反射+抽象工厂

package Test;

public class Solution {
    public static void main(String[] args)throws InstantiationException, IllegalAccessException, ClassNotFoundException
    {
        Factory factory=new Factory();
        IMan man=factory.createMan();
        IWoman woman=factory.createWoman();
        man.speak();
        woman.speak();
    }

}
interface IMan
{
    public void speak();
}
interface IWoman
{
    public void speak();
}
class WhilteMan implements IMan
{
    public void speak()
    {
        System.out.println("我是白皮肤男人");
    }
}
class WhilteWoman implements IWoman
{
    public void speak()
    {
        System.out.println("我是白皮肤女人");
    }
}
class YellowMan implements IMan
{
    public void speak()
    {
        System.out.println("我是黄皮肤男人");
    }
}
class YellowWoman implements IWoman
{
    public void speak()
    {
        System.out.println("我是黄皮肤女人");
    }
}
class Factory
{   private static String classPath="Test.Yellow";
    public  static IMan createMan() throws InstantiationException, IllegalAccessException, ClassNotFoundException
    {
        String name=classPath+"Man";
        return (IMan)Class.forName(name).newInstance();
    }
    public  static IWoman createWoman() throws InstantiationException, IllegalAccessException, ClassNotFoundException
    {
        String name=classPath+"Woman";
        return (IWoman)Class.forName(name).newInstance();
    }
}