protected Passenger[] passengers; 
    public Car(Driver driver){  //构造函数 
           (2)  .driver = driver; 
         engine = new Engine("TX6536 型号引擎"); 
         wheels = new Wheel[MAX_WHEELS]; 
         passengers = new Passenger[MAX_PASSENGERS]; 
         for (int index = 0; index < MAX_WHEELS; index++){ 
              wheels[index] = new Wheel(); 
         } 
         for (int index = 0; index < MAX_PASSENGERS; index++){ 
              passengers[index] = null; 
         } 
    } 

    int getPassengerNumber(){ //获取车上乘客数量 
         //此处代码省略 
    } 
    void getOnPassenger(Passenger  aPassenger ){ //乘客上车 
         //此处代码省略 
    } 
    void run(){  //开车 
         if(  (3)  ){      System.out.println("司机尚未上车 !"); return;} 
         //此处代码省略 
    } 
    public static void main(String args[]){ 
         Driver driver = new Driver("第五路公交车司机");  
         Car car = new Car(  (4)  ); 
         for (int index = 0 ; index < MAX_PASSENGERS; index ++) 
              car.getOnPassenger(  (5)   Passenger()); 
         car.run(); 
    } 
} 

2008年上半年  程序员 下午试卷 第 12 页 (共 12 页)