车辆段 vehicle depot
车辆段 vehicle depot
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阅读以下说明和Java代码，填充程序中的空缺，将解答填入答题纸的对应栏内。【说明】某应急交通控制系统(TraficControIS，stem)在红灯时控制各类车辆(Vehicle)的通行，其类图如图6-1所示，在紧急状态下应急车辆在红灯时可通行，其余车辆按正常规则通行。下面的Java代码实现以上设计，请完善其中的空缺。【Java代码】abstract class Vehiclepublic Vehicle () { }abstract void run};interface Emergency {(1) ;(2) ；}class Car extends Vehicle {public Car () { }void run () { /*代码略*/ }};class Truck extends Vehicle {public Truck () { }void run () { /*代码略*/ }class PoliceCar (3)boolean isEmergency = false;public PoliceCar () { }public PoliceCar(boolean b) { this . isEmergency =b; }public boolean isEmergent () { return (4); }public void runRedLight () { /*代码略*/ }}/*类Ambulance. FireEngine实现代码略*/public class TraficControISystem {／。交通控制类。／private Vehicle[ ]V=new Vehiele [24];int numVehicles;public void control() {for (int i=0; inumVehicles; i++) {if (v[i] instanceof Enu rgency ((Emergency)V [i])isEmergent()) {( 5 ) . runRedLigh: ( ) ;}else(6).run( )}}void add (Vehicle vehicle) { v[numVehicles++]=vehicle;）／*添加车辆*／void shutDown()（／*代码略*/}public static void main (Stri.ng [ ] args) {TraficControlSystem tcs = new TraficControlSystem() ;tcs . add (new Car (） ;tcs .add (new PoliceCar () ;tcs .add (new Ambulance () ;tcs . add (new Ambulance (true》 ;tcs . add (new FireEngine ( true》 ;tcs . add (new Truck () ;tcs . add (new FireEngine ( ) ;tcs . control () ;tcs . shutDown () ;}}
阅读以下说明和Java代码，填充程序中的空缺，将解答填入答题纸的对应栏内。[说明]某应急交通控制系统(TraficControlSystem)在红灯时控制各类车辆(Vehicle)的通行，其类图如下图所示，在紧急状态下应急车辆在红灯时可通行，其余车辆按正常规则通行。下面的Java代码实现以上设计，请完善其中的空缺。[Java代码]abstract class Vehicle{public Vehicle(){ }abstract void run();};interface Emergency{ ______; ______;};class Car extends Vehicle{public Car(){ }void run(){ /*代码略*/ }};Class Truck extends Vehicle{public Truck(){ }void run() { /*代码略*/ }};class PoliceCar ______ {boolean isEmergency= false;public PoliceCar(){ }public PoliceCar(boolean b) {this.isEmergency=b; }public boolean isEmergent(){ return ______ }public void runRedLight(){ /*代码略*/ }};/*类Ambulance、FireEngine实现代码略*/public class TraficControlsystem { /*交通控制类*/private Vehicle[]V=new Vehicle[24];int numVehicles;public void control(){for {int i=0; i＜numVehicles; i++){if(V[i]instanceof Emergency}else______. run();}}void add(Vehicle vehicle){ v[numVehicles++]=vehicle;}/*添加车辆*/void shutDown(){/*代码略*/}public static void main(String[]args){TraficC0ntrolSystem tcs=new TraficControlSystem();tcs.add(new Car());tcs.add(new PoliceCar());tcs.add(new Ambulance());tcs.add(new Ambulance(true));tcs.add(new FireEngine(true));tcs.add(new Truck());tcs.add(new FireEngine());tcs.control();tcs.shutDown();}}
阅读以下说明和C++代码，填充代码中的空缺，将解答填入答题纸的对应栏内。[说明]某应急交通控制系统(TraficControlSystem)在红灯时控制各类车辆(Vehicle)的通行，其类图如下图所示，在紧急状态下应急车辆红灯时也可通行，其余车辆按正常规则通行。下面的C++代码实现以上设计，请完善其中的空缺。[C++代码]#include＜typeinfo＞#include＜iostream＞using namespace std;class Vehicle {/*抽象基类,车辆*/public:virtual void run()=0;};class Emergency { /*抽象基类,可在红灯时通行的接口,函数均为纯虚函数*/public:______=0; //isEmergent()函数接口______=0; //runRedLight()函数接口};clasS Car:public Vehicle{public:～Car(){}void run(){/*代码略*/ ));class Truck:public Vehicle{public:～Truck(){}void run(){ /*代码略*/ });class PoliceCar:______ {private:bool isEmergency;public:PoliceCar():Car(),Emergency() { this-＞isEmergency=false;}PoliceCar(bool b):Car(),Emergency() {this-＞isEmergency=b;}～P0liceCar(){ }bool isEmergent(){ return ______}void runRedLight() { /*代码略*/ });/*类Ambulance、FireEngine实现代码略*/class TraficControlsystem { /*交通控制类*/private:Vehicle*v[24]; int numVehicles;/*在构造函数中设置初始值为0*/public:void control(){ //控制在紧急情况下应急车辆红灯通行,其他情况按常规通行for(int i=0;i＜numVehicles; i++){Emergency *ev=dynamic_cast＜Emergency*＞(v[i]);if(ev !=0) ______-＞runRedLight();else ______-＞run();}}void add(Vehicle*vehicle) { v[numVehicles++] =vehicle; }/*添加车辆*/void shutDown() {for(int i=0; i＜numVehicles; i++) { delete v[i];} }};int main(){TraficControlSystem*tcs=new TraficControlSystem;tcs-＞add(new Car()); tcs-＞add(new PoliceCar());tcs-＞add(new Ambulance()); tcs-＞add(new Ambulance(true));tcs-＞add(new FireEngine(true));tcs-＞add(new FireEngine());tcs-＞add(new Truck());tcs-＞contr01();tcs-＞ShutDown();delete tcs;}
（）is the volume for loading goods of the vehicle.A、Vehicle tonnageB、Vehicle sizeC、Vehicle capacityD、Available Vehicle capacity
单选题（）is the volume for loading goods of the vehicle.AVehicle tonnageBVehicle sizeCVehicle capacityDAvailable vehicle capacity