反射机制应用很广泛。这里简单备注下

package com.shone.ailin;import java.lang.reflect.Constructor;import java.lang.reflect.Field;import java.lang.reflect.InvocationTargetException;import java.lang.reflect.Method;public class Reflectdemo {        public static void main(String[] args) throws Exception {                        printVar();                createInstance();        printAllVarName();            }        //打印所有成员变量名    private static void printAllVarName() {        // TODO Auto-generated method stub        Point p = new Point(1,3);        Field[] fields = p.getClass().getDeclaredFields();        for(int i=0;i

Point类

package com.shone.ailin;public class Point {    private int x ;    public int y ;        public Point(int x ,int y ) {        // TODO Auto-generated constructor stub        super();        this.x = x;        this.y = y;    }        private int addCount(int x,int y) {        return x+y;    }}