Hypertext Markup Language (HTML) is the language that is used to code most web pages. It uses tags and elements to define how text, images, and interactive forms can be displayed.
C is a general-purpose language that most programmers learn before moving on to more complex languages.
A successor to the ABC language, Python is a high-level general-purpose programming language.
Java is a class-based, object-oriented general-purpose programming language. It is designed to function across environments—write once, run anywhere (WORA).