SimpleDateFormat convert
<pre><code>SimpleDateFormat format = new SimpleDateFormat("GD_yyyyMMdd_HHmmss");
    System.out.println(format.format(new Date()));
</code></pre>

<p>I want a result like <code>'GD_20120604_164534'</code>but the result is <code>AD156_20120604_165315</code></p>

<p>how to set the param can return my willing result.thanks advance!</p>
