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");
}
}