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Preface:
Beginners must master:
Ctrl:
Alt:
Shift:
Ctrl + Alt:
Ctrl + Shift:
Alt + Shift:
Ctrl + Shift + Alt:
Other:
Preface:
IDEA is difficult for beginners, one of the reasons may be that the shortcut key combination is more and complex but it is also very full, basically all functions can be completed through the shortcut keys, if you master the use of all the shortcut keys of IDEA, then you can completely lose the mouse, and does not affect the development efficiency. Achieve the development of twice the result with half the effort.
Beginners must master:
| Shortcut Key Name | Introduction to Shortcut Keys |
|---|---|
| Alt+Insert | Quickly generate constructors/getters/setters etc |
| Ctrl+N | Quick open class |
| Ctrl+R | Replace text |
| Ctrl+F | Find text |
| Ctrl+X | Delete rows |
| Ctrl+D | Copy the line |
| Ctrl+O | Overriding methods |
| Ctrl+I | Implementation method |
| Ctrl+Y | Delete current row |
| Shift+Ente | Insert the new row down |
| Ctrl+Shift+F | Global search |
| Ctrl + “+ / -“ | Current method expands, collapses |
| Ctrl + Shift + “+ / -“ | All unfold and fold |
| Ctrl+Enter | On a line |
Ctrl:
| Ctrl + F | Current file text lookup |
|---|---|
| Ctrl + R | Current file text replacement |
| Ctrl + Z | undo |
| Ctrl + Y | Delete cursor line |
| Ctrl + X | Cut cursor line |
| Ctrl + C | Copy the cursor line |
| Ctrl + D | Copy the cursor line |
| Ctrl + E | Displays a list of recently opened file records |
| Ctrl + N | Find the class file based on the entered class name |
| Ctrl + G | Jumps to the specified line in the current file |
| Ctrl + J | Insert a custom dynamic code template |
| Ctrl + P | Method parameter prompt display |
| Ctrl + Q | The cursor is located above the variable/class name/method name, etc. (can also be prompted when the supplementary press), display the document content |
| Ctrl + U | Goes to the method/interface definition of the superclass of the method where the current cursor is located |
| Ctrl + B | Enter the interface or definition of the method/variable where the cursor is located, equivalent to Ctrl + left click |
| Ctrl + H | Displays the hierarchy of the current class |
| Ctrl + / | Code on the line where the comment cursor is located uses a different comment symbol depending on the current file type |
| Ctrl + [ | Move the cursor to the start of the curly braces of the current code |
| Ctrl + ] | Move the cursor to the end of the curly braces of the current code |
| Ctrl + F1 | Displays the error message at the error code where the cursor is located |
| Ctrl + F3 | Goes to the next reference position for the selected word |
| Ctrl + F4 | Close the current edit file |
| Ctrl + F8 | In Debug mode, set the current behavior of the cursor to a breakpoint. If it is already a breakpoint, remove the breakpoint |
| Ctrl + F9 | Perform the Make Project operation |
| Ctrl + F11 | Select the file/folder and set it using a mnemonic |
| Ctrl + F12 | The current file structure layer is displayed. You can directly enter the file structure layer for filtering |
| Ctrl + Tab | Edit window switch, if in the process of switch and press delete, is to close the corresponding selected window |
| Ctrl + Enter | Smart line separation |
| Ctrl + End | Skip to the end of file |
| Ctrl + Home | Skip to file header |
| Ctrl + Space | It is used by the input method on the Windows operating system by default. You are advised to change it to Ctrl + comma (mandatory). |
| Ctrl + Delete | Delete the word or sentence after the cursor |
| Ctrl + BackSpace | Delete the word or sentence in front of the cursor |
| Ctrl + 1, 2, 3… 9 | Locate the bookmark location of the corresponding value |
| Ctrl + Left click | On the title of the open file, pop up the file path |
| Ctrl + Cursor position | Press Ctrl not to release to display a summary of the class information where the cursor is located |
| Ctrl + left arrow key | The cursor jumps to the top left of the current word/sentence |
| Ctrl + Right arrow key | The cursor jumps to the beginning of the current word/sentence on the right |
| Ctrl + forward arrow keys | Equivalent to the mouse wheel forward effect |
| Ctrl + arrow keys | Equivalent to the mouse wheel backward effect |
Alt:
| Alt + ` | Displays the version control common operations menu pop-up layer |
|---|---|
| Alt + Q | A prompt displays the declaration/context information for the current class |
| Alt + F1 | Displays the current file select target pop-up layer. There are many targets in the pop-up layer to choose from |
| Alt + F2 | For the previous page, the pop-up layer shows the various browsers opening the target selection |
| Alt + F3 | Select the text and go down one by one to find the same text and highlight it |
| Alt + F7 | Find the cursor where the method/variable/class was called |
| Alt + F8 | In the Debug state, select an object, and a dialog box is displayed. You can view the debugging result of the input expression |
| Alt + Home | Locate/display the Navigation Bar to the current file |
| Alt + Enter | IntelliJ IDEA provides a quick fix option based on the cursor’s location, and the prompt results vary depending on the cursor’s location |
| Alt + Insert | Code is generated automatically, such as generating object set/get methods, constructors, toString(), etc |
| Alt + left arrow key | Press left to switch to the currently open file view |
| Alt + right arrow key | Press the right direction to switch to the currently open file view |
| Alt + front arrow keys | The current cursor jumps to the previous method name location in the current file |
Shift:
| Shift + F1 | Connect to an external document if there is one |
|---|---|
| Shift + F2 | Jumps to the previous highlighted error or warning location |
| Shift + F3 | In search mode, the search matches the previous one |
| Shift + F4 | Open the currently open file in a new Windows window and keep the old window |
| Shift + F6 | Rename a file/folder |
| Shift + F7 | In Debug mode, intelligent step in. There are multiple method calls on the line where the breakpoint is located, which method will pop up |
| Shift + F8 | In Debug mode, jump out and display the same effect as F9 |
| Shift + F9 | Equivalent to clicking the Debug button in the toolbar |
| Shift + F10 | Equivalent to clicking the Run button in the toolbar |
| Shift + F11 | Pop-up bookmark display layer |
| Shift + Tab | dedent |
| Shift + ESC | Hides the current or last active tool window |
Ctrl + Alt:
| Ctrl + Alt + L | Format code that can be used for both the current file and the entire package directory |
|---|---|
| Ctrl + Alt + O | Optimized imported classes that can be used for both the current file and the entire package directory |
| Ctrl + Alt + I | Automatic indenting of code in the line or selected part of the cursor, similar to formatting |
| Ctrl + Alt + T | Popup wrap option popup layer for selected code |
| Ctrl + Alt + J | A template selection window pops up, adding the selected code to the dynamic template |
| Ctrl + Alt + H | The hierarchy |
| Ctrl + Alt + B | Using the method name of a call jumps to the implementation and can skip the interface |
| Ctrl + Alt + V | Rapid introduction variable |
| Ctrl + Alt + Y | Sync, refresh |
| Ctrl + Alt + S | Open IntelliJ IDEA system Settings |
| Ctrl + Alt + F7 | Show where to use it. Look for where the class or variable is called, using a pop-up box to find it |
| Ctrl + Alt + F11 | Switch to the full-screen mode |
| Ctrl + Alt + Enter | A line is displayed above the line where the cursor is located, and the cursor moves to the new line |
| Ctrl + Alt + Home | Popup the file popup layer associated with the current file |
| Ctrl + Alt + Space | Class name autocomplete |
Ctrl + Shift:
| Ctrl + Shift + F | Finds the entire project or files within a specified directory based on the input |
|---|---|
| Ctrl + Shift + R | Replace the corresponding content based on the input, ranging from the entire project or files in the specified directory |
| Ctrl + Shift + J | Automatically merges the next line at the end of the current line |
| Ctrl + Shift + Z | Cancel to cancel the |
| Ctrl + Shift + W | Progressive deselect code blocks. You can select the word or paragraph where the cursor is located. Pressing continuously will expand the deselect range |
| Ctrl + Shift + N | Locate/open a file/directory by file name. Open a directory by adding a forward slash after the input |
| Ctrl + Shift + U | Turns the selected code into lowercase/uppercase |
| Ctrl + Shift + T | A unit test class is generated for the current class and can be selected if one already exists |
| Ctrl + Shift + C | Copies the current file disk path to the clipboard |
| Ctrl + Shift + V | Pop-up cache of the most recent copy of the content manager pop-up layer |
| Ctrl + Shift + E | A pop-up layer that displays a list of recently modified files |
| Ctrl + Shift + H | Display method hierarchy |
| Ctrl + Shift + B | Jump to the type declaration |
| Ctrl + Shift + I | Quickly view the definition of the method or class where the cursor is located |
| Ctrl + Shift + A | Look for actions/Settings |
| Ctrl + Shift + F7 | Highlight all the selected text and press Esc to highlight it away |
| Ctrl + Shift + F8 | In Debug mode, specify a breakpoint entry condition |
| Ctrl + Shift + F9 | Compile the selected file/package/Module |
| Ctrl + Shift + F12 | Editor maximization |
| Ctrl + Shift + Space | Intelligent code tips |
| Ctrl + Shift + Enter | Auto-end code, add semicolon automatically at the end of the line |
Alt + Shift:
| Alt + Shift + N | Select/add task |
|---|---|
| Alt + Shift + F | Displays the popup layer added to favorites |
| Alt + Shift + C | View the list of changes of recent operation items |
| Alt + Shift + F | Add to favorites |
| Alt + Shift + I | View the current file of the project |
| Alt + Shift + F7 | In Debug mode, the next step is to enter the body of the current method or, if there are still methods in the body, to enter the embedded method, and so on |
| Alt + Shift + F9 | The Debug optional menu is displayed |
| Alt + Shift + forward arrow keys | Move the cursor line up |
| Alt + Shift + rear arrow keys | Move the cursor line down |
Other:
| F2 | Skip to the next highlighted error or warning location |
|---|---|
| F3 | In search mode, locate the next match |
| F4 | The source editor |
| F7 | In Debug mode, go to the next step. If the current line breakpoint is a method, enter the current method body. If the method body still has methods, do not enter the embedded method |
| F8 | In Debug mode, enter the next step, if the current line breakpoint is a method, do not enter the current method body |
| F9 | In Debug mode, the program resumes running, but stops at the next breakpoint if the code below the breakpoint still has a breakpoint |
| F11 | Add a bookmark |
| F12 | Return to the previous tool window |
| Tab | The indentation |
| ESC | Go to the code file window from the tools window |
Ok, that’s all for today, friends like, favorites, comments, one key three go, see you next time ~~