How to remove chars in a string, and use that for another string
<p>I am rather new at java, and I know this cant be too difficult, but I cant quite figure it out. </p>

<pre><code>String xxChange = request.getParameter("XXChange");     
String yyChange = request.getParameter("YYChange");    
String zzChange = request.getParameter("ZZChange");  
String aaaChange = request.getParameter("AAChange");  
</code></pre>

<p>So basically I am getting these parameters and just setting them to strings.  Each one of these strings has multiple numbers then two letters after it, and my question is how do I remove the letters and set it to a new string.  Fyi....the number in front of the letters is on a sequence, and could grow from being 1 digit to multiple, so i dont think i can do string.Substring. </p>
