Test5：Java中的对象交互测试题

问题 1

Look the inheritance relation:

In a source of java have the following line:

woman w = new man();

What statement are corrected?

A. The expresion is legal

B. Compile corrected but running wrong

C.Will construct a woman’s object

D. the expression is illegal

答案：

D

问题 2

请阅读以下代码，请选择输出正确的结果：

class Person{private String