用反射实例化一个内部类

package com;      
     
import java.lang.reflect.Constructor;      
import java.lang.reflect.InvocationTargetException;      
import java.lang.reflect.Method;      
     
public class Test {      
     
    /**    
     * @param args    
     */      
    public static void main(String[] args) {      
        // TODO Auto-generated method stub      
        Test test = new Test();      
        for (Class c : test.getClass().getClasses()) {      
            try {      
                System.out.println(c.getName());      
                c.newInstance();      
            } catch (Exception e) {      
                try {   
                    Constructor con = c.getConstructor(new Class[] {Test.class});   
                    con.newInstance(new Object[] {test});   
                } catch (Exception e1) {   
                    e1.printStackTrace();   
                }      
            }      
        }      
     
    }      
     
    public class UserCase {      
        public void println() {      
            System.out.println("println");      
        }      
     
        public void say() {      
            System.out.println("say");      
        }      
    }      
     
}