This blog post nicely describes how to generate Java classes with JAXB to read XML files, given a schema:
Using JAXB to Generate Java Objects from XML Document
In case you don’t have a schema you can also infer one. This online tool can do it for you:
http://www.freeformatter.com/xsd-generator.html
Daniel Eichhorn is a software engineer and an enthusiastic maker. He loves working on projects related to the Internet of Things, electronics, and embedded software. He owns two 3D printers: a Creality Ender 3 V2 and an Elegoo Mars 3. In 2018, he co-founded ThingPulse along with Marcel Stör. Together, they develop IoT hardware and distribute it to various locations around the world.
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Daniel Eichhorn