title: can't java unchecked exceptions be handled using try/catch block?
body: <p>In a tutorial I found <strong>that Unchecked Exception can't be handled by your code</strong> i.e. we can't use <code>try/catch</code> block and the examples are exceptions like <code>ArrayIndexOutOfBoundsException, NullPointerException.</code> But these exceptions can be handled using try/catch block. I think i am not clear about the concept !! </p>
  
  <p>Also i think throw keyword can be used only with <code>try/catch</code> block.can throw Keyword be used with <code>UncheckedException</code>?</p>