Is there any way to automatically remove all unused imports (signaled with a warning) of a project with Eclipse IDE?
I just found the way. Right click on the desired package then Source -> Organize Imports.
Shortcut keys:
Windows: Ctrl + Shift + O
Mac: Cmd + Shift + O
You can direct use the shortcut by pressing Ctrl+Shift+O
I know this is a very old thread. I found this way very helpful for me:
Go to Window → Preferences → Java → Editor → Save Actions.
Check the option "Perform the selected actions on save".
Check the option "Organize imports".
Now every time you save your classes, eclipse will take care of removing the unused imports.
Remove all unused import in eclipse:
Right click on the desired package then Source->Organize Imports.
Or
You can direct use the shortcut by pressing Ctrl+Shift+O
Work perfectly.
If you want to do this on whole project then inside project -->select src folder-->press Ctrl+Shift+O
Use ALT + CTRL + O. It will organize all the imports. You can find various other options in the "Code" Menu.
EDIT: Sorry it is CTRL + SHIFT + O
Better way is just to add "save action" so when you save the project it will clear the unused import's and format the code as well if you like .
Go to Window > Preferences > Java > Editor > Save Actions
and pick what ever you want .
press Ctrl+Shift+O and it will remove unwanted imports
Certainly in Eclipse indigo, a yellow line appears under unused imports. If you hover over that, there will be multiple links; one of which will say "Remove unused import". Click that.
If you have multiple unused imports, just hover over one and there will be a link that allows you to remove all unused imports at once. I can't remember the exact wording off hand, but all the links that appear are pretty self explanatory.
Not to reorganize imports (not to unfold .* and not to reorder lines) to have least VCS changeset
you can use custom eclipse clenup as this answer suggests
Related
I was trying to learn all the eclipse shortcuts... I couldn't find anything useful.
There are some shortcuts available for easy ones, like Find, Find in Files, Comment, Uncomment etc.
Is there any way to view all the eclipse shortcuts?
Clicking Ctrl+Shift+L from eclipse, will list all the shortcuts. This is pretty useful, as you don't need to switch to another window... You can do your work without any interruption.. :-)
Open Windows->Preferences->General->Keys. Now you can use the filter to find your shortcut and change its binding.
CTRL + SHIFT + L
Shows you a list of your currently defined shortcut keys.
However this will only show you custom short cuts that user have added therefore, Please find useful eclipse short-cuts below
CTRL + /
In line Comment
CTRL + SHIFT + /
Block Comment
CTRL + D
Delete row. Try it! You no longer need to grab the mouse and select the line, or select Home, Shift + End, Delete. Quick and clean.
ALT + Up/Down Arrow
Move the row (or the entire selection) up or down. Very useful when rearranging code. You can even select more rows and move them all at once. Notice, that it will be always correctly indented.
ALT + Left/Right Arrow
Move to the last location you edited. Imagine you just created a class "Foo", and now you are working on a class "Boo". Now, if you need to look at the "Foo" class, just press Alt+Left Arrow. Alt+Right Arrow brings you back to "Boo".
CTRL+SHIFT+O
Organize imports. What happens when you first use a class you have not yet imported? You will see an error. But when you press this magical combination, all your missing classes will be imported, and the unused imports will vanish.
CTRL+1
Probably the most useful one. It activates the quick fix. Imagine you create a class, which implements some interface. You will get an error, because the inherited methods are not yet implemented. While you are on line where the error occurs, press this combination to activate the quick fix. Now, select the "Add unimplemented methods" option. You can use the quick fix at every error you ever receive.
Quick fix comes in handy in other situations too. My favorite is the "Split variable declaration". Sometimes I need to broaden the scope of a variable. I activate the quick fix, split declaration, and use alt + arrow to put it where it belongs. You can find even more uses: Convert local variable to field, rename in file, inline local variable, etc...
You could use the "Split variable declaration" on the bar variable, and then move it with Alt+Arrows above the try block..
Or you could use the "Add unimplemented methods" fix here.
The best thing you can do if you see an error is to use the quick fix.
CTRL+SHIFT+T
Open Type. Imagine, that you need to have a look at the "Foo" class. But, where is the "Foo" class? Is it in the "Boo" project and in the "foo.bar" package? Or somewhere else? With this shortcut, you don't need to know. Just press it, type "Foo" and you are in.
CTRL+E
Shows you a list of all open editors.
CTRL+F6
Use to move between open editors. This is a slower alternative to Ctrl + E. It comes in handy in a situation when you want to periodically switch between two editors, something that is nearly impossible with Ctrl+E as it sorts entries quite randomly. Or you might just use Alt+Arrows...
CTRL+F7
Move between views. When in the editor, press Ctrl+F7 to switch to the Package Explorer, or hold Ctrl and press F7 multiple times to switch to other views.
CTRL+F8
Move between perspectives. The same as the previous.
CTRL + F11
Runs the application. What gets launched depends on your settings. It will either launch the last launched class (my preferred way) or it will launch the currently selected resource (the default way). If you want to change its behavior read the previous post.
CTL + N
Open new type wizard. This is not very quick because you have to select the wizard type (whether you want to create new class, jsp, xml or something else) in the next step. A much faster way would be if you could just hit the shortcut and invoke the particular wizard. It is possible, just keep reading...
CTRL + M
Maximize or umaximize current tab.
CTRL + I
Corrects indentation.
CTRL + SHIFT + F
Formats code. You can make beautiful looking code out of a mess with this. It requires a bit of setup, but it is well worth it. You can find its settings under Window->Preferences->Java->Code style->Formatter
CTRL + J
Incremental search. Similar to the search in firefox, it shows you results as you type. Don't be surprised if when you hit this combination nothing happens - at the first glance. Just start typing and eclipse will move your cursor to the first occurence.
CTRL+SHIFT+G
Bind this to "Generate getters and setters". This is a "must have".
ALT+C
Bind this to SVN/CVS "Commit".
ALT+U
Bind this to SVN/CVS "Update".
yes, you can go Window - Preferencee - General - Keys and see all available shortcuts. Also you can reorder keys here.
Also you can read more about eclipse shortcuts here
As was asked previously, Eclipse has the nice "mark occurences" feature, which shows all occurences of the selected variable or method.
But I don't know any shortcut for jumping to the next/previous occurence in the editor.
The shortcut ctrl+k is not working, it solely works in conjunction with "incremental find" (ctrl+j).
I'm using Eclipse Indigo. Is there any shortcut or other solution?
Edit:
The answers and comments in the question linked above are now pretty exhaustive, I think.
It seems there is no all-in-one solution (at least for Java code editing):
I cant get Ctrl + (period) to work, at least in Java code where it finds the next problem. Even rebinding this to a different shortcut does not work.
Ctrl + K does text-based search only. If you want to find all occurrences of the variable i, it finds any letter i within any identifier and comment.
Renaming mode using Alt+Shift+R and then navigating through the occurrences using Tab and Shift+Tab comes close, but only works for identifiers you can actually rename for that source file. It does not work for library code (esp. JDK) for which no editable source is available.
Try Ctrl + , and Ctrl + .
Before that make sure you have checked Occurences in the small navigation dropdown:
You can change the key from Window -> Preferences -> keys:
It works for me.
You can find if your key bindings have changed by looking under Window -> Preferences -> General -> Keys and look for the command Find Next. You will see the binding in the column Binding and can also check if it's conflicting with something else in the list titled Conflicts: at bottom right corner of the dialog.
My coworker keeps insisting that I make the switch from IntelliJ to Eclipse. I'm considering relenting, mainly because the compile/deploy time it takes for my Android project seems to be considerably less in Eclipse than IntelliJ (I imagine Eclipse does some sort of incremental compilation, etc. that IntelliJ can't do for Android).
However, there are a few shortcuts that I feel are essential and I don't want to do without, and I'm wondering if anyone knows of a way to do them in Eclipse (perhaps add via a plugin?):
Ctrl-W (select word, and then expands selection to include statement,
block, method, class... this should work in XML and other types of code as well)
Ctrl-D (duplicate selection, if selection, or otherwise line)
Ctrl-Shift-V, paste from history (pops up a list of recently copied text)
Go to Symbol (searches through all methods, fields, etc in your project)
I'm sure there are a bunch of others I'll really miss, but these are the main ones I use all the time.
about the go to symbol thing
there are the following functionalities available
ctrl + shift + r - open resource
ctrl + shift + t - open type
ctrl + alt + g - find the selected text in workspace
ctrl + shift + g - find references in workplace (as selected by caret)
ctrl + o - quick outline, all methods in class
there is also a plugin calld instaSearch that you can easily install, it offers a complete project active search.
I believe IntelliJ is a much better IDEA, but you asked..
ctrl+w
Alt Shift Up Expand selection to enclosing element
ctrl+d
Ctrl Alt Arrow Duplicate line(s) up or down
ctrl+shift+v
Not that I have seen
ctrl+shift+a
No, and that is a truly amazing feature.
Does Eclipse have a way to search a whole project for some text like Xcode's "find in project" feature?
1. Ctrl + H
2. Choose File Search for plain text search in workspace/selected projects
For specific expression searches, choose the relevant tab (such as Java Search which allows you to search for specific identifiers)
For whole project search:
3. Scope (in the form section) > Enclosing project (Radio button selection).
Ctrl + Alt + G can be used to find selected text across a workspace in eclipse.
OSX: ⌥ Option + ⌘ Command + G
Press Ctrl + H to bring up the search that includes options to search via project, directory, etc.
Ctrl+H.
Also,
Open any file quickly without browsing for it in the Package
Explorer: Ctrl + Shift + R.
Open a type (e.g.: a class, an interface) without clicking through
interminable list of packages: Ctrl + Shift + T.
Go directly to a member (method, variable) of a huge class file,
especially when a lot of methods are named similarly: Ctrl + O
Go to line number N in the source file: Ctrl + L, enter line number.
Ctrl + H is the best way!
Remember to copy the string before you start searching!
You should check out the new Eclipse 2019-09 4.13 Quick Search feature
The new Quick Search dialog provides a convenient, simple and fast way to run a textual search across your workspace and jump to matches in your code.
The dialog provides a quick overview showing matching lines of text at a glance.
It updates as quickly as you can type and allows for quick navigation using only the keyboard.
A typical workflow starts by pressing the keyboard shortcut Ctrl+Alt+Shift+L
(or Cmd+Alt+Shift+L on Mac).
Typing a few letters updates the search result as you type.
Use Up-Down arrow keys to select a match, then hit Enter to open it in an editor.
CTRL + H is actually the right answer, but the scope in which it was pressed is actually pretty important.
When you have last clicked on file you're working on, you'll get a different search window - Java Search:
Whereas when you select directory on Package Explorer and then press Ctrl + H (or choose Search -> File.. from main menu), you get the desired window - File Search:
yes, but you need to open the global search panel. to do so, press the binoculars icon on the top right corner of the IDE.
you can even filter searches by function identifiers, method scopes an etc...
Choose File Search for plain text search in workspace/selected projects
For specific expression searches, choose the relevant tab (such as Java Search which allows to search for specific identifiers)
First customize your search dialog. Ctrl+H. Click on the Customize button and select inly File Search while deselecting all the others. Close the dialog.
Now you can search by selecting the word and hitting the Ctrl+H and then Enter.
yes, but you need to open the global search panel.
to do so, press the binoculars icon on the top right corner of the IDE.
you can even filter searches by function identifiers, method scopes an etc...
There is no way to do pure text search in whole work workspace/project via a shortcut that I know of (and it is a PITA), but this will find references in the workspace:
Put your cursor on what you want to lookup
Press Ctrl + Shift + g
There is very nice tool "Eclipse Quicksearch" available. Checkout SpringSource Update Site for Eclipse i.e: http://dist.springsource.com/release/TOOLS/update/e4.6/ (you can try other versions replacing last part of URL with i.e. e4.4 or e4.5)
It works well with Neon Release (4.6.0). It gives you nice incremental text search with source file preview. I had no issues with it so far.
Usage:
Alt + s "Quick Search Command" opens "Quick Text Search" dialog. You can select whether search should be case sensitive or not. Really good tool.
Ctrl+H is very handy here. I mostly search in the current project, not the whole workspace. To find all occurences in the whole project of a string that is in your current buffer, just select the string press Ctrl+H and hit enter. Easy as that!
Use Resource Filters!
Eclipse will restrict the search result using the Resource Filters defined for your project (eg. right click on you project name and select Properties -> Resource -> Resource Filters). So if you keep getting search hits from parts of your project that your not interested in you could make Eclipse skip those by adding a Resource Filter for them. This is especially useful if you have build files or logs or other temporary files that are part of your projects directory structure, but you only want to search amongst the source code. You should also be aware of that files/directories matched for exclusion in the Resource Filters will not show up in the Package Explorer either, so you might not always want this.
Search and Replace'
Ctrl + F Open find and replace dialog
Ctrl + F / Ctrl + Shift + K Find previous / find next occurrence of search term (close find window first).
Ctrl + H Search Workspace (Java Search, Task Search, and File Search).
Ctrl + J / Ctrl+Shift +J Incremental search forward / backwards.
Type search term after pressing Ctrl+J, there is now search window
Ctrl+shift+O Open a resource search dialog to find any class
What others have forgotten is Ctrl+Shift+L for easy text search. It searches everywhere and it is fast and efficient. This might be a Sprint tool suit which is an extension of eclipse (and it might be available in newer versions)
Eclipse has that "+/-" on the left to expand and collapse blocks of code.
I've got tens of thousands of lines to go through and would really like to just collapse everything, and selectively expand blocks to look at them.
There is a hotkey, mapped by default to Ctrl+Shift+NUM_KEYPAD_DIVIDE.
You can change it to something else via Window -> Preferences, search for "Keys", then for "Collapse All".
To open all code blocks the shortcut is Ctrl+Shift+NUM_KEYPAD_MULTIPLY.
In the Eclipse extension PyDev, close all code blocks is
Ctrl + 9
To open all blocks, is Ctrl + 0
In addition to the hotkey, if you right click in the gutter where you see the +/-, there is a context menu item 'Folding.' Opening the submenu associated with this, you can see a 'Collapse All' item. this will also do what you wish.
A "Collapse All" command exists in recent builds (e.g. 3.2 M6) and is bound to Ctrl+Shift+NUM_KEYPAD_DIVIDE by default.
You can also configure it in Preferences->Editor->Keys.
The question is a bit old, but let me add a different approach. In addition to the above hot-key approaches, there are default preference settings that can be toggled.
As of Eclipse Galileo (and definitely in my Eclipse Version: Indigo Service Release 2 Build id: 20120216-1857) language specific preferences can open up new files to edit which are already collapsed or expanded.
Here is a link to Eclipse Galileo online docs showing the feature for C/C++: http://help.eclipse.org/galileo/index.jsp?topic=/org.eclipse.cdt.doc.user/reference/cdt_u_c_editor_folding.htm .
In my Eclipse Indigo I can open the Folding Preferences window via : menu/ Window/ Preferences/ Java/ Editor/ Folding and set all options on so I can open files by default that are completely collapsed.
If you always want the code collapsed by default, go to Windows > Preferences. Search for "folding". Then check all the items under "Initially fold these elements".
Right click on the +/- sign and click collapse all or expand all.
Ctrl+Shift+/ and Ctrl+Shift+* works great for Aptana Studio 3.
Apart from that you can always use Window > Preferences > Editors > Foldings to enable it
Just to sum up:
anycode:
ctrl + shift + NUMPAD_divide = collapse all
NUMPAD_multiply = exand all
pydev:
-ctrl + 0 = collapse all
-ctrl + 9 = exand all
Right click on the circles +/- sign and under Foldings select Collapse All
If you are using PyDev in Eclipse, its Ctrl0 and Ctrl9 for collapse all and uncollapse all respectively. Ctrl- and Ctrl= to collapse individual methods when your cursor is on the line of the method declaration.
I had the same problem and found out Folding can be enabled or disabled, and in my case got disabled somehow.
To solve it, simply right click on the line numbers/breakpoint section (vertical bar in the left of the editor), then under the 'Folding' section chose 'Enable folding'.
ctrlshift/ should be working fine after.
Shortcuts that worked for me in Versions Oxygen.2 Release (PHP/WINDOWS 7) were
Collapse all code blocks: CTRL + SHIFT + NUMPAD_DIVIDE
Expand all code blocks : CTRL + NUMPAD_MULTIPLY
I noticed few things:
Ctrl+/ toggles Folding-enabled or -disabled.
It is Ctrl+* that expands. Ctrl+Shift+* collapses just like Ctrl+Shift+/
In case you don't have a separate numpad, you can activate the overlapping numpad using the number lock- this varies with the type of keypad-> fn + numlk for hp
then try ctrl + shift + numpad_Divide
should work fine
Collapse all : CTRL + SHIFT + /
Expand all code blocks : CTRL + *
i was using lapop numpad was orange color which will get enable using function (Fn) button ...so try
shift + crtl + fn + (see where is divide)
in my case its on 0