c:\>java hello Exception in thread "main" java.lang.NoClassDefFoundError: hello (wrong name: He llo) at java.lang.ClassLoader.defineClass0(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:486) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:11 1) at java.net.URLClassLoader.defineClass(URLClassLoader.java:248) at java.net.URLClassLoader.access$100(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:297) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286) at java.lang.ClassLoader.loadClass(ClassLoader.java:253) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)信息
Exception in thread "main" java.lang.NoClassDefFoundError: hello (wrong name: He
llo)
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:11
1)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)信息
c:\>java Hello
不是c:\>java hello
你要注意大小写!!!
classpath=%classpath%;.;c:\jdk1.3.1\jre\lib\rt.jar;c:\jdk1.3.1\lib\tools.jar;c:\JDK1.3.1\LIB\dt.JAR;d:\JDK1.3.1\BIN应该是:java Hello
autoexec.bat的内容
set path=c:\jdk1.3.1\bin;
set classpath=.;
用ultraedit编辑和运行此Hello.java程序没问题.
路径如下:
set classpath=%ClASSPATH%;.;c:\jdk1.3.1;c:\jdk1.3.1\lib;C:\jdk1.3.1\lib\tools.jar;C:\jdk1.3.1\lib\dt.jar
同magus_yang一样系统我这儿就出问题
不知道?
autoexec.bat的内容是
set path=c:\jdk1.3.1\bin;
set classpath=.;
用ultraedit编译和运行Hello.java没问题