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Lesson 9 - Working with XML files using the DOM approach in Java

Java Files and I/O Working with XML files using the DOM approach in Java

In the previous lesson, Reading XML via the SAX approach in Java, we learned to read XML files using the SAX approach. We wrote a file, element by element, and read them the same way as well. In today's tutorial, we're going to look at another way to work with XML files, which is called DOM.

DOM

DOM (Document Object Model) is an object-oriented API for working with XML files. It's an alternative approach that has certain advantages and certain disadvantages. Meaning that DOM doesn't replace SAX, and we usually decide which of the techniques to use for working with XML files based on our applications' requirements.

DOM sees an XML file as an object, moreover, a tree structure. Elements are no longer seen one after other but nested into each other logically. We work with individual nodes and ask for their sub-elements. This greatly simplifies our work and we also gain the ability to easily edit XML files by adding


 

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In this tutorial, we'll work with XML files using the DOM approach in Java. We'll read objects from XML and then create an XML file using DOM as well.

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Article has been written for you by David Capka
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The author is a programmer, who likes web technologies and being the lead/chief article writer at ICT.social. He shares his knowledge with the community and is always looking to improve. He believes that anyone can do what they set their mind to.
Unicorn university The author learned IT at the Unicorn University - a prestigious college providing education on IT and economics.
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