-------------------------------------------------------【程序设计】---------------------------------------------------------1【考查点】KTA_O18 框架的设计与定义KTA_O19 重用主程序框架2【业务背景】假设你是一位赛车游戏开发人员。在游戏中有汽车类Car它有一个动力系统Powe

class Car {
    private String brand;
    private Power power;
    
    public void setBrand(String brand) {
        this.brand = brand;
    }
    
    public void setPower(Power power) {
        this.power = power;
    }
    
    public Power getPower() {
        return power;
    }
    
    public void start() {
        System.out.println("汽车启动了");
    }
    
    public void run() {
        System.out.println("汽车行驶中");
    }
    
    public void stop() {
        System.out.println("汽车停止了");
    }
}

interface Power {
    double outputPower();
    void recharge();
}

abstract class Oil {
    public double outputPower() {
        return 0.0;
    }
    
    public void addOil() {
        
    }
    
    public void recharge() {
        
    }
}

abstract class Electricity {
    public double outputPower() {
        return 0.0;
    }
    
    public void recharge() {
        
    }
}

class Oil95 extends Oil {
    public double outputPower() {
        return 95.0;
    }
    
    public void addOil() {
        System.out.println("加95号汽油");
    }
}

class Oil98 extends Oil {
    public double outputPower() {
        return 98.0;
    }
    
    public void addOil() {
        System.out.println("加98号汽油");
    }
}

class Hydrogen extends Electricity {
    public double outputPower() {
        return 120.0;
    }
    
    public void recharge() {
        System.out.println("加氢");
    }
}

class Lithium extends Electricity {
    public double outputPower() {
        return 150.0;
    }
    
    public void recharge() {
        System.out.println("充电");
    }
}

public class Prog1{
    public static void main(String[] args) {
        Car car = new Car();
        car.setBrand("奔驰");
        Power oil = new Oil95();
        car.setPower(oil);
        car.start();
        car.run();
        System.out.println("输出动力：" + car.getPower().outputPower());
        car.getPower().recharge();
        car.stop();

        car.setPower(new Hydrogen());
        car.start();
        car.run();
        System.out.println("输出动力：" + car.getPower().outputPower());
        car.getPower().recharge();
        car.stop();
    }
}
``