工厂设计模式

package d;
/**
 * 工厂设计模式
 */
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.*;
interface Friut
{
	void eat();
	
}
class Apple implements Friut
{
	public void eat()
	{
		System.out.println("** 吃苹果");
		
	}
}
class Orange implements Friut
{
	public void eat()
	{
		System.out.println("** 吃桔子");
		
	}
}
class Factory
{
	public static Friut getFriut(String friutName)
	{
		Friut friut=null;
		try
		{
			friut=(Friut) Class.forName(friutName).newInstance();
		}
		catch (Exception e)
		{
			
		}
		return friut;
	}
}
class Init
{
	public static Properties getPro()
	{
		Properties pro =null;
		try
		{
			 pro=new Properties();
			 File fr=new File("fruit.ini");
			if(fr.exists())
			{
				pro.load(new FileInputStream(fr));
			}
			else 
			{
				pro.setProperty("apple", "d.Apple");
				pro.setProperty("orange", "d.Orange");
				pro.store(new FileOutputStream(fr),"FRIUT CLASS");
			}
		}
		catch (Exception e)
		{
			
		}
		return pro;
	}
}
public class FactoryTest
{
	public static void main(String[] args)
	{
		Friut friut=null;
		Properties pro=Init.getPro();
		friut=Factory.getFriut(pro.getProperty("orange"));
		if(friut!=null)
		{
		  friut.eat();
		}
	}
}