格林模拟试题一参考答案

来源:java认证发布时间:2012-11-12 12:47:44java认证视频

answer 7)

2) variable2
3) _whatavariable
4) _3_
5) $anothervar
 

an identifier can begin with a letter (most common) or a dollar sign($) or an underscore(_). an identifier cannot start with anything else such as a number, a hash, # or a dash -. an identifier cannot have a dash in its body, but it may have an underscore _. choice 4) _3_ looks strange but it is an acceptable, if unwise form for an identifier.


answer 8)

4) 0

class level variables are always initialised to default values. in the case of an int this will be 0. method level variables are not given default values and if you attempt to use one before it has been initialised it will cause the

error variable i may not have been initialized

type of error.

视频学习

我考网版权与免责声明

① 凡本网注明稿件来源为"原创"的所有文字、图片和音视频稿件,版权均属本网所有。任何媒体、网站或个人转载、链接转贴或以其他方式复制发表时必须注明"稿件来源:我考网",违者本网将依法追究责任;

② 本网部分稿件来源于网络,任何单位或个人认为我考网发布的内容可能涉嫌侵犯其合法权益,应该及时向我考网书面反馈,并提供身份证明、权属证明及详细侵权情况证明,我考网在收到上述法律文件后,将会尽快移除被控侵权内容。

最近更新

社区交流

考试问答