# Kotlin | | | |---|---| |Level:|Intermediate to advanced| |Skills Needed:|Prior experience with programming languages, particularly Java| |Platform:|Web, Mobile, Desktop, Server| |Popularity Among Programmers:|Increasingly popular; used for Android applications| |Benefits:|- Less code-heavy than Java and other languages;<br>- Relatively easy to adopt<br>- Fully compatible with Java| |Downsides:|Fluctuating compilation speed; no static keyword in Kotlin| |Degree of Use:|Widely used; highly applicable| |Annual Salary Projection:|$136,000| [^1] [^1]:https://www.simplilearn.com/best-programming-languages-start-learning-today-article