title: What is the use of rt.jar file in java?
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/3091040/why-do-we-use-rt-jar-in-a-java-project">Why do we use rt.jar in a java project?</a>  </p>
  </blockquote>
  
  
  
  <p>I am very confused to knowing about rt.jar file.   </p>
  
  <blockquote>
    <p>What is the role
    of rt.jar file or use of rt.jar file
    in java??</p>
  </blockquote>
  
  <p>Thanks.</p>