Eclipse Java - 无效的包名 - 包名中的保留字
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Eclipse Java - invalid package name - Reserved words in package name
提问by Krishnabhadra
I am in the middle of an android project and was trying to create a new package in it.
我正处于一个 android 项目的中间，并试图在其中创建一个新包。
com.mycompany.myprojectname.new
Well, Eclipse is not letting me to create it and is showing this error:
好吧，Eclipse 不允许我创建它并显示此错误：
Invalid package name. 'new' is not a valid Java identifier
包名无效。'new' 不是有效的 Java 标识符
I never knew package name has reserved words, which we cannot use. My questions are;
我从来不知道包名有保留字，我们不能使用。我的问题是；
- Is this an Eclipse thing? or a Java thing? I tried a pure Java project (not Android), just to check, but there also I got the same error.
- What are other reserved words that is not allowed?
- Is there any documentation about this?
- 这是 Eclipse 的事情吗？还是Java的东西？我尝试了一个纯 Java 项目（不是 Android），只是为了检查，但我也遇到了同样的错误。
- 还有哪些不允许使用的保留字？
- 有没有关于这个的文件？
回答by Joachim Sauer
Yes, this is a general Java thing.
是的，这是一个通用的 Java 东西。
The list of reserved words can be found here. They are:
该保留字列表可以在这里找到。他们是：
abstract continue for new switch assert default goto package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return transient catch extends int short try char final interface static void class finally long strictfp volatile const float native super while
abstract continue for new switch assert default goto package synchronized boolean do if private this break double implements protected throw byte else import public throws case enum instanceof return transient catch extends int short try char final interface static void class finally long strictfp volatile const float native super while
Documentation on the fact that reserved words can not be used in package names if found in the package naming tutorial, among other places.
如果在包命名教程中找到保留字，则包名称中不能使用保留字这一事实的文档，以及其他地方。
The authoritative source is (as always) the Java Language Specification, specifically:
权威来源（一如既往）是 Java Language Specification，特别是：
- § 3.9 Keywordsand
An identifier cannot have the same spelling (Unicode character sequence) as a keyword (§3.9), boolean literal (§3.10.3), or the null literal (§3.10.7), or a compile-time error occurs.
回答by Marcin Orlowski
See docs here:
请参阅此处的文档：
http://docs.oracle.com/javase/tutorial/java/package/namingpkgs.html
http://docs.oracle.com/javase/tutorial/java/package/namingpkgs.html
In some cases, the internet domain name may not be a valid package name. This can occur if the domain name contains a hyphen or other special character, if the package name begins with a digit or other character that is illegal to use as the beginning of a Java name, or if the package name contains a reserved Java keyword, such as "int".
在某些情况下，互联网域名可能不是有效的包名称。如果域名包含连字符或其他特殊字符，如果包名称以数字或其他字符作为 Java 名称的开头是非法的，或者 包名称包含保留的 Java 关键字，则可能会发生这种情况，例如“int”。
回答by MysticMagic?
newis a java keyword. Use some other word instead of it.
new是一个java关键字。用其他词代替它。
