Java中使用装饰设计模式实现动态增强对象功能

public interface Car {
    /**
     * 组装
     */
    void assemble();
}

public class BasicCar implements Car{
    /**
     * 组装
     */
    @Override
    public void assemble() {
        System.out.println("普通车...");
    }
}

public abstract class CarDecorator implements Car {
    protected Car car;
    public CarDecorator(Car car) {
        this.car = car;
    }
    /**
     * 组装
     */
    @Override
    public void assemble() {
        car.assemble();
    }
}

public class SuvCar extends CarDecorator{
    public SuvCar(Car car) {
        super(car);
    }
    /**
     * 组装
     */
    @Override
    public void assemble() {
        super.assemble();
        System.out.println("添加SUV特性...");
    }
}
public class LuxuryCar extends CarDecorator {
    public LuxuryCar(Car car) {
        super(car);
    }
    /**
     * 组装
     */
    @Override
    public void assemble() {
        super.assemble();
        System.out.println("添加豪车特性...");
    }
}

public class Demo {
    public static void main(String[] args) {
        // 普通车
        Car basicCar = new BasicCar();
        basicCar.assemble();
        // SUV
        Car suvCar = new SuvCar(basicCar);
        suvCar.assemble();
        // 豪车
        Car luxuryCar = new LuxuryCar(basicCar);
        luxuryCar.assemble();
    }
}