Java反射Class.forName()配置文件演示

来源：互联网发布：网络竞速游戏编辑：程序博客网时间：2024/05/16 01:08

package com.sanmao10;import java.io.BufferedReader;import java.io.FileReader;public class test {    public static void main(String[] args) throws  Exception{        BufferedReader buff=new BufferedReader(new FileReader("config.properties"));        Class c=Class.forName(buff.readLine());        Furits furits=(Furits)c.newInstance();//因为字节码文件是Apple所以 Furits furits=new Apple();        Juicer juicer=new Juicer(furits);        juicer.run();    }}package com.sanmao10;public interface Furits {    public void Squeeze();}package com.sanmao10;public class Juicer {    private Furits f;    public Juicer(){}    public Juicer(Furits f) {        this.f = f;    }    public void run(){        f.Squeeze();    }}package com.sanmao10;public class Apple implements Furits{    @Override    public void Squeeze() {        System.out.println("苹果榨汁");    }}package com.sanmao10;public class Orange implements Furits{    @Override    public void Squeeze() {        System.out.println("橘子榨汁");    }}

com.sanmao10.Apple 配置文件内容

0 0