title: Object type boxing with a reference type variable
body: <p>Boxing is when a value type is assigned to an object type. Is it the same when a reference type is assigned to an object? </p>
  
  <p>When a type (which  isn't object) is assigned, what happens? Is that boxing too? </p>
  
  <pre><code>    int num=5;
      object obj = num;  //boxing
      //////////////////////
      MyClass my = new MyClass();
      object obj = my; //what is name this convert  (whethere is boxing?)
  </code></pre>