Can I Edit EditText 
<p>I am new to android and I want to change the edit text.Suppose I have a edit text with values :-</p>

<pre><code>aa
bb
cc
</code></pre>

<p>Now I want to change "bb" with "zz" and modified edit text like</p>

<pre><code>aa
zz
cc.
</code></pre>

<p>Thanks in advance.</p>
