XML and JSON are important to me, and I’m grateful to Apress for letting me write an entire book about them. In this article I will briefly introduce the second edition of my new book, Java XML ...

JSON is the leading data interchange format for web applications and more ... Additional value types for JSON properties are string, number, object, array, true, false, and null.

For example, if a hacker inserts non-JSON code into a string ... Java, Python and other languages. Unlike XML, JSON is simply a way to represent data structures, as opposed to a full markup language.

(The same considerations apply to strings that are snippets of "programs" in some other "language", such as SQL, HTML, JSON ... ordinary string concatenation (+); in Java 5, String::format ...