be called; This kind of dynamically acquired information and the function of dynamically calling object methods are called the reflection mechanism of Java language.

Java reflection mechanism mainly provides the following functions: judge the class of any object at runtime; Construct the object of any class at runtime; Judge the member variables and methods of any class at run time; Call the method of any object at run time; Generate dynamic proxy.

1. Get the attribute of an object