title: ERROR "main class not found "
body: <p>My java is work properly if without adding any classpath to system variable. When I add a classpath to system variable, I got a error show me "main class not found".</p>
  
  <p>Is there any problem with my configuration? I have installed both JDK1.7.0_13 and JRE7. My develop environment is shell, I didn't use any IDE.</p>
  
  <p>P.S. I wrote the following program on test.</p>
  
  <pre><code> public class jdbc11{
      public static void main(String[] args)throws Exception{
      try{
          System.out.println("hello");
  
      }catch(Exception e){
          throw e;
      }
  }
  </code></pre>
  
  <p>and system class path I set is 
  JAVA_HOME\jre\lib      JAVA_HOME\lib       JAVE_HOME\jre\lib\ext</p>