When academic literature casually drops "JavaScript (or Java)" like they're interchangeable terms, you know someone's getting peer-reviewed by angry developers in the comments section. That's like saying "cars are used for transportation, such as sedans or horses." The highlighted text is doing the programming equivalent of calling a dolphin a fish—technically they both swim, but one will make marine biologists want to throw their textbooks into the ocean. Java and JavaScript have about as much in common as ham and hamster. One is a statically-typed, object-oriented language that runs on the JVM and powers enterprise applications. The other is a dynamically-typed scripting language that was created in 10 days and somehow ended up running the entire internet. The only thing they share is a marketing decision from 1995 that has been haunting developers ever since. The dog's expression perfectly captures every developer's reaction when reading this academic masterpiece. Someone needs to tell this author that naming similarity doesn't equal functionality similarity, or we'd all be writing code in C, C++, C#, and Objective-Sea.