title: Regular Expression In Android for Password Field
body: <p>How can i validating the <code>EditText</code> with <code>Regex</code> by allowing particular characters .
  My condition is :</p>
  <p>Password Rule:</p>
  <ol>
  <li><p><strong>One capital letter</strong></p>
  </li>
  <li><p><strong>One number</strong></p>
  </li>
  <li><p><strong>One symbol</strong> <code>(@,$,%,&amp;,#,)</code> whatever normal symbols that are acceptable.</p>
  <p>May I know what is the correct way to achieve my objective?</p>
  </li>
  </ol>