title: what happens when assigning a null character?
body: <p>what happens in memory when I, say, do the following:<br>
  in C: <code>char *c=NULL;</code><br>
  in java:  <code>MyClass mc=null;</code><br>
  what happens in memory, how is this <code>null</code> represented in memory in both of these languages? Thanks</p>