Null pointer exception to check whether a xml have the element or not

Asked Sep 21 '15 at 15:18

Active Sep 22 '15 at 05:14

Viewed 24 times

My part of code is below see,

NodeList nodes=doc.getElementsByTagName("user");
if(nodes.getLength()==0)
system.exit(1);

Initially, xml dont have user element. But, I got an null pointer exception.

How to solve this... And how do I find the no of nodes even if the nodes doesn't exists initially. It shud return 0 nodes. Thank you

Also I checked this....
NodeList nodes=doc.getElementsByTagName("user"); if(nodes==null) system.exit(1);

Then aldo I got null pointer exception.

edited Sep 22 '15 at 05:14

asked Sep 21 '15 at 15:18

Manjunath M Manja

`nodes` value is `null`, when you call the `getLength()` method on it, you get the `NullPointerException` – thegauravmahawar Sep 21 '15 at 15:20
I checked the node value is null or not but alsa I got an null pointer exception. – Manjunath M Manja Sep 22 '15 at 05:09

0 Answers0