Why command run "Java classname" do not work after successful compiling?
Hi Gurus,
I am working a Java pacakage (ncsa.hdf.jhv) in Windows 2000. After I have successfully compiled the package, then I try to run teh code by using command "Java JHV". It turns out saying that:
Exception in thread "main" java.lang.NoClassDefFoundError: JHV (Wrong name: ncsa/hdf/jhv/JHV)
Please help with this by reply or emial me direct to [email protected]
Thansk,
Chris
When a class is part of a package, its full qualified class name is package.classname. When you enter "java JHV" java is finding a file named JHV.class but inside that file it finds the fully qualified name to be ncsa.hdf.jhv.JHV so you get the wrong name error. If your code is like:
package ncsa.hdf.jhv;
public class JHV {Then the command to execute JHV is:
java ncsa.hdf.jhv.JHV
You must have a directory path ncsa/hdf/jhv/ and the file JHV.class must be in the jhv directory. Finally, the ncsa directory must be in a directory in the system Classpath.
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