Topic: 如何设置环境变量（急！！！） |
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| 1.如何设置环境变量（急！！！） | Copy to clipboard |
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Posted by: chair Posted on: 2005-09-14 16:11 我写了一个程序,编译通过,无法运行.提示出错: Exception in thread "main" java.lang.NoClassDefFounfError: f:\java\hello 我写的程序在Ｆ盘下．j2sdk1.4.2_09装在Ｃ盘．在网上看了很多类似的帖，应该是环境变量没有设置正确．我是这样设置的（系统是windows xp2 ) 变量名：path 变量值：c:\j2sdk1.4.2_09\bin 变量名：java_home 变量值：c:\j2sdk1.4.2_09 变量名：clsaapath 变量值：c:\j2sdk1.4.2_09\lib\tools.jar;c:\j2sdk1.4.2_09\jre\lib\rt.jar 急！！！请各位大虾救命 | |
| 2.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: nonamexz Posted on: 2005-09-14 16:20 classpath 变量值:
path 变量值:
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| 3.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: chair Posted on: 2005-09-14 16:44 classpath 设置成.;f:\java还是不行，高手救，这是写的第一个程序 | |
| 4.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: nonamexz Posted on: 2005-09-14 16:50 你把当前目录设为"F:\java\" 再执行 java hello 试试. | |
| 5.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: chair Posted on: 2005-09-14 17:11 还是不行,鼓励鼓励我,怎么弄一个这么难的环境变量,其他的编程语言好象不要 | |
| 6.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: chair Posted on: 2005-09-14 17:14 why 你在哪，帮帮我 | |
| 7.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: zcjl Posted on: 2005-09-14 19:15 set classpath=. | |
| 8.Re:如何设置环境变量 [Re: chair] | Copy to clipboard |
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Posted by: why Posted on: 2005-09-14 19:49 Is your class hello and the java file hello.java -- if it is Hello, then it has to be Hello.java. Please run the following commands and copy-n-paste the contents in the Command Prompt window into your post: > echo %JAVA_HOME% > echo %PATH% > echo %CLASSPATH% > F: > cd \java > dir > javac hello.java > java -cp . hello (to cut-n-paste, select the area to capture with the mouse and press ENTER) BTW, please don't write something like（急！！！）in the subject line, I found it annoying, if not disgusting. | |
| 9.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: nonamexz Posted on: 2005-09-14 21:58 chair: 建议你下载（Java深度歷險 Chapter1 ） http://www.javaworld.com.tw/jute/upload/moli/j2me_book/inside_java_ch01.pdf 把这篇文章仔细看一下，估计以后这方面的问题就再也难不到你了。 我也是java新手，有空多交流交流。 | |
| 10.Re:如何设置环境变量（急！！！） [Re: nonamexz] | Copy to clipboard |
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Posted by: normanzeng Posted on: 2005-09-14 22:27 nonamexz wrote: 这篇文章真的好啊!!! 本周刚开始学java, 对我的帮助太大了!!!! 现在开始搞eclipse, 如果搞不定再来这里找人帮忙. | |
| 11.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: jjl0604 Posted on: 2005-09-14 22:31 classpath .;c:\j2sdk1.4.2_09\lib\tools.jar;c:\j2sdk1.4.2_09\jre\lib\rt.jar | |
| 12.Re:如何设置环境变量（急！！！） [Re: jjl0604] | Copy to clipboard |
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Posted by: why Posted on: 2005-09-14 22:41 jjl0604 wrote: 多謝參與，但請勿混淆視聽 
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| 13.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: chair Posted on: 2005-09-15 06:41 我已经解决了,看了清华大学的JAVA2实用教程中说是这样，在命令提示符下输入：path c:\j2sdk1.4.2_09\bin 后进入f:\java\hello java hello终于出现hello java world! 谢谢大家帮助！！！ | |
| 14.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: why Posted on: 2005-09-15 06:55 chair wrote: 进入f:\java\hello ? Show us your code -- you should do this at the very beginning! | |
| 15.Re:如何设置环境变量（急！！！） [Re: jjl0604] | Copy to clipboard |
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Posted by: liumengyong Posted on: 2005-09-15 09:11 在我的电脑，右键-属性-环境变量 .;c:\j2sdk1.4.2_09\lib\tools.jar;c:\j2sdk1.4.2_09\jre\lib\rt.jar | |
| 16.Re:如何设置环境变量（急！！！） [Re: liumengyong] | Copy to clipboard |
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Posted by: why Posted on: 2005-09-15 10:32 liumengyong wrote: Sigh... Could you please tell us why we need to include tools.jar and rt.jar in the classpath? | |
| 17.救命啊~当头棒喝~~~~！ [Re: chair] | Copy to clipboard |
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Posted by: solar009 Posted on: 2005-09-16 18:12 我的java 才装上 用java -version 显示的是虚拟机已经安装好了 可是编译的时候却是说找不到要编译的文本~我晕死了 ！用dir有能看见txt文件~大虾们帮帮忙啊~谢谢~ | |
| 18.Re:如何设置环境变量（急！！！） [Re: chair] | Copy to clipboard |
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Posted by: yuzili2003 Posted on: 2005-09-16 20:03 将你编的*.txt文件保存成*.java文件 文件名要和类名一致 | |
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