Lab Magic Parking Tower

A parking tower is out of order someday. If you park a Benz, you will end up with a Torben. Write a program to simulate this scenario. First create a class called CarParked which has a method called outOfOrder. Name an object called yourCar, which happens to be a Benz. Your program should contain a class called CarParked and a test program called CarParkedDemo.

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(附) toString 用為將最後的輸出型態轉為 String。
故，brand 已為 String 型態，所以再用 toString 做轉換輸出，不好。

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(改進版)
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