题目内容

翻译：1.I left my hometown in London last year and now I have enjoyed working in a small city in China. Learning a foreign language opens up the culture and history of a country, so I started to learn Chinese in order to know more about China.

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翻译：1.Many people wants to make friends with me. But I was a bit upset when I found out the real reason why they need a foreign friend. They said they wanted to practice their English. I don’t like this. I like friends to share my feelings and ideas with me.

下面哪个不是java的关键字?

A. class
B. float
C. System
D. this

下面关于标识符说法错误的是?

A. 就是给类,接口,方法,变量等起名字时使用的字符序列
B. DataClass是一个java标识符
C. $bS5_c7不是一个java标识符
D. HelloWorld是一个java标识符

下面关于标识符常见命名规则说法正确的是?

A. 包在硬盘上是一个抽象的概念,看不见摸不着
B. 类和接口的标识符的每个单词首字母需要大写
C. 方法和变量的标识符的每个单词首字母需要大写
D. 常量的标识符的每个单词首字母需要大写