用JCreator编译经常碰到这样得输出，怎么回事？

[kkkddd44]

javac: invalid flag: D:\myjava3\ForYou.java
Usage: javac <options> <source files>
where possible options include:
-g Generate all debugging info
-g:none Generate no debugging info
-g:{lines,vars,source} Generate only some debugging info
-O Optimize; may hinder debugging or enlarge class file
-nowarn Generate no warnings
-verbose Output messages about what the compiler is doing
-deprecation Output source locations where deprecated APIs are used
-classpath <path> Specify where to find user class files
-sourcepath <path> Specify where to find input source files
-bootclasspath <path> Override location of bootstrap class files
-extdirs <dirs> Override location of installed extensions
-d <directory> Specify where to place generated class files
-encoding <encoding> Specify character encoding used by source files
-source <release> Provide source compatibility with specified release
-target <release> Generate class files for specific VM version
-help Print a synopsis of standard options
那位大哥大姐能说说看。

[kkkddd44]

难道没好心人能指点一二吗？

[jqrrvfdn]

我也用JCreator编译程序，刚开始入门的时候，也出现这种情况，
搞了好久才搞好这个问题，其实这是你的变量环境没有设置正确。
你不妨拿本权威一点的书，照着上面的说明重新设置一下环境变
量。

[ZheX]

jcreater环境变量没有设置正确

[lookydd]

Path (bin目录)
JAVA_HOME (jdk目录)
ClassPath （lib目录）
？？？