Can hibernate scan packages to create SessionFactory automatically?

Question

Can I configure Hibernate to scan packages automatically to create a SessionFactory from @Entity annotated beans ?

Currently I am using

Answer 1

 public static  ArrayList listfiles(String pckgname) {
       ArrayList classes=new ArrayList();
try{

    // Get a File object for the package 
    File directory=null; 
    try { 
      directory=new File(Thread.currentThread().getContextClassLoader().getResource(pckgname.replace('.', '/')).getFile()); 
    } catch(NullPointerException x) { 
      System.out.println("Nullpointer");
      throw new ClassNotFoundException(pckgname+" does not appear to be a valid package"); 
    } 
    if(directory.exists()) { 
      // Get the list of the files contained in the package 
      String[] files=directory.list(); 
      for(int i=0; i