1. Quickly generate main

##Input psvm

2. Quickly generate System.out.print

Use sout

3. File Saving

IDEA saves automatically and does not require us to Ctrl S to save.

4. Delete a line

Ctrl Y

5. New, new, added shortcut keys

Alt lnsert

6. Switch java program

Alt right arrow or Alt left arrow

7. Directory display and closing

Ctrl Fn F12

Eight. Run

Ctrl Shift F10

9. Prompt method parameters

Ctrl p

10. Switch windows

Alt (number)

We can place the mouse on the window button to view the shortcut key numbers.

Eleven. Search

##Ctrl FCurrent Find in filesShift Ctrl FFind in current projectShift ShiftQuick search Ctrl NFind Class

Shortcut keys	Introduction
Ctrl Shift N	Find file
Ctrl Shift Alt N	Find Symbol (method name)

12. Jump switch

##Ctrl ERecently FileCtrl TabSwitch fileCtrl Alt arrow keyJump to the history cursor location AtCtrl GJump to the specified line number

Finally we can also customize the shortcut keys or modify the shortcut keys, File–>Settings–>Keymap

Thirteen. Edit related

Shortcut keys	Introduction

##Ctrl W Quickly selectAlt Up and down arrow keysMethod to jump quicklyCtrl Alt EnterIn Insert a line before the current lineShift EnterInsert a line after the current line

Fourteen. Read the source code

Shortcut keys	Introduction

##Ctrl P Method parameter promptCtrl Shift left and right arrow keysMove window dividing lineCtrl HHierarchical relationship of classes

Supplement:

Shortcut keys	Introduction

##Ctrl W Select the word, line, block, etc. where the cursor is locatedCtrl Alt LeftThe cursor returns to the last editing position

Shortcut keys	Introduction
F2	Quickly locate the file error location
Ctrl E	Recent file
Ctrl Alt Enter	Insert a line before the current line
Shift Enter	Add a line below the current line
Ctrl Alt O	Automatically delete unused lines Used import
Ctrl Alt T	Shortcut code block try catch etc.
Alt mouse selection	Column selection mode, select by column
Alt 7	List all methods of the current column
Ctrl Alt V	Extract the code, extract the method parameters as variables, Then the method call passes in the newly generated variables
Ctrl Alt P	Extract the content into the parameters of the method
Ctrl Alt C	Will Extract the content into a constant
Ctrl Alt M	Extraction method, extract the selected code into the method