个回答

• 肥宅风见啸

  2018-09-29 18:30:08

  package BorrowMain;import BorrowClass.Bus;import BorrowClass.Car;import BorrowClass.Train;import BorrowClass.kaCar;public class borrow {Train[] motos=new Train[11];public void init(){	motos[0]=new Car("京NY28588","宝马",800,"X6");	motos[1]=new Bus("京6566754","金杯",800,16);	motos[2]=new Car("京CNY3284","宝马",600,"550i");	motos[3]=new Bus("京8696997","金龙",800,16);	motos[4]=new Car("京NT37465","别克",300,"林荫大道");	motos[5]=new Bus("京6566754","金杯",1500,34);	motos[6]=new Car("京NT96968","别克",600,"GL8");	motos[7]=new Bus("京8696998","金龙",1500,34);	motos[8]=new kaCar("赣A06E37","killerqueen",0,15);	motos[9]=new kaCar("赣A77777","公路杀手",0,20);	motos[10]=new kaCar("赣GA4396","水泥明星",0,20);}}

  
  

  0

• 肥宅风见啸

  2018-09-29 18:25:28

  ?对象数组定义完了之后还要实例化的，数组保存的是类名引用，并没有分配对象空间，你先试试遍历赋一遍初始值

  0