Ceylon programming language for Java and JavaScript virtual machines.
Ceylon is a modern, modular, statically typed programming language for Java and JavaScript virtual machines. The language features a flexible and very readable syntax, a unique and uncommonly elegant static type system, a powerful module architecture, and excellent tooling, including awesome Eclipse- and IntelliJ-based IDEs.
The Ceylon language is defined by a readable specification.
Since 'Hello World' is the traditional way to introduce a language, here's how it looks in Ceylon:
shared void hello()
=> print("Hello, World!");
To learn more, you can start with the quick introduction or take the in-depth tour of Ceylon.
Current release: 1.3.3 (Contents May Differ)
- Ceylon is open source on Github
- Ceylon 1.4 is under development including migration of the compiler to the Eclipse Foundation.
Ceylon is:
- Powerful: Ceylon's powerful flow-sensitive static type system catches many bugs while letting you express more, more easily: union and intersection types, tuples, function types, mixin inheritance, enumerated types, and reified generics.
- Readable: We spend more time reading other people's code than writing our own. Therefore, Ceylon prioritizes readability, via a highly regular syntax, support for treelike structures, and elegant syntax sugar where appropriate.
- Predictable: Ceylon controls complexity with clarity. The language eschews magical implicit features with ambiguous corner cases. The compiler follows simple, intuitive rules and produces meaningful errors.
Ceylon offers:
- A platform: Ceylon is a whole platform with amodern SDK designed from scratch. It runs on both Java and JavaScript virtual machines, bridging the gap between client and server. Ceylon is fully interoperable with Java and the Java SDK, and with JavaScript and its libraries.
- With modularity: Modularity is at the very core of the language, SDK, and tooling. The compiler produces module archives which are then distributed via a next-generation repository architecture with Ceylon Herd as its social focus point.
- And tooling: Static typing is the technology that enables killer tools. Ceylon comes with a complete command line toolset, and awesome Eclipse- and IntelliJ-based IDEs with searching, refactoring, quick fixes + assists, autocompletion, debugging, and much more.
