T
- the type of the class modeled by this
Class
object. For example, the type of
String.class
is
Class<String>
. Use
Class<?>
if the class being modeled is unknown.
类的类型设计是通过这类的object对象,例如,string类的类型是class<String>.
使用这个class<?>被设计的是不知道的
All Implemented Interfaces:
public final class Class<T>
Instances of the classClass
represent(表现,代表)classes and interfaces in a running Java application. An enum is a kind of class and anannotation(批注)is a kind of interface. Every array also belongs(被..存放) to a class that is reflected(反射)as aClass
object that is shared by all arrays with the same element type and
number of dimensions(规模). The primitive Java types (boolean
,byte
,char
,short
,int
,long
,float
, anddouble
), and the keyword(关键字)void
are also represented asClass
objects.
类的实例表现类和接口在java的应用程序中,枚举是类的一种,和..是一种接口。
每个数组被存放一个类,这个类是作为一个类的object对象反射,object对象反射类通过数组中这相同元素类型和
Java类型boolean
,byte
,char
,short
,int
,long
,float
, anddouble和关键字 void 是作为一个类对象
Class
has no public constructor(构造). Instead(反而)Class
objects are constructedautomatically(自动的)by the Java Virtual Machine as classes are loaded and by calls to thedefineClass
method in the class loader.
类没有共有的构造函数,反而类被自动加载通过Java虚拟机调用defineClass
方法
The following example uses aClass
object to print the class name of an object:
void printClassName(Object obj) { System.out.println("The class of " + obj + " is " + obj.getClass().getName()); }
ClassLoader.defineClass(byte[], int, int)
,
Serialized Form