设计模式-创建型-工厂模式
// 抽象产品类
interface Vehicle {
void drive();
}
// 具体产品类：汽车
class Car implements Vehicle {
@Override
public void drive() {
System.out.println("Driving a car.");
}
}
// 具体产品类：自行车
class Bicycle implements Vehicle {
@Override
public void drive() {
System.out.println("Riding a bicycle.");
}
}
// 工厂类
class VehicleFactory {
// 根据类型创建对应的交通工具对象
public static Vehicle createVehicle(String type) {
if (type.equals("car")) {
return new Car();
} else if (type.equals("bicycle")) {
return new Bicycle();
} else {
throw new IllegalArgumentException("Unknown vehicle type: " + type);
}
}
}
// 客户端代码
public class FactoryPatternDemo {
public static void main(String[] args) {
Vehicle car = VehicleFactory.createVehicle("car");
car.drive();
Vehicle bicycle = VehicleFactory.createVehicle("bicycle");
bicycle.drive();
}
}