Java
Java is a high-level programming language developed by Sun
Microsystems. It was originally designed for developing programs for
set-top boxes and handheld devices, but later became a popular choice
for creating web applications.
Python
Python is an interpreted high-level general-purpose programming
language. ... It supports multiple programming paradigms, including
structured (particularly, procedural), object-oriented and functional
programming. Python is often described as a "batteries included"
language due to its comprehensive standard library.
mySQL
MySQL is an Oracle-backed open source relational database management
system (RDBMS) based on Structured Query Language (SQL). MySQL runs on
virtually all platforms, including Linux, UNIX and Windows. Although
it can be used in a wide range of applications, MySQL is most often
associated with web applications and online publishing.
HTML
The HyperText Markup Language, or HTML is the standard markup language
for documents designed to be displayed in a web browser. It can be
assisted by technologies such as Cascading Style Sheets (CSS) and
scripting languages such as JavaScript.
CSS
Stands for "Cascading Style Sheet." Cascading style sheets are used to
format the layout of Web pages. They can be used to define text
styles, table sizes, and other aspects of Web pages that previously
could only be defined in a page's HTML.
JavaScript
JavaScript is a dynamic computer programming language. It is
lightweight and most commonly used as a part of web pages, whose
implementations allow client-side script to interact with the user and
make dynamic pages. It is an interpreted programming language with
object-oriented capabilities.