title: How to create a class dynamically in java
body: <p>I don't know if this is even possible. Anyway, here is my problem:
  I want to create a Class having a database table schema, for example suppose that I have a table like </p>
  
  <pre><code>id - unsigned int 
  username - varchar(128)
  password - varchar(128)
  </code></pre>
  
  <p>and let's assume I can query this data from my db. What I want to do is to dynamically create (and, of course, instantiate) a Java class that should look like this:</p>
  
  <pre><code>public class User{
      private unsigned int id;
      private String username;
      private String password;
  }
  </code></pre>
  
  <p>(actually an <code>ActiveRecord</code> for my table)</p>
  
  <p>Can you help me starting this? 
  Tnks</p>