• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Jeanne Boyarsky
  • Liutauras Vilda
  • Campbell Ritchie
  • Tim Cooke
  • Bear Bibeault
Sheriffs:
  • Paul Clapham
  • Junilu Lacar
  • Knute Snortum
Saloon Keepers:
  • Ron McLeod
  • Ganesh Patekar
  • Tim Moores
  • Pete Letkeman
  • Stephan van Hulst
Bartenders:
  • Carey Brown
  • Tim Holloway
  • Joe Ess

Problem with Hello World  RSS feed

 
Greenhorn
Posts: 17
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Just getting started. I got the following:

C:\Jplan>javac hello.java

C:\Jplan>java hello.java
Exception in thread "main" java.lang.NoClassDefFoundError: hello/java
Caused by: java.lang.ClassNotFoundException: hello.java
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
Could not find the main class: hello.java. Program will exit.


So I can compile, but not execute.

The startup at the Cattle Drive indicates that I need to set my CLASSPATH to

.;C\Jplan

I believe I have.

Although I don't know how to check that.

Thanks in advance for the help.


Program is


public class hello
{
public static void main( String[] args )
{
System.out.println("hello world!");
}
}


located in c:\Jplan\hello.java


 
Ranch Hand
Posts: 710
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Rather than running it with:

C:\Jplan>java hello.java

Use:

C:\Jplan>java hello

 
Terry Wynn
Greenhorn
Posts: 17
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Whoopsie.

Thank you very much. Works fine.


Sorry to be THIS stupid. I am sure none of you did anything like this in the beginning.
 
W. Joe Smith
Ranch Hand
Posts: 710
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Terry Wynn wrote:Whoopsie.

Thank you very much. Works fine.


Sorry to be THIS stupid. I am sure none of you did anything like this in the beginning.



To be honest, I've been studying Java for about a year now and I STILL do that sometimes. I will stare at the command line for about 5 seconds wondering what happened, then proceed to laugh at myself.
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!