Extract XML blocks as string in Java

I have an XML as below

<accountProducts>
 <accountProduct>...</accountProduct>
 <accountProduct>...</accountProduct>
 <accountProduct>...</accountProduct>
 <accountProduct>...</accountProduct>
</accountProducts>

Now I want to extract each of the accountProduct block as string. So is there any XML parsing technique to do that or I need to do string manipulation.

Any help please.