java map

Virtual Machine byte code file obtained by the class to create objects. Available class Class methods are implemented in java code,

 1 package javase;
 2 
 3 import java.lang.reflect.Constructor;
 4 import java.lang.reflect.InvocationTargetException;
 5 
 6 public class ReflextDemo {
 7     
 8     public static void method2() throws ClassNotFoundException, NoSuchMethodException, SecurityException, InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
 9         
10         String name = "test.Person";//把类名的路径存到字符串
11         Class clazz = Class.forName(name);//Get the path through the byte code file, creating an object 
12 is          the Constructor <the Person> CON = clazz.getConstructor (String. Class , int . Class ); // Get constructor 
13 is          Object obj = con.newInstance ( "small strong", 10) ; // Create example 
14          
15      }
 16  
. 17      public  static  void the method1 () throws a ClassNotFoundException, an InstantiationException is, {IllegalAccessException
 18 is          
. 19          string name = "test.Person"; // the class name path string to deposit 
20 is          class class = clazz .forName (name); // path through get bytecode file object creation
21         Object obj = clazz.newInstance();//创建实例
22         
23     }
24     
25     public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, SecurityException, InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
26 
27         method2();
28         
29     }
30 
31 }