java继承多态练习题

以下是关于Java继承和多态的练习题答案:

1. 题目：下面关于子类继承父类，正确的是（ ）。
答案：A. public class Student extends People{}

2. 题目：关于继承的说法，正确的是（ ）。
答案：B. 除了Object之外的每个类，有且仅有一个父类

请注意，以上是根据提供的引用资料给出的答案。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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