工产设计模式

package test;

//水果接口标准
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) {
		if ("apple".equals(className)) {
			return new Apple();
		}
		if ("orange".equals(className)) {
			return new Orange();
		}
		return null;
	}
}

public class Test {
	public static void main(String[] args) {
		Fruit f = Factory.getInstance("apple");//在客户端输入需要的对象名称就可以得到对象
		f.eat();
	}
}