Myclass.class与new MyClass（）有什么区别？

Question

Team, While learning java (specially generics), i could see two different parameter in the method (.class and object reference) . When to use .class option and new myclass()? give me some example to understand

Answer 1

new MyClass(): will create an instance/object of type MyClass

MyClass.class: is a "class literal" - a simple way of getting the Class for a particular type. in order to extract the metadata about the class such as fields and methods.

Refer to the Java Language Specification for more details. (15.8.2 Class Literals)

Answer 2

 MyClass obj = new MyClass();

it returns a new object of type MyClass and will have all the global variables and methods defined in MyClass but,

Class obj1  = MyClass.class;

here obj1 cannot be treated as an object of MyClass. obj1 is an object of Class.java(a class pre defined in java). It does not have all the informations of MyClass. but some methods defined in Class.java has some generic information of MyClass like: object.name will give MyClass