【IDEA efficiency Double series 】
Plug-in article
Shortcut Keys (2)
Ahem, in the last blog about IDEA, we introduced a lot of useful plugins.
﹏⊙… .Haven’t you seen it? A quick one: one item)
This article is going to cover the IDEA shortcuts that you can use. Mastering these shortcuts may not improve your actual development, but they can actually help you improve your OvO development.
I don’t know how to use IDEA at first. There are so many shortcut keys that I can’t handle Orz.
But don’t worry! Today we fully follow the official Keymap Reference and introduce each block.
Take you from zero to one, learn how to quickly use the shortcut keys of IDEA.
(Narrator: Wow, so many shortcut keys, this must be Orz… ..)
Ha ha, don’t worry, I will highlight some of the more commonly used, if you are interested in others, you can try it yourself!
Shortcut keys do not need to memorize, usually use to remember owO
I will mainly cover editing, refactoring, navigation, and search, of which editing and refactoring are used the most.
(Due to the large space, I am afraid that it is difficult for everyone to accept, so I decided to publish it in several articles)
Without further ado, let’s get started! (One item for a double impression while looking (●’◡’●)
Editing
1. Complete the code
Win ：Ctrl + Shift + Enter
Mac:
This shortcut key is used to help us quickly complete the code, use frequency fried chicken fried chicken high!
Results show
As shown in the GIF, it can quickly help me complete semicolons at the end of sentences, formatting, line breaks, block blocks, etc. (haha, pretty much anything you can think of).
2. View method parameters
Win: Ctrl + P
Mac:
This shortcut is also used very frequently to help us quickly see the parameters in the method.
Especially when methods are overloaded, it is easy to get confused about the position and type of parameters.
The benefits of this shortcut are reflected in the various parameter positions and types are listed, very clear and easy to use.
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3. Review documents quickly
Win: Ctrl + Q
Mac:
This shortcut key is also used very frequently, especially when we call some third-party methods, so that we can quickly see the function of the method and so on.
(This can also be combined with IDEA Settings, mouse hover will have the same effect)
(Tips: The version of my IDEA is 2020.1, the position of different versions may be different, just enter the corresponding text in the search box)
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4. Generate code…
Win: Alt + Insert
Mac:
This shortcut helps us generate a lot of code quickly, greatly increasing our efficiency!
Can help us generate (Getters, Setters, Constructors, hashCode/equals, toString), etc
(At this time a pretty boy Lombok comes over with a smile haha (~ ▽ ~)”
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Ha ha, is not particularly handsome feeling!!
With this shortcut, most of the time we do not need to consider the variable type and variable name, everything is left to IDEA
What do you say if the variable type is not what you want? Ha ha that oneself begin to change next bai 😜)
5. Fast rewrite methods/methods to implement interfaces
Win: Ctrl + O/I
Mac:
These two shortcuts help us to quickly override methods (from a parent or interface) at a good frequency (I’m using less than 2333)
- Ctrl + O
- Ctrl + I
6. Generate code containment blocks
Win: Ctrl + Alt + T
Mac:
This shortcut is mostly used to generate code wrap blocks (oddly named (LLL ￢ω￢))
Examples include if-else, try-catch, synchronized, and so on
Everybody understands next, know what use line ~
7. Quick notes
Win: Ctrl + (Shift) + /
Mac:
High frequency!!!!!
These two shortcuts will help you comment your code quickly.
Ctrl + / comment a single line
Ctrl + Shift + / comment multiple lines
The same goes for uncommenting
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Tips:
Ctrl + / comments // at the top of each line, if you want to set it to GIF in front of the code, you need to set it manually
8. Close the current Tab page (manually modify)
Win: Ctrl + F4
Mac:
This shortcut key is also very common, can quickly help us close the current Tab page, especially when there are many Tab pages, one manual closing is very troublesome.
But given theCtrl + F4The shortcut for closing a Tab page in a browser that is inconvenient to use with one hand isCtrl + W, I’ll manually set it toCtrl + W 了
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Manual setting shortcut keys:
9. Select contiguous code blocks (manually modified)
Win: Ctrl + (Shift) +W
Mac:
Tips: Since Ctrl + F4 has been changed to Ctrl + W, I will manually change this shortcut key to Ctrl + Alt + X, you can adjust it by yourself
This shortcut key is very much used, you can quickly select some code blocks, convenient for us to operate.
For example, select some variables and so on. The more times you press it, the more areas you can select.
Ctrl + Shift + W is the other way around.
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10. Quick operation and quick repair
Win: Alt + Enter
Mac:
Fried chicken is often used!!
This shortcut can be used to quickly generate local variables, generate interface implementation classes and implement related methods, throw exceptions quickly, etc. (try using this shortcut wherever there are red lines.)
Really who uses it knows ha-ha OvO
Results show
11. Format code/remove unnecessary imports
Win: Ctrl + Alt + L/O
Mac:
These two shortcut keys are used quite a lot, one key double connection, can help us to format the code, will look more clean, beautiful.
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12. Quickly indent
Win: Tab/ Shift + Tab
Mac:
Tab increases indentation, Shift + Tab decreases indentation.
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13. Cut, copy, paste, etc
Win: Ctrl + X/C/V/D
Mac:
These shortcuts are very familiar to us.
Ctrl + X — Cut
Ctrl + C — Copy
Ctrl + V — Paste
Ctrl + D — Copies the selected code block. (I often copy a line with Ctrl + D and Ctrl + X)
14. Quickly switch case
Win: Ctrl + Shift + U
Mac:
This shortcut can quickly toggle the case of variables.
15. Quickly fold code blocks
Win: Ctrl + (Shift) + NumPad+/-
Mac:
This shortcut helps us collapse blocks of code quickly, making it easier to read the code.
Ctrl + NumPad+/- Local
Ctrl + (Shift) + NumPad+/- Global
Results show
Wuhu, after reading these shortcut keys, don’t you feel like taking off hahaha. 😀
Don’t worry, there’s more to come!
Next up
One item for the Editing section: Refactor has the most items, and one item will be updated soon (●’◡’●).
If there are any mistakes in this article, please comment on them
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