Productivity shortcuts that accelerate coding work with editing operations like line duplication, movement, deletion, and comment toggling

Ctrl+Alt+↓

Duplicate Lines Down

Duplicates the selected lines downward.

💡 Hint: Duplicate down

🎯 Duplicate selected lines downward to speed up creating similar code and experimental changes

Alt+↑

Move Lines Up

Moves the selected lines up.

💡 Hint: Move up

🎯 Move code lines up to quickly organize logic order

Ctrl+D

Delete Line

Deletes the line where the cursor is located.

💡 Hint: Delete line

🎯 Instantly delete unnecessary lines to streamline code cleanup

Ctrl+/

Toggle Line Comment

Toggles line comment on the selected lines.

💡 Hint: Slash /

🎯 Toggle comments to temporarily disable code for efficient debugging and testing

Ctrl+Shift+/

Block Comment

Creates a block comment for the selected range.

💡 Hint: Shift + slash

🎯 Create block comments for multiple lines to disable large code sections or add explanations

Ctrl+Space

Content Assist

Shows content assist suggestions. After 'sysout', it expands to System.out.println().

💡 Hint: Space for completion

🎯 Dramatically speed up input with code completion and prevent typos

Ctrl+Backspace

Delete Previous Word

Deletes the word before the cursor.

💡 Hint: Backspace word

🎯 Delete previous word in bulk to streamline correction work

Alt+Shift+↑

Expand Selection

Expands the selection by logical units.

💡 Hint: Expand up

🎯 Logically expand selection to enable editing by structural units

Ctrl+Shift+S

Save All

Saves all open files.

💡 Hint: Save all

🎯 Save all files at once to reliably protect work content

Alt+Shift+A

Toggle Block Selection

Toggles block selection mode on/off.

💡 Hint: Area selection

🎯 Edit same positions across multiple lines simultaneously with block selection mode to reduce repetitive work

Eclipse

Productivity shortcuts that accelerate coding work with editing operations like line duplication, movement, deletion, and comment toggling