title: Multiple interfaces in single file
body: <p>I was just wondering if you can limit the number of interface files on a project. Couple of projects i work with have dozen of interfaces with nothing special in them, and i was thinking can you write all interfaces in single file ? and in specific class point to interface needed ?? i.e: </p>
  
  <pre><code>//interface file
  interface InterfaceOne {
  
  }
  interface InterfaceTwo{
  
  }
  //foo file
  public class foo implements InterfaceTwo{
     public void foo {
           //....
     }
  }
  //foo1 file
  public class foo1 implements InterfaceOne{
     public void foo {
          //....
      }
  }
  </code></pre>
  
  <p>or something similar ?</p>