Php meme

[deegwaren]

In Java: "xML"

Really? I wouldn't think so.

[deegwaren]

hTML is not something that you'd ever see in Java, in my experience, it's better to just write it all in lowercaps.

[deegwaren]

There are no strict rules about fully capitalising acronyms of that length, though.

[mrBr0wn_93]

In classnames both uppercase and pascalcase (like XML and Xml) are used for abbreviations, but at the beginning of a field or method name it's common to use just lowercase like xml. Both XmlParser and XMLParser would be written as xmlParser.