How to convert int to Integer
<pre><code>private static HashMap&lt;Integer, Bitmap&gt; mBitmapCache;         
mBitmapCache.put(R.drawable.bg1,object);                       
</code></pre>

<p><code>R.drawable.bg1</code> is an <code>int</code> ... but i want to convert into <code>Integer</code> because <code>Hashmap</code> takes an <code>Integer</code>... and when draw the multiple objects in seconds , it creates a Integer Object runtime 
which affects the performence of the code...</p>
