//使用new关键字创建对象的缺点是耦合度太高，工厂设计模式利用Java的反射机制来实例化对象降低了这种耦合度
package cn.buaa;
import java.util.Date;
interface Fruit{
public void eat();
}
class Apple implements Fruit{
@Override
public void eat() {
System.out.println("吃苹果");
}
}
class Orange implements Fruit{
@Override
public void eat() {
System.out.println("吃橘子");
}
}
class Factory{
public static Fruit getInstance(String className){
Fruit f = null;
try{
Class<?> cla = Class.forName(className);
f = (Fruit)cla.newInstance();
}catch(Exception e){
e.printStackTrace();
}
return f;
}
}
public class Hello {
public static void main(String[] args) throws Exception {
Fruit f = Factory.getInstance("cn.buaa.Orange");
f.eat();
}
}