Topic: 文件编译不成功,是什么原因? |
Print this page |
1.文件编译不成功,是什么原因? | Copy to clipboard |
Posted by: lpclpc123 Posted on: 2005-10-17 20:18 出错信息:can not read PrimeNumber.java import java.io.*; class PrimeNumber { public static void main(String[] args) { int num=0; boolean flag=true; try{ do{ System.out.println("请输入一个正整数:"); BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); num=Integer.parseInt(br.readLine()); }while(num<0); }catch(IOException e){} for(int i=2;i<=(int)Math.sqrt(num);i++){ if(num%i==0){ flag=false; break; } } if(flag&&num!=1) System.out.println("您输入的数:"+num+"是一个素数"); else System.out.println("您输入的数:"+num+"不是一个素数"); } } |
2.Re:文件编译不成功,是什么原因? [Re: lpclpc123] | Copy to clipboard |
Posted by: bluecrystal Posted on: 2005-10-17 21:17 不明白,我这里编译成功了的 请看执行结果:
|
3.Re:文件编译不成功,是什么原因? [Re: lpclpc123] | Copy to clipboard |
Posted by: lpclpc123 Posted on: 2005-10-18 09:23 路径设置应该没问题把,我运行其他文件都没问题啊,不知道那里出错了 |
4.Re:文件编译不成功,是什么原因? [Re: lpclpc123] | Copy to clipboard |
Posted by: why Posted on: 2005-10-18 10:03 Read [加贴须知] http://www.cjsdn.net/post/view?bid=1&id=119201 and show us > echo %JAVA_HOME% > echo %PATH% > echo %CLASSPATH% > rem X is the drive letter where the java source is > X: > rem YourFolder is the folder where the java source PrimeNumber.java is > cd YourFolder > dir > javac PrimeNumber.java > java PrimeNumber |
5.问题找到了,谢谢! [Re: lpclpc123] | Copy to clipboard |
Posted by: lpclpc123 Posted on: 2005-10-18 15:23 C:\Documents and Settings\hypking>echo %JAVA_HOME% C:\j2sdk1.4.1_07 C:\Documents and Settings\hypking>echo %PATH% C:\j2sdk1.4.1_07\bin;C:\Program Files\IDM Computer Solutions\UltraEdit-32 C:\Documents and Settings\hypking>echo %CLASSPATH% C:\j2sdk1.4.1_07\lib\tools.jar;C:\j2sdk1.4.1_07\jre\lib\rt.jar; E:\java>dir 2003-10-05 15:41 641 PrimeNumber .java.bak 原来问题在这里,(.java.bak),这是什么格式啊?改成.java就可以运行了. 谢谢了! |
6.Re:文件编译不成功,是什么原因? [Re: lpclpc123] | Copy to clipboard |
Posted by: c00lzhang Posted on: 2005-10-27 14:55 用EditPlus 2写程序或修改的时候 它会自动的有的先前代码的备份。(.java.bak) |
7.Re:文件编译不成功,是什么原因? [Re: lpclpc123] | Copy to clipboard |
Posted by: witer666 Posted on: 2005-11-05 12:22 你保存的不是以JAVA为扩展名的文件,就会出现can not read! |
Powered by Jute Powerful Forum® Version Jute 1.5.6 Ent Copyright © 2002-2021 Cjsdn Team. All Righits Reserved. 闽ICP备05005120号-1 客服电话 18559299278 客服信箱 714923@qq.com 客服QQ 714923 |