Which statements concerning the relationships between the following classes are true？（） class Foo { int num； Baz comp = new Baz（）； } class Bar { boolean flag； } class Baz extends Foo { Bar thing = new Bar（）； double limit； }
- A、A Bar is a Baz.
- B、A Foo has a Bar.
- C、A Baz is a Foo.
- D、A Foo is a Baz.
- E、A Baz has a Bar.
正确答案:C,E
答案解析:有
微信扫一扫手机做题