title: How to uninstall newer version of java and install older version?
body: <pre><code>java -version
  java version "1.6.0_26"
  Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
  Java HotSpot(TM) Server VM (build 20.1-b02, mixed mode)
  </code></pre>
  
  <p>Now I have a Java application which says </p>
  
  <blockquote>
    <p>A different version of Java Runtime Environment (JRE) is required to use this application.
    and it is 1.6.0_17...</p>
  </blockquote>
  
  <p>What to do?</p>