工厂模式--简单工厂模式

//实例对象父类
public class Vehicle {
}

//vehicle工厂类
public class VehichleFactory {

    // 用map对象保存产品ID及其对应的分类
    private static Map<String, Class> registeredProducts = new HashMap<String, Class>();

    // 注册vehicle
    public void registerVehicle(String type,Class vehicleClass) {
        registeredProducts.put(type, vehicleClass);
    }
    
    //获取vehicle实列对象
    public Vehicle createVehicle(String type) throws InstantiationException, IllegalAccessException {
        Class vehicleClass = registeredProducts.get(type);
        return (Vehicle) vehicleClass.newInstance();
    }
}

//在基类中添加一个抽象方法
public abstract class Vehicle {
    abstract public Vehicle newInstance();
}

public class VehichleFactory {

    // 用map对象保存产品ID及其对应的分类
    private static Map<String, Vehicle> registeredProducts = new HashMap<String, Vehicle>();

    // 注册vehicle
    public void registerVehicle(String type,Vehicle vehicle) {
        registeredProducts.put(type, vehicle);
    }
    
    //获取vehicle实列对象
    public VehichleFactory.Vehicle createVehicle(String type) {
        return registeredProducts.get(type).newInstance();
        
    }
}