java能编程不能运行，晕~~~~~~~~~~

debiangk

我用javac可以编译，但是不可以运行
$java first.java
$ java first
Exception in thread "main" java.lang.NoClassDefFoundError: first
我的PATH是
echo $PATH
/usr/j2sdk1.4.2_02/bin:/usr/j2sdk1.4.2_02/jre/bin:/usr/j2sdk1.4.2_02/lib:
/usr/j2sdk1.4.2_02/lib/tools.jar:/usr/j2sdk1.4.2_02/lib/dt.jar:
/usr/j2sdk1.4.2_02/lib/htmlconverter.jar:/usr/kerberos/bin:/usr/j2sdk1.4.2_02/bin:
/usr/j2sdk1.4.2_02/lib:/usr/j2sdk1.4.2_02/lib/tools.jar:/usr/j2sdk1.4.2_02/lib/dt.jar:
/usr/j2sdk1.4.2_02/lib/htmlconverter.jar:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:
/home/nathaniel/bin

jetwins

在classpath项加上"."表示当前目录

jetwins

eg:
CLASSPATH=.:/usr/java/lib/toos.jarCLASSPATH

kj501

Please show your source code first!
I think the reason is the filename "first.java" is not coincide with the class name "First", if the class name is "First", please change the filename from "first.java" to "First.java" and give a try!

无双

1
javac

2
把classpath中toos.jar去掉

空心菜

是代码的问题

debiangk

谢谢你们，我在CLASSPATH下加多当前目录CLASSPATH=.CLASSPATH
这样就解决了

jetwins

为什么要去掉tools.jar？