Boost Your Java Productivity: 15 Must‑Have IntelliJ IDEA Plugins & Settings

1. Essential Plugins

Codota : AI‑powered code suggestion that completes whole statements after typing a few letters and displays usage frequency based on your project.

Key Promoter X : Pops up shortcut hints in the lower‑right corner to help you learn IDE shortcuts quickly.

CodeGlance : Shows a miniature overview of the entire file, making navigation in large files easier.

Lombok : Generates boilerplate code (getters, setters, constructors, toString, hashCode, etc.) at compile time, removing the need to write them manually.

Alibaba Java Coding Guidelines : Checks code against Alibaba's Java style guide, highlights violations with colors, and shows inline suggestions.

CamelCase : Quickly convert between camelCase and snake_case using Shift+Alt+U.

MybatisX : Enhances MyBatis development with navigation, code generation and inspection features.

SonarLint : Real‑time static analysis that warns against using System.out, suggests using a logger, and enforces other quality rules.

Save Actions : Automatically optimizes imports, adds final to unchanged variables, inserts this where appropriate, and formats code on save.

CheckStyle : Provides another set of style checks similar to Alibaba's guidelines.

Grep Console : Customizes console output with colors and filters for easier log reading.

MetricsReloaded : Analyzes code complexity metrics such as cyclomatic complexity and provides visual feedback.

Statistic : Generates statistics about lines of code, classes, methods, etc.

Translation : Inline translation of selected text within the IDE.

Rainbow Brackets : Colors matching brackets with the same hue, helping to spot mismatched pairs instantly.

2. Create a Live Template for Faster Coding

Define a custom live template (e.g., type apr) that expands to an @Autowired statement, allowing you to generate frequently used code snippets with a single shortcut.

3. Global IDE Settings to Boost Efficiency

Optimize Import Settings : Adjust the import layout to match your preferred order and grouping.

Show Tabs on Multiple Lines : Disable single‑line tab display so multiple open files are visible simultaneously.

Place Block Comments Before Code : Move block comment markers to appear directly above the related code block.

Copy Whole Line on Selection : Enable copying the entire line even when only part of it is selected.

Case‑Insensitive Completion : Turn off case‑sensitivity so typing lower‑case s still suggests String.

Version‑Control Directory Colors : Adjust colors for VCS‑managed folders for clearer visual distinction.

Auto‑Insert Author & Timestamp : Configure new files to include a header with author name and creation date automatically.

Show Line Numbers & Method Separators : Enable line numbers and visual separators between methods for easier navigation.

These plugins and settings together can dramatically reduce repetitive tasks, improve code quality, and make IntelliJ IDEA a far more powerful environment for Java development.