Tips for using eclipse tools

Tip: Cancel automatic validation
There are a bunch of validation items, such as XML, JSP, JSF, and JS. We don't have to perform automatic verification on all of them. We only need to perform manual verification when necessary, and the speed will immediately increase to several levels!
Cancellation Method: windows --> perferences --> myeclipse --> Validation: In addition to selecting all the check boxes under manual, the manual verification method is not selected:
On the file to be verified, right-click --> myeclipse --> RUN Validation
Automatic Code formatting: Ctrl + Shift + F. The code is automatically formatted, which is very convenient.
Quick execution program: When Ctrl + F11 is executed for the first time, it will ask you about the execution mode. After the setting, it will be executed quickly as long as you press the hot key.
CTRL + Shift +/Add segment comments /**/
CTRL + Shift +/uncomment /**/
CTRL +/Add a line comment or cancel a line comment
CATEGORY required for automatic import: Ctrl + Shift + M Ctrl + Shift + O it seems that Ctrl + Shift + O can also be used
Important skills (don't use it if the machine configuration is low)
In eclipse ". "An automatic prompt is displayed, which is used for the automatic prompt of class members. However, sometimes we want it to display an automatic prompt after we enter the first letter of the class, you can save a lot of input time (even if you press Alt +/, a prompt will appear, but you still need to press the button one more time, which is too troublesome ).
From WINDOW> preferences> JAVA> editor> content assist> auto-activation ". "add the first Subtitle We Need to automatically prompt after the number, such as" ahiz ".
Then we return to the eclipse development environment and enter "A". The prompt is displayed.
However, we can find that the input box in auto-activation can only contain up to five letters. Maybe eclipse developers worry that too many input will affect performance, however, the performance of the computer is not needed, so we need to break this restriction.
In fact, the above is a foreshadowing, to create an atmosphere, it seems that what we want to do below is very good, in fact, it is not, everything is very simple.
In ". "Enter a few characters, such as" abij ", and return to the development environment. Choose File> export> General> preferences> to save your preference, for example, C: /. EPF
Open a. EPF in any text editor, find the string "abij", find it, and replace it with "abcdefghijklmnopqrstuvwxyz". In short, what do you want !! Then return to eclipse, file-> Import-> General-> preferences-> Import. EPF file. at this time, you will find that you will receive an automatic prompt when entering any subtitles. great !!!
Finally, it is better to change the pop-up time to less than 100 milliseconds for the automatic prompt to be displayed, otherwise you will be finished and the automatic prompt will pop up :), but it also depends on the machine performance.

Myeclipse automatically prompts the background color settings (not so light)
Window -- preference -- Java -- editor-completion proposals background color 205

Common eclipse shortcut keys
Eclipse has powerful editing functions, master the eclipse shortcut key function, and greatly improve development efficiency. Eclipse has the following shortcut keys related to editing.
1. [Alt + /]
This shortcut key is a good helper for users to edit and can help users with content. Do not worry about incomplete methods and attribute names. When you do not remember the names of classes, methods, and attributes, experience the benefits of the [Alt +/] shortcut key.
2. [Ctrl + O]
Display the class method and attribute outline, and quickly locate class methods and attributes, which are useful in searching for bugs.
3. [Ctrl + /]
Quickly add comments to quickly add comments or cancel comments for the row where the cursor is located or the row selected. You may always need to comment something or cancel comments during debugging. Now, duplicate comments are not required for each line.

4. [Ctrl + D]
Delete the current row, which is one of my favorites. You do not have to press the delete key multiple times to delete a row.
5. [Ctrl + M]
The window is maximized and restored. When you operate in the window, you will always feel that the current window is small (especially when writing code). Now, try the CTRL + M shortcut.
View and locate shortcuts
In the program, it is not easy to quickly locate the location of the code and quickly locate the bug. Eclipse provides powerful search functions, you can use the following shortcut keys to search for and locate data.
1. [Ctrl + k] and [Ctrl + + Shift + k]
You can quickly search for the selected content down and up. You no longer need to click the Search dialog box.
2. [Ctrl + Shift + T]
You can find the Java class files in the workspace build path. Do not try to find the classes. You can also use "*" and "?" .
3. [Ctrl + Shift + R]
Corresponds to Ctrl + Shift + T. You can also use wildcards to find all files (including java files) in a workspace.
4. [Ctrl + Shift + G]
Search for reference of classes, methods, and properties. This is a very practical shortcut. For example, to modify the code that references a method, you can use the [Ctrl + Shift + G] shortcut to quickly locate all the positions that reference this method.

5. [Ctrl + Shift + O]
Quickly generate import. If you copy a program from the Internet and do not know how to import the called class, try the [Ctrl + Shift + O] shortcut key, which will surely surprise you.
6. [Ctrl + Shift + F]
Formatting code and writing standardized code are a required course for every programmer, after selection, press the CTRL + Shift + F shortcut to format the Code. If no code is selected, the current file (Java file) is formatted by default ).
7. [Alt + Shift + W]
Find the path in the project where the current file is located, and you can quickly locate the location of the browser view. If you want to find the package where a file is located, this shortcut key is very useful (especially in large projects ).
8. [Ctrl + L]
Locate a line in the current editor, which is also valid for non-java files.
9. [Alt + ↓] and [Alt + →]
The backward and forward history records are very useful in tracking code. You may have found several associated areas, but you may not be clear about them, you can use these two shortcut keys to locate the search sequence.
10. [F3]
Quickly locates a class, method, and attribute at the cursor position.
11. [F4]
Display the inheritance relationship of the class and open the class inheritance view.
Debugging shortcuts
Eclipse has the following shortcut keys related to running debugging.
1. [Ctrl + Shift + B]: Set a breakpoint or cancel a breakpoint in the current row.
2. [F11]: debug the program that was last executed.
3. [Ctrl + F11]: run the program that was last executed.
4. [F5]: trace the method. When the program executes a method, press [F5] to track the method.
5. [F6]: One-step execution program.
6. [F7]: After the method is executed, the last statement that calls this method is returned.
7. [F8]: continue to run until the next breakpoint or program ends.
Common editor shortcuts
Generally, the text editor provides editing-related shortcut keys, which can be used in eclipse to edit text.
1. [Ctrl + C]: Copy.
2. [Ctrl + x]: cut.
3. [Ctrl + V]: paste.
4. CTRL + S: Save the file.
5. [Ctrl + Z]: Undo.
6. [Ctrl + Y]: repeated.
7. [Ctrl + F]: search.
Other shortcuts
There are still many shortcut keys in eclipse that cannot be listed one by one. You can find their usage methods through the help documentation. There are also several common shortcut keys as follows.
1. [Ctrl + F6]: switch to the next editor.
2. [Ctrl + Shift + F6]: switch to the previous editor.
3. [Ctrl + F7]: switch to the next view.
4. [Ctrl + Shift + F7]: switch to the previous view.
5. [Ctrl + F8]: switch to the next perspective.
6. [Ctrl + Shift + F8]: switch to the previous perspective.
There are many shortcut keys in eclipse. You can find all the shortcut keys in the help document, but it is impossible to master the use of all the shortcut keys, and it is not necessary, if you take some time to get familiar with the shortcut keys listed in this section, you will get twice the result with half the effort.

1. Edit-> content assist-> Add Alt +/code Association
2. Window-> next editor-> Add Ctrl + TAB to switch the window
3. Run/debug toggle line breakpoint-> Add Ctrl + 'add or delete breakpoints during debugging
4. Source-> surround with try/Catch Block-> Ctrl + Shift + V add try catch box
5. Source-> Generate getters and setters-> Ctrl + Shift +. added the get set method.

----------- Useful shortcuts -----------
Alt +/code assistant inserts some code (but it is usually in conflict with the input method. You can modify the key of the input method or replace it with ALT +/for the moment)
CTRL + 1: move the cursor over a variable and press Ctrl + 1 to provide a quick refactoring solution. Select several lines and press Ctrl + 1 to put the code into the for, while, if, do, or try code blocks.
Double-click the left brackets (parentheses, braces, and braces) to select all the content in the brackets.
Alt + enter display the properties of the currently selected resource (project, or file)
----------- CTRL series -----------
CTRL + K: move the cursor over the variable. Press Ctrl + k to find the next variable.
CTRL + Shift + K: the opposite direction of Ctrl + k search
CTRL + E: Click it to quickly display the drop-down list of the current editer (if the current page is not displayed, it is displayed in bold)
CTRL + Shift + e display the managers that manage all Opened Views (you can choose to close or activate them)
CTRL + q locate the Last edited location
CTRL + l locate in a line (for those with more than 100 programs, there will be good news)
CTRL + M maximize the current edit or view (then press it, and vice versa)
CTRL +/comment out the current row, and then press it to cancel the comment
CTRL + T quickly display the inheritance structure of the current class
CTRL + shift-T: Open type ). If you are not interested in doing this, forget to open the source tree.
CTRL + O: open a small window similar to the Outline View in the code
CTRL + mouse stop: displays the source code of the class and Method
CTRL + H: Open the search window
CTRL +/(keypad) collapse all code in the current class
CTRL + × (keypad) show all the code in the current class
----------- Ctrl + shift series -----------
CTRL + Shift + F format the current Code
CTRL + Shift + x change all selected text to lowercase
CTRL + Shift + y change all selected text to lowercase
CTRL + Shift + O: Fast Import
CTRL + Shift + R: Open resource open Resource
----------- F shortcut series -----------
F3: open the file that declares the reference.
F4: Open the type hierarchy
F5: One-Step Jump
F6: Skip in one step
F7: One-Step Jump out
F8: continue. If there is no breakpoint at the end, the program will be running
----------- Use --------- for row editing -----------
CTRL + D: Delete the current row
CTRL + ALT + ↓ copy the current row to the next row (copy added)
CTRL + ALT + ↓ copy the current row to the previous row (copy added)
Alt + ↓ interaction position between the current row and the following row (especially practical, you can save cutting and pasting)
Alt + ↑ interaction between the current row and the previous row (same as above)
Shift + enter insert empty rows in the next row of the current row (the mouse can be at any position of the current row, not necessarily the last row)
CTRL + Shift + enter insert blank lines in the current line (same principle)
----------- Not commonly used -----------
Alt + ↓ previous edited page
Alt + → next edited page (of course for the above)
CTRL + Shift + S: Save all
CTRL + W disable the current editer
CTRL + Shift + F4 close all open editer
CTRL + Shift + G: Search for references in Workspace
CTRL + Shift + P locate the matched character (for example, {}) (when positioning from the front, the cursor must be inside the matched character, followed by the front, and vice versa)
----------- Do not understand -----------
CTRL + J forward incremental search (after pressing CTRL + J, each letter editor you enter provides a quick match to locate a word. If not, it is not found in stutes line. It is particularly useful when querying a word. This function was available two years ago)
CTRL + Shift + J reverse incremental search (the same as the previous one, but only from the back to the front) From: http://blog.csdn.net/zhgqiang