Smart line join

`Ctrl` + `Shift` + `J`

All hotkeys for IntelliJ (MacOS)

General Shortcuts Open Corresponding Tool Window	`Command` + `0..9`
General Shortcuts Save All	`Command` + `S`
General Shortcuts Synchronize	`Command` + `Option` + `Y`
General Shortcuts Toggle Maximize Editor	`Command` + `Shift` + `F12`
General Shortcuts Find Action	`Command` + `Shift` + `A`
General Shortcuts Open Setting Dialog	`Command` + `,`
General Shortcuts Open Project Structure Dialog	`Command` + `;`
General Shortcuts Quick Switch Current Scheme	`Ctrl` + `
General Shortcuts Inspect Current file with Current file	`Option` + `Shift` + `I`
Debugging Shortcuts Run to Cursor	`Option` + `F9`
Debugging Shortcuts Smart Step In/Step Out	`Shift` + `F7` / `Shift` + `F8`
Debugging Shortcuts Step Over	`F8`
Debugging Shortcuts Step Into	`F7`
Debugging Shortcuts Evaluate Expression	`Option` + `F8`
Debugging Shortcuts Switch Breakpoint	`Command` + `F8`
Debugging Shortcuts View Breakpoints	`Command` + `Shift` + `F8`
Debugging Shortcuts Resume Program	`Command` + `Option` + `R`
Editing Shortcuts Basic Code Completion	`Ctrl` + `Spacebar`
Editing Shortcuts Smart Code Completion	`Ctrl` + `Shift` + `Spacebar`
Editing Shortcuts Quick Documentation Setup	`Ctrl` + `J`
Editing Shortcuts Brief Info	`Command` + `Click`
Editing Shortcuts External document	`Shift` + `F1`
Editing Shortcuts Complete Statement	`Command` + `Shift` + `Enter`
Editing Shortcuts Parameter Information	`Command` + `P`
Editing Shortcuts Override Methods	`Ctrl` + `O`
Editing Shortcuts Generate Code	`Command` + `N`
Editing Shortcuts Generate Code	`Ctrl` + `Enter`
Editing Shortcuts Implement Methods	`Ctrl` + `I`
Editing Shortcuts Surround With	`Command` + `Option` + `T`
Editing Shortcuts Comment/Uncomment with Line Comment	`Command` + `/`
Editing Shortcuts Comment/Uncomment with Block Comment	`Command` + `Option` + `/`
Editing Shortcuts Extend Selection	`Option` + `Up Arrow`
Editing Shortcuts Shrink Selection	`Option` + `Down Arrow`
Editing Shortcuts Context Information	`Ctrl` + `Shift` + `Q`
Editing Shortcuts Show Intention Actions and Quick Fixes	`Option` + `Enter`
Editing Shortcuts Reformat Code	`Command` + `Option` + `L`
Editing Shortcuts Duplicate Current Line	`Command` + `D`
Editing Shortcuts Cut/Copy/Paste Current line to Clipboard	`Command` + `X` / `Command` + `C` / `Command` + `V`
Editing Shortcuts Oraganize Import	`Ctrl` + `Option` + `O`
Editing Shortcuts AutoIndent Lines	`Ctrl` + `Option` + `I`
Editing Shortcuts Delete line at caret	`Command` + `Backspace`
Editing Shortcuts Start New line	`Shift` + `Enter`
Editing Shortcuts Smart line join	`Ctrl` + `Shift` + `J`
Editing Shortcuts Smart line split	`Command` + `Enter`
Editing Shortcuts Close Active Editor Tab	`Command` + `W`
Editing Shortcuts Expand All	`Command` + `Shift` + `+`
Editing Shortcuts Collapse All	`Command` + `Shift` + `-`
Editing Shortcuts Expand/Collapse Code block	`Command` + `+` / `Command` + `-`
Editing Shortcuts Delete to end word	`Option` + `Del`
Editing Shortcuts Delete to word start	`Option` + `Backspace`
Editing Shortcuts Select till code block end	`Command` + `Shift` + `]`
Editing Shortcuts Select till code block start	`Command` + `Shift` + `[`
Editing Shortcuts Switch case for Word at Caret or Selected block	`Command` + `Shift` + `U`
Find and Replace Shortcuts Find	`Command` + `F`
Find and Replace Shortcuts Replace	`Command` + `R`
Find and Replace Shortcuts Search Everywhere	`Double Shift`
Find and Replace Shortcuts Find Next	`Command` + `G`
Find and Replace Shortcuts Find Previous	`Command` + `Shift` + `G`
Find and Replace Shortcuts Find in Path	`Command` + `Shift` + `F`
Find and Replace Shortcuts Replace in Path	`Command` + `Shift` + `R`
Find and Replace Shortcuts Select Next Occurance	`Ctrl` + `G`
Find and Replace Shortcuts Select All Occurance	`Command` + `Ctrl` + `G`
Find and Replace Shortcuts Unselect Occurance	`Ctrl` + `G`
Refactoring Copy	`F5`
Refactoring Move	`F6`
Refactoring Rename	`Shift` + `F6`
Refactoring Inline	`Command` + `Option` + `N`
Refactoring Change Signature	`Command` + `F6`
Refactoring Refactor this	`Ctrl` + `T`
Refactoring Safe Delete	`Command` + `Del`
Refactoring Extract Method	`Command` + `Option` + `M`
Refactoring Extract Field	`Command` + `Option` + `F`
Refactoring Extract parameter	`Command` + `Option` + `P`
Refactoring Extract Constant	`Command` + `Option` + `C`
Refactoring Extract Variable	`Command` + `Option` + `V`
Usage Shortcuts Find Usage in File	`Command` + `F7`
Usage Shortcuts Find Usage	`Option` + `F7`
Usage Shortcuts Highlight Usage in File	`Command` + `Shift` + `F7`
Usage Shortcuts Show Usage	`Command` + `Option` + `F7`
VCS/Local History VCS Quick Popup	`Ctrl` + `V`
VCS/Local History Commit Project to VCS	`Command` + `K`
VCS/Local History Update Project from VCS	`Command` + `T`
VCS/Local History Push Commits	`Command` + `Shift` + `K`
Live Templates Insert Live Template	`Command` + `J`
Live Templates Surround with Live Template	`Command` + `Option` + `J`
Navigation Shortcuts Go to Class	`Command` + `O`
Navigation Shortcuts Go to File	`Command` + `Shift` + `O`
Navigation Shortcuts Go to Symbol	`Command` + `Option` + `O`
Navigation Shortcuts Go back to Previous tool window	`F12`
Navigation Shortcuts Go to Editor	`Esc`
Navigation Shortcuts Hide Active/Last Active Window	`Shift` + `Esc`
Navigation Shortcuts Go to Line	`Command` + `L`
Navigation Shortcuts Recent files Popup	`Command` + `E`
Navigation Shortcuts Select current file/Symbol in any View	`Option` + `F1`
Navigation Shortcuts Go to Next/Previous Tab	`Ctrl` + `Left Arrow` / `Ctrl` + `Right Arrow`
Navigation Shortcuts Go to Type Declaration	`Ctrl` + `Shift` + `B`
Navigation Shortcuts Navigate back/forward	`Command` + `Option` + `Left Arrow` / `Command` + `Option` + `Right Arrow`
Navigation Shortcuts Go to last edit location	`Command` + `Shift` + `Backspace`
Navigation Shortcuts Go to super method/super class	`Command` + `U`
Navigation Shortcuts Type Hierarchy	`Ctrl` + `H`
Navigation Shortcuts Method Hierarchy	`Command` + `Shift` + `H`
Navigation Shortcuts Toggle Bookmark	`F3`
Navigation Shortcuts Toggle Bookmark with Mnemonic	`Option` + `F3`
Navigation Shortcuts Show Bookmarks	`Command` + `F3`
Navigation Shortcuts Go to Numbered Bookmark	`Ctrl` + `0..9`
Navigation Shortcuts Show Navigation bar	`Option` + `Home`
Navigation Shortcuts Edit Source	F4
Navigation Shortcuts View Source	`Command` + `Down Arrow`
Navigation Shortcuts Call Hierarchy	`Ctrl` + `Option` + `H`
Navigation Shortcuts File Structure Popup	`Command` + `F12`
Navigation Shortcuts Move to code block end/start	`Command` + `]` / `Command` + `[`
Navigation Shortcuts Go to Declaration	`Command` + `B` /Commad+ `Click`
Navigation Shortcuts Go to Previous/Next Method	`Ctrl` + `Up Arrow` / `Ctrl` + `Down Arrow`
Navigation Shortcuts Open Quick Definition Lookup	`Command` + `Y` / `Command` + `Spacebar`