1. The parameters may be provided to make it more fluid
File Path: D: \ develop \ IDEA \ bin
File name: idea64.exe.vmoptions
Modify: -Xms128m -> -Xms500m
-Xmx750m -> -Xmx1500m
-XX:ReservedCodeCacheSize=240m -> -XX:ReservedCodeCacheSize=500m
2. Some basic operations
Manual and automatic correction code for the leader packet: Alt + Enter;
Ctrl + Y: Delete cursor line
Ctrl + D: copy cursor line, inserted below the cursor position (row repeat)
Ctrl + Alt + L: formatting code
Ctrl + /: single-line comments
Ctrl + Shift + /: Select the code comments, multi-line comments, and then uncomment
Ctrl + Ins: automatic code generation, toString, get, set or the like
Ctrl + Shift + down arrow: move the current code line
Basic Settings: https://www.bilibili.com/video/av51558617/?p=8
(Font, color, etc.)
Maven: When we create a new maven project, each modification .pom file, the lower right corner there will be bomb box prompts us to add a dependency
Import Changes Enable Auto-Import: Import rely on our newly added
Enable Auto-Import: After dependencies automatically download the file after changing .pom
If you want to cancel the auto-import dependence: Open setting → maven → importing: Import Maven projects automatically deselected
Some common shortcuts
------- Udea window is maximized ----> on Windows: Ctrl + Shift + F12
-------- ctrl + z withdrawn Code
------- ctrl + shift + z withdrawn Code Recovery
------- ctrl + Alt + V (variable returns the attribute)
------- Shift + Ctrl + U (handover case)
------- the Ctrl + the Alt + L, format code
------- Ctrl + D to copy the current line to the next line
------- : the Ctrl + the Alt + T, can be encased in a block of code, for example: try / catch can throw error
------- : a shortcut (cursor to the line, Alt + Enter), exceptions can be thrown outside, may try-catch:
------- Ctrl + the Shift + Space, auto-completion of code (tips)
------- the Ctrl + O, override method
------- Ctrl + the I, Implementation
------- ITAR array for generating a code block
------- iter for generating an enhanced
------- itli generated traversal List
------- itit generated iterator iteration
------- from the annotation definition template (custom): M the Tab +
------- from annotation method defined template (custom) : R & lt the Tab +
------- Ctrl + shift + enter the end of the sentence plus;
------- Lianan two shift under Find Files
------- CtrL the Shift + r + Global Search:
------- ctrl + r to replace the current page word
------- Code Format: Shfit + G (custom) // Ctrl + Alt + L
------ direct view and access shortcuts interface classes : Ctrl + Alt + left mouse button
----- two standalone zoom window:
----- alt + capslk (handover case) or left mouse button: ALT + mouse button column editing mode
------------- Ctrl + Enter Shift + end of the line is not only used semicolons;
Advanced shortcut key idea:
1 View interface implementation class: Ctrl + Alt + B:
2: a view in what class Method: Alt + left sidebar Structure 7 points or
2 returns the up / down cursor place: Alt + Ctrl + arrow (to the left) and Alt + Ctrl + arrow (rightward) --- (full keyboard)
If the machine is: Alt + Ctrl + Pgup and Alt + Ctrl + Down
3: View Java method call tree (the called / melody): Ctrl + Alt + H
5: View class inheritance diagram: Ctrl + Alt + U
6: View the current class inheritance tree: Ctrl + H
7: see the definition of a variable is called Where: Ctrl + Alt + F7
View a class there any way: Alt + 7 points or left sidebar Structure
----------- ------ alt + left-column editing
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