How to get tag value by attribute of xml file in Java?

Question

Java

Hello. There is such a file https://dropmefiles.com/NLZkw (application.xml). From it you need to get a String

<Data key="TrialSerialNumber">911987057659283838047464</Data>

And from it already get the number 911987057659283838047464. How to do this in Java?