Why I Switched from Eclipse to IntelliJ IDEA After a Decade

Eclipse's Triple Dominance Era

Initially I wrote Java programs with a tool called JBuilder, then discovered Eclipse, which impressed me with its polished UI and extensible plugin system. By 2006 Eclipse, JBuilder, and NetBeans formed a three‑way rivalry in China.

Eclipse Takes the Lead

MyEclipse later bundled many popular plugins, making Java development easier, though it was not free. Over time JBuilder faded, NetBeans remained niche locally, while Eclipse stayed dominant, especially after the popularity of refactoring.

IntelliJ IDEA Appears

Although I had heard IDEA was excellent, I could not pinpoint a concrete reason to switch until a company training used IDEA exclusively. The training highlighted that the IDE itself did not hinder learning, but my productivity suffered when I kept using Eclipse.

After installing IDEA, the initial interface felt unfamiliar and many Eclipse shortcuts stopped working, but within a few days I became more comfortable and noticed a significant boost in efficiency.

Which Is Better: Eclipse or IDEA?

In my view IDEA is superior mainly because of its human‑friendly details rather than sheer feature count; both IDEs offer comparable functionality.

Getting Started Tips

For veteran Eclipse users, adapting shortcut keys can be challenging. IDEA allows importing Eclipse keymaps, but the conversion is not perfect. Understanding projects versus modules is crucial: IDEA treats a project as a container for multiple modules, aligning well with Maven’s modular structure.

Tomcat configuration is streamlined in IDEA; you can enable multiple Tomcat instances with different ports directly from the UI.

Three Frequently Used Settings

Preferences

Project Structure

Run Configuration

Common Mac Shortcuts

cmd+shift+f – search across project or module

cmd+shift+o – find file

cmd+0 – find class

cmd+f – find in current file

cmd+x – delete line

cmd+c – copy line

alt+enter – quick‑fix suggestion

ctrl+alt+h – show method callers

cmd+7 – show all methods of a class

cmd+alt+l – reformat code

ctrl+alt+o – optimize imports

shift+f6 – rename refactoring

Features I Like

Integrated terminal replaces the macOS terminal

Built‑in database tool reduces reliance on external clients

Integrated Maven support is more convenient than Eclipse’s right‑click approach

JetBrains also offers WebStorm for JavaScript and PyCharm for Python, which I now prefer over Eclipse‑based alternatives.

Despite occasional performance hiccups, occasional crashes, and some shortcut differences, IDEA’s overall ergonomics and integrated tools have convinced me to move away from Eclipse.