【简答题】【消耗次数：1】
类中定义的[填空]，是允许施加于该类对象上的操作，是该类所有对象所共享的。
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相关题目
【简答题】
[填空]就是要求某个对象执行在定义它的那个类中所定义的某个操作的规格说明，是对象间的交互手段。
【简答题】
[填空]就是对象所能执行的操作，也就是类中所定义的服务。
【简答题】
把所有对象都划分成各种对象类(简称为类,class)，每个对象类都定义了一组数据和一组方法。数据用于表示对象的[填空]，是对象的状态信息。
【单选题】
已知类CVirtualClass，下面四个选项中均定义了该类的成员函数，请问，哪一个定义是正确的（）
①
virtualCVirtualClass（）；
②
staticvirtualvoidsetValue（int）；
③
constCVirtualClassprint（）const=0；
④
virtualintgetValue（）const=0；
【单选题】
在类中若要处理 ActionEvent 事件，则该类需要实现的接口是（ ）。
①
Runnable
②
ActionListener
③
Serializable
④
Event
随机题目
【单选题】
Anything that is ____ must be attended to immediately.
①
critical
②
essential
③
urgent
④
immense
【单选题】
He_____ comb his hair at the table, even though he knows I
don’ t like it．
①
shall
②
may
③
will
④
can
【单选题】
A good manager is both competent and ____.
①
available
②
sufficient
③
efficient
④
effective
【单选题】
You are ____ to decide for yourself.
①
old enough
②
as old enough
③
enough old
enough old as
【单选题】
Breaking Mary’s doll was purely ____. John didn’t mean to
do it.
①
incidental
②
accidental
③
occasion
④
opportunity
【单选题】
Televisions enable us to see things happen almost at
the exact moment ____.
①
which they are happening
②
they are happening
③
which they happen
④
they have happened
【单选题】
It is the ability to do the job_____ matters, not where you
come from or what you are.
①
one
②
that
③
what
④
if
【单选题】
Mac’s close ____ to his brother made people mistake them for one another.
①
resemblance
②
identity
③
appearance
④
relationship