问题:
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.
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;
}
● 参考解析
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