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import java.io.*;import java.util.*;interface Fruit{public void eat();}class Apple implements Fruit{public void eat(){System.out.println("吃苹果");}}class Orange implements Fruit{public void eat(){System.out.println("吃橘子");}}class Factory{public static Fruit getInstance(String name)throws Exception{Fruit f = null;if("apple".equals(name)){f = new Apple();}else if("orange".equals(name)){f = new Orange();}if(f!=null){return f;}else return null;}}public class FactoryDemo01{public static void main(String args[])throws Exception{Fruit f = Factory.getInstance("apple");f.eat();}}
