JAVA学习之工厂方法模式

package com.fylx;

//定义一个接口，人
interface People
{
    public void Speaking();
}

// 定义一个中国人群体
class China implements People
{
    public void Speaking()
    {

        System.out.println("我是中国人");
    }
}

// 定义一个日本人群体
class Japan implements People
{
    public void Speaking()
    {

        System.out.println("にほんごん");
    }
}

// 工厂类
class Factory
{
    public static People getInstance(String className)
    {
        People people = null;
        try
        {
            people = (People) Class.forName(className).newInstance();
        } catch (Exception e)
        {
            e.printStackTrace();
        }
        return people;
    }
}

public class FactoryMethod
{
    public static void main(String[] args)
    {

        People f = Factory.getInstance("com.fylx.Japan");
        if (f != null)
        {
            f.Speaking();
        }
    }
}