Summary of the most commonly used shortcut keys in Java

1. Ctrl+shift+r: Open Resource

This is probably the most time-saving combination of all shortcut keys. This set of shortcuts lets you open any file in your workspace, and you only need to press the first few letters of the file name or mask name, such as Applic*.xml. The drawback is that this set of shortcuts is not available in all views.

2. Ctrl+o: Fast Outline

If you want to see the methods of the current class or a particular method, but do not want to pull the code down, and do not want to use the search function, then use Ctrl+o bar. It can list all the methods and properties in the current class, you just enter the method name you want to query, and click Enter to jump directly to where you want to go.

3. Ctrl+e: Quick Convert Editor

This set of shortcut keys will help you navigate between the open editors. Use ctrl+page down or ctrl+page up to browse the tabs before and after, but ctrl+e is more efficient when many files are open.

4. Ctrl+2,l: Assigning a value to a local variable

During development, I often write methods, such as calendar.getinstance (), and then assign the results of a method to a local variable by ctrl+2 shortcut keys. This saves me the input class name, the variable name, and the time the declaration was imported. The ctrl+f effect is similar, but the effect is to assign the result of the method to a field in the class.

5. Alt+shift+r: Renaming

Renaming properties and methods was a hassle a few years ago, requiring a lot of searching and replacing so that the code became fragmented. Today's Java IDE provides source-processing functionality, as is eclipse. Now, the renaming of variables and methods is very simple, and you'll get used to renaming each time a better alternative name appears. To use this feature, move the mouse over the property name or method name, press Alt+shift+r, enter a new name, and then click Enter. This is done. If you rename a property in the class, you can click Alt+shift+r two times, this will call out the Source Processing dialog box, you can implement the get and set method of automatic renaming.

6. Alt+shift+l and Alt+shift+m: Extracting local variables and methods

Source processing also includes the ability to extract variables and methods from chunks of code. For example, to create a constant from a string, select the text and press Alt+shift+l. If the same string appears elsewhere in the same class, it is automatically replaced. The method extraction is also a very convenient function. Breaking up large methods into smaller, well-defined methods can greatly reduce complexity and improve the testability of your code.

7. Shift+enter and Ctrl+shift+enter

Shift+enter creates a blank line below the current line, regardless of whether the cursor is at the end of the row. Ctrl+shift+enter inserts a blank line before the current line.

8. ALT + arrow key

This is also a magic weapon to save time. This combination moves the contents of the current line up or down. In the Try/catch section, this shortcut is especially useful.

9. Ctrl+m

Large display screen can improve productivity is known to everyone. Ctrl+m is the shortcut key for maximizing the editor window.

CTRL +. And Ctrl+1: Next error and quick change

CTRL +. Moves the cursor to the next report fault or warning in the current file. This set of shortcut keys I generally use with ctrl+1, that is, modify the proposed shortcut keys. The new version of Eclipse suggestions are good to help you solve a lot of problems, such as missing parameters in the method, Throw/catch exception, non-executed methods and so on.

More shortcut key combinations can be viewed at Eclipse Press Ctrl+shift+l.

• Ctrl + Shift + O : Import and manage Imports statements
• Ctrl + Shift + T : Opens open Type find class file
• Ctrl + Shift + F4 : Close the window where you are opening
• Ctrl + O : Open declarations
• Ctrl + E : Open Editor (toggle window)
• Ctrl +/ : note the bank
• Alt + Shift + R : rename
• Alt + Shift + L : Extract Local variables
• Alt + Shift + M : Extraction method
• F3 : Open Declaration

Ctrl + D: Delete Bank
Ctrl + SHIFT + F: Shaping

Ctrl + Alt +↓ (↑): Copy line down (UP)
Alt +↓ (↑): Move the bank down (UP)
Alt +. : Output Hints
Note: Personally think this shortcut is the most useful, (1) In the Java class, to output the main method, as long as the input main and then use this shortcut key to press ENTER, to output System.out.println (), you just enter SYSO and then use this shortcut to press ENTER Again, for example, if you want to overwrite the ToString () method of the parent class, you only need to enter to and then press ENTER with this shortcut; If you want to use a class that does not have an import (such as Calendar), you can simply enter the CA and use the shortcut key to select For example, if you want to generate a Get,set method for a field, you only need to enter get and use this shortcut to generate (default is public); (2) in the JSP page, you can use this prompt to enter a label (the tag attribute is indicated in the label). (3) This shortcut key is also available in XML.

Alt+shift+j Adding a doc comment to a function

# Ctrl + Shift + O: Import and manage Imports statements
After using the Formatonsave plug-in has not been used, save the time automatically import.
# Ctrl + Shift + T: Opens open Type find class file
# Ctrl + Shift + F4: Close the window where it is opened
With CTRL + W
# Ctrl + o:open declarations
# Ctrl + E: Open editor (toggle window)
# Ctrl +/: Note the bank
# Alt + Shift + R: Rename
# Alt + Shift + L: Extract local variables
# Alt + Shift + M: Extraction method
# F3:open Declaration
With Ctrl+mouse

A menu will pop up after Alt+shift+x,

Ctrl SHIFT + F auto-adjust formatting

Ctrl+1 Quick Fix (the most classic shortcuts, you don't have to say more)
Ctrl+d: Delete When moving forward
Ctrl+alt+↓ Copy the current row to the next row (replication incremented)
Ctrl+alt+↑ Copy the current line to the previous row (replication incremented)
Alt+↓ the current line and the next line of interaction (especially useful, can be omitted first cut, then pasted)
Alt+↑ the current line and the upper row interaction position (IBID.)
alt+← the previous edited page
alt+→ next Edit page (of course, for the above article)
Alt+enter displays the properties of the currently selected resource (project, or file or file)
Shift+enter inserts a blank row on the next line of the current row (at which point the mouse can be at any position in the current row, not necessarily the last)
Shift+ctrl+enter Insert blank line in current line (principle above)
Ctrl+q positioning to the last edited place
Ctrl+l positioning in a row (for people with programs over 100 have the gospel)
Ctrl+m maximize the current edit or view (and vice versa)
ctrl+/comment on the current line, and then uncomment it
Ctrl+o Quick Display OutLine
Ctrl+t quickly displays the inheritance structure of the current class
Ctrl+w Closing the current editer
Ctrl+k the selected word quickly navigates to the next
Ctrl+e quick display of the current Editer drop-down list (in bold if the current page does not appear)
ctrl+/(numpad) collapses all code in the current class
Ctrl+x (keypad) expands all code in the current class
Ctrl+space Code Helper to complete some code insertion (but general and input method conflict, you can modify the input method hotkey, you can also take up

alt+/to replace)
Ctrl+shift+e Display manager that manages all of the currently open view (you can choose to close, activate, and so on)
Ctrl+j forward Incremental lookup (after pressing CTRL+J, each letter editor you enter provides a quick match to navigate to a word, if not

There, then in the Stutes line display did not find, check a word, especially practical, this function idea two years ago.
CTRL+SHIFT+J Reverse incremental lookup (same as above, except forward)
Ctrl+shift+f4 Close all open editer
Ctrl+shift+x the text that is currently selected is all stale lowercase
Ctrl+shift+y turns the currently selected text to lowercase
Ctrl+shift+f formatting of the current code
Ctrl+shift+p is positioned to the match (for example {}) (after the cursor is positioned behind the match and back to the front, the counter

Of
The following shortcut keys are commonly used in refactoring, I like and commonly used to tidy up (note: General refactoring of the shortcut keys are Alt+shift

The beginning of the)
Alt+shift+r rename (it's my favorite one, especially the variable and class rename, which can save a lot of labor than the manual method.)

)
Alt+shift+m Extraction Method (This is one of the most common methods of refactoring, especially useful for a whole bunch of mud codes)
Alt+shift+c Modify the function structure (more practical, there are n functions called this method, modified once done)
Alt+shift+l extract Local variables (you can directly extract some magical numbers and strings into a variable, especially when multiple calls are made)
Alt+shift+f change the local variable in class to a field variable (more useful function)
Alt+shift+i Merge variables (this may be a bit inappropriate inline)
ALT+SHIFT+V moving functions and variables (not commonly used)
Alt+shift+z reconstruction of Regret medicine (Undo)
Edit
scope function Shortcut keys
Global Find and replace Ctrl+f
Text Editor Find previous Ctrl+shift+k
Text Editor Find Next Ctrl+k
Global Undo Ctrl + Z
Global Replication Ctrl + C
Global Restore Previous selection alt+shift+↓
Global clipping Ctrl+x
Global Quick Fix ctrl1+1
Global Content Assist alt+/
Global all check Ctrl + A
Delete delete globally
Global context information ALT +?
Alt+shift+?
Ctrl+shift+space
Java Editor display tooltip description F2
Java Editor Select encapsulated element alt+shift+↑
The Java editor selects the previous element alt+shift+←
The Java editor selects the next element alt+shift+→
Text Editor incremental find Ctrl+j
Text Editor incremental reverse lookup ctrl+shift+j
Global Paste Ctrl + V
Global Redo Ctrl+y

View
scope function Shortcut keys
Global magnification ctrl+=
Global Shrink ctrl+-

Window
scope function Shortcut keys
Global activation Editor F12
Global Switch Editor Ctrl+shift+w
Global on an editor Ctrl+shift+f6
Globally on a view CTRL+SHIFT+F7
Global on a Perspective view Ctrl+shift+f8
Global Next editor Ctrl+f6
Global Next View Ctrl+f7
Global Next Perspective Ctrl+f8
The text editor displays the ruler context menu Ctrl+w
Global Display View menu CTRL+F10
Global Display System Menu alt+-

Navigation
scope function Shortcut keys
Java Editor Open Structure ctrl+f3
Global Open Type Ctrl+shift+t
Global Open type Hierarchy F4
Global Open claims F3
Global Open External Javadoc shift+f2
Global Open Resource Ctrl+shift+r
Global fallback history alt+←
Global forward History alt+→
Global on a CTRL +,
Global Next Ctrl +.
The Java Editor displays outline Ctrl+o
Global open type Ctrl+shift+h in the hierarchy
Global go to matching parentheses ctrl+shift+p
Global go to previous edit location Ctrl+q
The Java editor goes to the previous member Ctrl+shift+↑
The Java editor goes to the next member Ctrl+shift+↓
Text editor go to line ctrl+l

Search
scope function Shortcut keys
Global presence in file Ctrl+shift+u
Global Open Search dialog box ctrl+h
Claims in the global workspace Ctrl+g
References in the global workspace Ctrl+shift+g

Text editing
scope function Shortcut keys
Text Editor overwrite toggle Insert
Text Editor Roll Line ctrl+↑
The text editor scrolls the line ctrl+↓

File
scope function Shortcut keys
Global Save Ctrl+x
Ctrl+s
Global Print Ctrl+p
Global Shutdown CTRL+F4
Global Save All Ctrl+shift+s
Global all off CTRL+SHIFT+F4
Global Properties Alt+enter
Global New CTRL + N

Project
scope function Shortcut keys
Global All Build Ctrl+b

Source
scope function Shortcut keys
Java Editor Formatting ctrl+shift+f
Java Editor Uncomment ctrl+\
Java Editor Comment ctrl+/
Java Editor Add import ctrl+shift+m
Java Editor Organization import Ctrl+shift+o
The Java Editor uses try/catch blocks to surround the settings, which are too common, so it is recommended to set them up here.
You can also use ctrl+1 to automatically fix it.

Run
scope function Shortcut keys
Global single-Step return F7
Global single-Step skip F6
Global single-step jump into F5
Global single-Step jump selection Ctrl+f5
Global Debug Last started F11
Global Continue F8
Global use filters to step SHIFT+F5
Global Add/Remove breakpoints Ctrl+shift+b
Global Display Ctrl+d
Global Run last boot ctrl+f11
Global Run to row ctrl+r
Global Execution Ctrl+u

Refactoring
scope function Shortcut keys
Global Undo Refactoring Alt+shift+z
Global Extraction Method Alt+shift+m
Global decimation local variable alt+shift+l
Global inline Alt+shift+i
Global Mobile Alt+shift+v
Global Rename Alt+shift+r
Global Redo Alt+shift+y
Ctrl+1 Quick Fix (the most classic shortcuts, you don't have to say more)
Ctrl+d: Delete When moving forward
Ctrl+alt+↓ Copy the current row to the next row (replication incremented)
Ctrl+alt+↑ Copy the current line to the previous row (replication incremented)
Alt+↓ the current line and the next line of interaction (especially useful, can be omitted first cut, then pasted)
Alt+↑ the current line and the upper row interaction position (IBID.)
alt+← the previous edited page
alt+→ next Edit page (of course, for the above article)
Alt+enter displays the properties of the currently selected resource (project, or file or file)
Shift+enter inserts a blank row on the next line of the current row (at which point the mouse can be at any position in the current row, not necessarily the last)
Shift+ctrl+enter Insert blank line in current line (principle above)
Ctrl+q positioning to the last edited place
Ctrl+l positioning in a row (for people with programs over 100 have the gospel)
Ctrl+m maximize the current edit or view (and vice versa)
ctrl+/comment on the current line, and then uncomment it
Ctrl+o Quick Display OutLine
Ctrl+t quickly displays the inheritance structure of the current class
Ctrl+w Closing the current editer
Ctrl+k the selected word quickly navigates to the next
Ctrl+e quick display of the current Editer drop-down list (in bold if the current page does not appear)
ctrl+/(numpad) collapses all code in the current class
Ctrl+x (keypad) expands all code in the current class
Ctrl+space Code Helper to complete some code insertion (but general and input method conflict, you can modify the input method hotkey, you can also take up

alt+/to replace)
Ctrl+shift+e Display manager that manages all of the currently open view (you can choose to close, activate, and so on)
Ctrl+j forward Incremental lookup (after pressing CTRL+J, each letter editor you enter provides a quick match to navigate to a word, if not

There, then in the Stutes line display did not find, check a word, especially practical, this function idea two years ago.
CTRL+SHIFT+J Reverse incremental lookup (same as above, except forward)
Ctrl+shift+f4 Close all open editer
Ctrl+shift+x the text that is currently selected is all stale lowercase
Ctrl+shift+y turns the currently selected text to lowercase
Ctrl+shift+f formatting of the current code
Ctrl+shift+p is positioned to the match (for example {}) (after the cursor is positioned behind the match and back to the front, the counter

Of
The following shortcut keys are commonly used in refactoring, I like and commonly used to tidy up (note: General refactoring of the shortcut keys are Alt+shift

The beginning of the)
Alt+shift+r rename (it's my favorite one, especially the variable and class rename, which can save a lot of labor than the manual method.)

)
Alt+shift+m Extraction Method (This is one of the most common methods of refactoring, especially useful for a whole bunch of mud codes)
Alt+shift+c Modify the function structure (more practical, there are n functions called this method, modified once done)
Alt+shift+l extract Local variables (you can directly extract some magical numbers and strings into a variable, especially when multiple calls are made)
Alt+shift+f change the local variable in class to a field variable (more useful function)
Alt+shift+i Merge variables (this may be a bit inappropriate inline)
ALT+SHIFT+V moving functions and variables (not commonly used)
Alt+shift+z reconstruction of Regret medicine (Undo)
Edit
scope function Shortcut keys
Global Find and replace Ctrl+f
Text Editor Find previous Ctrl+shift+k
Text Editor Find Next Ctrl+k
Global Undo Ctrl + Z
Global Replication Ctrl + C
Global Restore Previous selection alt+shift+↓
Global clipping Ctrl+x
Global Quick Fix ctrl1+1
Global Content Assist alt+/
Global all check Ctrl + A
Delete delete globally
Global context information ALT +?
Alt+shift+?
Ctrl+shift+space
Java Editor display tooltip description F2
Java Editor Select encapsulated element alt+shift+↑
The Java editor selects the previous element alt+shift+←
The Java editor selects the next element alt+shift+→
Text Editor incremental find Ctrl+j
Text Editor incremental reverse lookup ctrl+shift+j
Global Paste Ctrl + V
Global Redo Ctrl+y

View
scope function Shortcut keys
Global magnification ctrl+=
Global Shrink ctrl+-

Window
scope function Shortcut keys
Global activation Editor F12
Global Switch Editor Ctrl+shift+w
Global on an editor Ctrl+shift+f6
Globally on a view CTRL+SHIFT+F7
Global on a Perspective view Ctrl+shift+f8
Global Next editor Ctrl+f6
Global Next View Ctrl+f7
Global Next Perspective Ctrl+f8
The text editor displays the ruler context menu Ctrl+w
Global Display View menu CTRL+F10
Global Display System Menu alt+-

Navigation
scope function Shortcut keys
Java Editor Open Structure ctrl+f3
Global Open Type Ctrl+shift+t
Global Open type Hierarchy F4
Global Open claims F3
Global Open External Javadoc shift+f2
Global Open Resource Ctrl+shift+r
Global fallback history alt+←
Global forward History alt+→
Global on a CTRL +,
Global Next Ctrl +.
The Java Editor displays outline Ctrl+o
Global open type Ctrl+shift+h in the hierarchy
Global go to matching parentheses ctrl+shift+p
Global go to previous edit location Ctrl+q
The Java editor goes to the previous member Ctrl+shift+↑
The Java editor goes to the next member Ctrl+shift+↓
Text editor go to line ctrl+l

Search
scope function Shortcut keys
Global presence in file Ctrl+shift+u
Global Open Search dialog box ctrl+h
Claims in the global workspace Ctrl+g
References in the global workspace Ctrl+shift+g

Text editing
scope function Shortcut keys
Text Editor overwrite toggle Insert
Text Editor Roll Line ctrl+↑
The text editor scrolls the line ctrl+↓

File
scope function Shortcut keys
Global Save Ctrl+x
Ctrl+s
Global Print Ctrl+p
Global Shutdown CTRL+F4
Global Save All Ctrl+shift+s
Global all off CTRL+SHIFT+F4
Global Properties Alt+enter
Global New CTRL + N

Project
scope function Shortcut keys
Global All Build Ctrl+b

Source
scope function Shortcut keys
Java Editor Formatting ctrl+shift+f
Java Editor Uncomment ctrl+\
Java Editor Comment ctrl+/
Java Editor Add import ctrl+shift+m
Java Editor Organization import Ctrl+shift+o
The Java Editor uses try/catch blocks to surround the settings, which are too common, so it is recommended to set them up here.
You can also use ctrl+1 to automatically fix it.

Run
scope function Shortcut keys
Global single-Step return F7
Global single-Step skip F6
Global single-step jump into F5
Global single-Step jump selection Ctrl+f5
Global Debug Last started F11
Global Continue F8
Global use filters to step SHIFT+F5
Global Add/Remove breakpoints Ctrl+shift+b
Global Display Ctrl+d
Global Run last boot ctrl+f11
Global Run to row ctrl+r
Global Execution Ctrl+u

Refactoring
scope function Shortcut keys
Global Undo Refactoring Alt+shift+z
Global Extraction Method Alt+shift+m
Global decimation local variable alt+shift+l
Global inline Alt+shift+i
Global Mobile Alt+shift+v
Global Rename Alt+shift+r
Global Redo Alt+shift+y

Summary of the most commonly used shortcut keys in Java