简单工厂Factory

package net.util;

/**

 * @项目名：spring2.5

 * @包名：net.util

 * @文件名：FactoryDemo.java

 * @日期：Jun 21, 2011 4:37:02 PM

 * @备注：工厂模式

 * @作者：apple

 */

public class FactoryDemo {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Car c=Factory.getCarInstance("Banz");

if(c!=null){

c.run();

c.stop();

}

else{

System.out.println("制造不了");

}

}

}

class Factory{

public static Car getCarInstance(String type){

Car c=null;

try {

c=(Car)Class.forName("net.util."+type).newInstance();

} catch (InstantiationException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IllegalAccessException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

return c;

}

}

interface  Car{

public void run();

public void stop();

}

class Banz implements Car{

public void run() {

// TODO Auto-generated method stub

System.out.println("Banz跑");

}

public void stop() {

// TODO Auto-generated method stub

System.out.println("Banz停");

}

}

class Ford implements Car{

public void run() {

// TODO Auto-generated method stub

System.out.println("Ford跑");

}

public void stop() {

// TODO Auto-generated method stub

System.out.println("Ford停");

}

}