Is it a good idea to use static type?
<p>I know the difference between static type and other types but I am not sure which is to used where. Now I am using static types in all places to avoid object instantiation. Is it a good idea to use it that way ? Is there any particular disadvantage in using static type in all places ??</p>

<p>EDIT</p>

<p>What do you call this as <code>static String staff</code> ?</p>
