title: char initial value in Java
body: <p>You initialize an <code>int</code> variable defined within a method to have a value of <code>0</code> until you compute specific values for the <code>int</code>. What can one initialize <code>char</code> values to?<br>
  <code>char retChar = '';</code>this gives an error and if I initialise to <code>-1</code> it says too many characters. </p>