title: Error: Could not find or load main class hello.world.HelloWorld
body: <p>I am trying to run this project called "hello user". I am new to Java, so wrote a simple program that takes your name, and displays "Hello ". while Running it, I get the following error:</p>
  
  <pre><code>run:
  Error: Could not find or load main class hello.world.HelloWorld
  Java Result: 1
  BUILD SUCCESSFUL (total time: 0 seconds)
  </code></pre>
  
  <p>But when I run file <code>HelloWorld.java</code>, it does it fine</p>
  
  <p>I am doing this on Netbeans IDE 7.2</p>