title: Java Thread Sleep and Interrupted Exception
body: <ol>
  <li>Why does a sleep thread need a try catch to catch Interrupted Exception?</li>
  <li>Why does a sleep even emit an Interrupted Exception error?
  This are the two questions I really wanna find out about in java programming
  I've been searching through google and i've still haven't found a clear explanation is to why this two things happen. </li>
  </ol>