can't run from the command line to save life

[Marcus Deviln]

I keep getting this- java.lang.NoClassDefFoundError: Init

caused by: java.lang.ClassNotFoundException: Init
at: java.net.URLClassLoader$1.run<Unknown Source>
at: java.security.AccessController.doPriveleged<Native Method>
at: java.net.URLClassLoader.findClass<Unkown Source>
at: java.lang.ClassLoader.loadClass<Unkown Source>
at: Sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: Init. Program will exit.

I have a classpath problem perhaps? If so then I don't know how to fix it. I tried to put the dot in the claspath that tells the compiler to search the current directory but it's more of the same.

[Ulf Dittmer]

What command are you entering, exactly? Also describe the directory layout (where the various involved files are).

[salvin francis]

Face it, dont run from it

The error mentioned is java.lang.NoClassDefFoundError
it is as simple as it says: No Class Defination was found,
it is not finding a class named "Init"

Where is it ?
Do you have a class named "Init"
Are you using some jar containing a classname "Init"

I believe this is a this is a classpath related issue too

[Mahender Parkipandla]

May be it's just because the file name and the class name that file contains.
Check whether the file name and the class name given in that file name are same.
This may be another case of getting error.(If i'm not wrong)

[Marcus Deviln]

when I type: dir myProject at the command line it shows the myProject directory and sure enough within it is the Init file

Directory of C:\Users\marcus\myProject

11/30/2009 12:56 AM <DIR> .
11/30/2009 12:56 AM <DIR> ..
03/25/2009 11:07 PM 670 Dates3.java
01/29/2009 10:59 AM 0 dir
03/25/2009 11:08 PM 435 Init.java
01/29/2009 11:12 AM 0 javac
04/27/2009 04:18 PM 76,658,072 jdk-6u13-window
04/28/2009 09:53 AM 347 RegexSmall.java
03/25/2009 11:14 PM 634 ScanNext.java
04/28/2009 09:41 AM 796 Values.java
8 File(s) 76,660,954 bytes
2 Dir(s) 288,348,602,368 bytes free

[Christophe Verré]

You are getting a ClassNotFoundException. The file being looked for is not Init.java, but Init.class.
You didn't answer Ulf's question : What command are you entering, exactly ?

[Marcus Deviln]

I'm entering: java Init -to answer your question

[Rob Spoor]

Did you compile your Java file?

[David Thomas]

Removed, to start in a new post, apologies.

[Campbell Ritchie]

David Thomas, please don't post what may be an unrelated question in somebody else's thread. This is regarded as hi-jacking, since it may prevent the original poster from having his question answered.

Please everybody only answer the original question, otherwise I shall pull rank and start deleting posts.

[David Thomas]

do you have a package in your Class for example

package a

class example

then try java -cp c:\xxxxx a.class

or even java a.class, in your case package.init

had a similar problem in which I had a\class ! and changed it to a.class and it worked.

[Campbell Ritchie]

Good point, checking about package names.

[Marcus Deviln]

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\marcus>java myProject1.Init
Exception in thread "main" java.lang.NoClassDefFoundError: myProject1/Init
Caused by: java.lang.ClassNotFoundException: myProject1.Init
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
Could not find the main class: myProject1.Init. Program will exit.

C:\Users\marcus>javac myProject1.Init /** Here I tried to compile but javac is not known. Am I not using the correct compilation command? **/
'javac' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\marcus>cd myProject1 // Here I guess I'm trying to change the current directory
The system cannot find the path specified.

C:\Users\marcus>-cp myProject1.Init /*I'm sure my use of classpath is not right. I'm trying to call the class by it's fully qualified name...Perhaps I need an absolute path??*/
'-cp' is not recognized as an internal or external command,
operable program or batch file.

C:\Users\marcus>

 class Init {
  Init(int x, int y){System.out.println("2-arg constructor");}
  Init(int x) {System.out.println("1-arg constructor");}
  Init() {System.out.println("no-arg constructor");}
  static { System.out.println("1st static init");}
   { System.out.println("1st instance init"); }
   { System.out.println("2nd instance init");}
   static { System.out.println("2nd static init");}
  public static void main(String [] args) {
    new Init();
    new Init(7);
    new Init(4, 5);
  }
}   

The preceding is the source code located in:C:\Users\marcus\myProject