Comments and shortcut keys for code in Java

Comments and shortcut keys for code in Java

Add the necessary notes to a responsible, ethical front-end must have good habits,

Can greatly improve the maintainability of code, readability.

Java code Comment shortcut key: ctrl+shift+/
First, familiarize yourself with the HTML, CSS, and JS notation:
1. HTML comment Syntax:

<!--the contents of the note--

2. CSS annotation Syntax

/* Comment Content *//*----------Text style start----------*/

3. JavaScript annotations

Comment */* Comment content */

The next step is to summarize where the comments are used in these types of code, and how to write comments. ( may not be the same according to personal habits)
1. HTML annotations
Where to use:
1) It is generally used after the end of some major node tags, such as:

<class=<class="Main" > ... </div><div><!--wrap end-->        

2) Use at the end of some loops, such as:

<UlClass="List" ><li>111111</li> <li>222222</li> <Li >333333</li> </ul><!--list loop-->   

2. CSS Annotations
It is generally used to define the top of a module style, indicating which module the style is acting on, such as:

. Comment{... . Photo{... . Share{... . Vote{... }

3. JavaScript annotations
Generally add comments to the upper part of a function function, explain function, author, author information, modification time.

//      //      //      //      //======================================================== 

Finally, the comment is also a character and there will be traffic generated. Therefore, when the page is published to the official address, it is best to add a step to optimize the process.
CTRL +/

CTRL + SHIFT + C

The following is a list of all the shortcut keys in MyEclipse:
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 the insertion of some code (but the general and IME 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, it is not found in the Stutes line, check a word, especially useful, 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 position to the match (for example {}) (after locating from the front, the cursor is in the match, back to front, or vice versa)

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 beginning of the)
Alt+shift+r rename (is my own favorite, especially the variables and classes of rename, than the manual method can save a lot of labor)
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

Comments and shortcut keys for code in Java