title: Environment Variables and Java Hello World
body: <p>I used this to at the command line to set create an environment variable for the java compiler:</p>
  
  <pre><code>  set path=C:\Program Files (x86)\Java\jdk1.8.0_05\bin
  </code></pre>
  
  <p>Type in <code>javac</code> at the command line, it works. I exit from the command line, come back, no longer recognizes <code>javac</code> as a command. How can I make it permanent?</p>
  
  <p>While it was working, I linked the compiler and a hello world program:</p>
  
  <pre><code>public class HelloWorld { 
     public static void main(String[] args) { 
        System.out.println("Hello, World");
     }
  }
  </code></pre>
  
  <p>It creates a class file, what do I do with it?</p>
  
  <p>Note: I am not going to use an IDE until I understand what is going on.</p>