Deep insight into your code. IntelliJ IDEA analyzes your code, looking for connections between symbols across all project files and languages. Using this information it provides indepth coding assistance, quick navigation, clever error analysis, and, of course, refactorings.
After IntelliJ IDEA's indexed your source code, it offers blazing fast and intelligent experience by giving relevant suggestions in every context: instant and clever code completion, on-the-fly code analysis and reliable refactoring tools.
Mission-critical tools such as integrated version controls systems and a wide variety of supported languages and frameworks are at hand — no plugin hustle included.
Smart code completion
While the basic completion suggests names of classes, methods, fields, and keywords within the visibility scope, the smart completion suggests only those types that are expected in the current context.
The IDE predicts your needs and automates the tedious and repetitive development tasks so you can stay focused on the big picture.
In every design and implementation decision that we make, we keep in mind the risk of interrupting the developer's flow and do out best to eliminate or minimize it. The IDE follows your context and brings up the corresponding tools automatically.
The coding assistance in IntelliJ IDEA is not about only the editor: it helps you stay productive when dealing with its other parts as well: e.g. filling a field, searching over a list of elements; accessing a tool window; or toggling for a setting, etc.