Intellij IDEA and eclipse mapping manual made by shuai.pan
migrating from eclipse to Intellij IDEA
Overview
Switching from Eclipse to IntelliJ IDEA, especially if you've been using Eclipse for a long time, requires understanding some fundamental differences between the two IDEs, including their user interfaces, compilation methods, shortcuts, project configuration and other aspects.
No workspace
The first thing you'll notice when launching IntelliJ IDEA is that it has no workspace concept. This means that you can work with only one project at a time. While in Eclipse you normally have a set of projects that may depend on each other, in IntelliJ IDEA you have a single project that consists of a set of modules.
If you have several unrelated projects, you can open them in separate windows.
If you still want to have several unrelated projects opened in one window, as a workaround you can configure them all in IntelliJ IDEA as modules.
Intellij idea vs eclipse terminology
| Eclipse | IntelliJ IDEA |
|---|---|
| Workspace | Project |
| Project | Module |
| Facet | Facet |
| Library | Library |
| JRE | SDK |
| Classpath variable | Path variable |
Templates
| Template | Eclipse | IntelliJ IDEA |
|---|---|---|
| Define a main method | main | psvm |
| Iterate over an array | for | itar |
| Iterate over a collection | for | itco |
| Iterate over a list | for | itli |
| Iterate over an iterable using foreach syntax | foreach | iter |
| Print to System.out | sysout | sout |
| Print to System.err | syserr | serr |
| Define a static field | static_final | psf |
Shortcuts between eclipse and Intellij IDEA
| Eclipse Action | Eclipse Shortcut | IntelliJ IDEA Action | IntelliJ IDEA Shortcut |
|---|---|---|---|
| Code completion | Ctrl+Space | Basic completion | Ctrl+Space |
| - | - | Smart completion | Ctrl+Shift+Space |
| - | - | Statement completion | Ctrl+Shift+Enter |
| Quick access | Ctrl+3 | Search everywhere | Shift x 2 |
| Maximize active view or editor | Ctrl+M | Hide all tool windows | Ctrl+Shift+F12 |
| Open type | Ctrl+Shift+T | Navigate to class | Ctrl+N |
| Open resource | Ctrl+Shift+R | Navigate to file | Ctrl+Shift+N |
| - | - | Navigate to symbol | Ctrl+Shift+Alt+N |
| Next view | Ctrl+F7 | - | - |
| - | - | Recent files | Ctrl+E |
| - | - | Switcher | Ctrl+Tab or Ctrl+Shift+Tab |
| Quick outline | Ctrl+O | File structure | Ctrl+F12 |
| Move lines | Alt+Up/Down | Move lines | Shift+Alt+Up/Shift+Alt+Down |
| Delete lines | Ctrl+D | Delete lines | Ctrl+Y |
| Quick fix | Ctrl+1 | Show intention action | Alt+Enter |
| Quick switch editor | Ctrl+E | Switcher | Ctrl+Tab or Ctrl+Shift+Tab |
| - | - | Recent files | Ctrl+E |
| Quick hierarchy | Ctrl+T | Navigate to type hierarchy | Ctrl+H |
| - | - | Navigate to method hierarchy | Ctrl+Shift+H |
| - | - | Show UML popup | Ctrl+Alt+U |
| Last edit location | Ctrl+Q | Last edit location | Ctrl+Shift+Backspace |
| Next editor | Ctrl+F6 | Select next tab | Alt+Right |
| Run | Ctrl+Shift+F11 | Run | Shift+F10 |
| Debug | Ctrl+F11 | Debug | Shift+F9 |
| Correct indentation | Ctrl+I | Auto-indent lines | Ctrl+Alt+I |
| Format | Ctrl+Shift+F | Reformat code | Ctrl+Alt+L |
| Surround with | Ctrl+Alt+Z | Surround with | Ctrl+Alt+T |
| - | - | Surround with live template | Ctrl+Alt+J |
| Open declaration | F3 | Navigate to declaration | Ctrl+B, Ctrl+Button1 Click or Button2 Click |
| - | - | Quick definition | Ctrl+Shift+I |
| Open type hierarchy | F4 | Navigate to type hierarchy | Ctrl+H |
| - | - | Show UML popup | Ctrl+Alt+U |
| References in workspace | Ctrl+Shift+G | Find usages | Alt+F7 |
| - | - | Show usages | Ctrl+Alt+F7 |
| - | - | Find usages settings | Ctrl+Shift+Alt+F7 |
| Open search dialog | Ctrl+H | Find in path | Ctrl+Shift+F |
| Occurrences in file | Ctrl+Alt+U | Highlight usages in file | Ctrl+Shift+F7 |
| Copy lines | Ctrl+Alt+Down | Duplicate lines | Ctrl+D |
| Extract local variable | Ctrl+Alt+L | Extract variable | Ctrl+Alt+V |
| Assign to field | Ctrl+2/Ctrl+F | Extract field | Ctrl+Alt+F |
| Show refactor quick menu | Ctrl+Alt+T | Refactor this | Ctrl+Shift+Alt+T |
| Rename | Ctrl+Alt+R | Rename | Shift+F6 |
| Go to line | Ctrl+L | Navigate to line | Ctrl+G |
| Structured selection | Shift+Alt+Up/Shift+Alt+Down | Select word at caret | Ctrl+W/Ctrl+Shift+W |
| Find next | Ctrl+J | Find next | F3 or Ctrl+L |
| Show in | Ctrl+Alt+W | Select in | Alt+F1 |
| Back | Ctrl+[ | Back | Ctrl+Alt+Left or Button4 Click |
| Forward | Ctrl+] | Forward | Ctrl+Alt+Right or Button5 Click |
