IntelliJ IDEA shortcuts
search action: Ctrl + Shift + A
Navigation: open class by name: Ctrl + N open file by name: Ctrl + Shift + N goto anything: Ctrl + Alt + Shift + N recent files: Ctrl + E switch file: Ctrl + Tab
Edit: undo: Ctrl + Z redo: Ctrl + Shift + Z delete line: Ctrl + Y move lines selected: Ctrl + Shift + up/down
Code: file structure: Ctrl + F12 find usage: Alt + F7 refactor | rename: Shift + F6 show javadoc: Ctrl + Q show hierachy: Ctrl + H call hierarchy: Ctrl + Alt + H reformat: Ctrl + Alt + L optimize imports: Ctrl + Alt + O
Run: run (last run:) Shift + F10