IntelliJ IDEA analyzes your code, looking for connections between symbols across all project files and languages. This information provides in-depth coding assistance, quick navigation, intelligent error analysis, and refactorings.

After IntelliJ IDEA indexed your source code, it offers a 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.

The coding assistance in IntelliJ IDEA is not only about the editor: it helps you stay productive when dealing with its other parts, e.g., filling a field, searching over a list of elements, accessing a tool window, or toggling for a setting, etc.
Features of JetBrains IntelliJ IDEA Ultimate

Deep insight into your code
Smart completion
Chain completion
Static members completion
Data flow analysis
Language injection
Cross-language refactorings
Detecting duplicates
Inspections and quick-fixes
Editor-centric environment
Shortcuts for everything
Ergonomic user interface
Inline debugger
Built-in developer tools

Technical Details

Supported OS: Windows 11 / Windows 10 / Windows 8.1 / Windows 7
Processor: Multicore Intel Series or above, Xeon or AMD equivalent
RAM: 4GB (8GB or more recommended)
Free Hard Disk Space: 4GB or more recommended