总价钱、总载人、总载货怎么得到？

源自：12-1 综合练习

Che [ ] whatChe={new Keche(1,"奥迪A4",500,4),

new Keche(2,"马自达6",400,4),

new Pika(3,"皮卡雪6",450,4,2),

new Keche(4," 金龙 ",800,20),

new Huoche(5,"松花江",400,4),

new Huoche(6,"依维柯",1000,20)};

假如我知道了new Keche(1,"奥迪A4",500,4)中的1，怎么调出500或者4？

提问者：慕数据3565510 2017-05-19 04:08