When, for instance declaring a new integer variable in java let's say int number=7; if I write in Eclipse a., it does not appear on the right all the possible attributes that could be used, as it should do. I have tryed installing a new version of Eclise but it does not make any difference. Does anyone know how to fix this?
PS: I tried to look in google for an image of the event i'm talking about and is similar to the one provided bellow but in my case for java programming.
If i understood you well, here is the solution for autocompletion:
Window -> Preferences -> Java -> Editor -> Content Assist -> Advanced
You click restore default and that should be it.
Related
I have seen people on YouTube programming Java with the Eclipse editor, and they have a pop up that tells them all acceptable ways to finish your function.
i.e. if you type System.out., it will show a list of every possible thing you could write after System.out, such as print, println, etc.
Please tell me how to enable this feature.
Its in the option its called auto completion/content assist.
menu -> Preferences -> Java -> Editor -> Content assist
also try using ctrl+space to complete when typing
I use Eclipse for Java development. I like the auto-activation feature because I can add all the letters and numbers so I can see class members while I'm typing; making it behave similarly to Visual Studio. If I don't add all of the letters and numbers to the auto-activation list, it will only pop up with class information when I'm typing the first letter after the '.' delimiter, and then it disappears.
The real problem arises when I'm typing in a variable name or something else. As soon as I hit space, the auto-complete types a bunch of crap following what I've typed in attempt to complete it. It's driving me crazy!
Any way to turn this off?
The checkbox you have to check is: "Disable insertion triggers exept 'Enter' "
(under Java -> Editor -> Content assist)
I'm on Eclipse 2018-12 and C_H's answer had no effect on the behavior:
I believe what you'll want is to deactivate "Insert single proposals automatically"
EDIT: It seems this answer is now outdated. It may work for old Eclipse versions. For any more recent versions refer to #ChrisP's answer from 2019.
Open menu Window, then Preferences. Follow path Java -> Editor -> Content assist. Now mess around with the settings to find your ideal setup. I believe what you'll want is to deactivate Insert single proposals automatically.
If anyone wants to know how to stop the auto-complete for brackets:
Toggle off: "Edit --> Smart Insert Mode"
Version: Eclipse Photon
In continuation to #G_H's answer :
This worked for me although I am sure there is another and a better way.
Window -> Preferences -> Java -> Editor -> Content Assist -> Set Auto Activation Delay(ms) : 200ms from 0ms in my case.
You may want to increase/decrease the value 200 depending on your typing speed.
The reason this worked is because of the hitting of "Spacebar" before the delay arrives.
I want Eclipse to automatically suggest to me all possible options, while I'm writing some variable/class name or keyword, like in Flash Develop or Visual Studio.
Is it possible?
If not, with which Java IDE can I get this?
I'm specifically asking about a way to automatically get the same thing I get using CTRL + Space, while I'm typing.
You can also set auto completion to open automatically while typing.
Go to Preferences > Java > Editor > Content Assist and write .abcdefghijklmnopqrstuvwxyz in the Auto activation triggers for Java field.
See this question for more details.
Use the Ctrl+Space shortcut for getting all possible autocomplete options available in a particular context in the editor.
Auto Complete will also allow you to insert custom code templates into the editor, with placeholders for various inputs. For instance, attempting to auto complete the word "test" in a Java editor, in the context of a class body, will allow you to create a unit test that uses JUnit; you'll have to code the body of the method though. Some code templates like the former, come out of the box.
Configuration options of interest
Auto-activation delay. If the list of auto complete options is taking too long to appear, the delay can be reduced from Windows -> Preferences -> Java -> Editor -> Content Assist -> Auto Activation delay (specify the reduced delay here).
Auto activation trigger for Java. Accessible in the same pane, this happens to be the . character by default. When you have just keyed in typeA. and you expect to see relevant members that can be accessed, the auto completion list will automatically popup with the appropriate members, on this trigger.
Proposal types. If you do not want to see proposals of a particular variety, you can disable them from Windows -> Preferences -> Java -> Editor -> Content Assist -> Advanced. I typically switch off proposals of most kinds except Java and Template proposals. Hitting Ctrl+Space multiple times will cycle you through proposals of various kinds.
Template Proposals. These are different from your run of the mill proposals. You could add your code templates in here; it can be accessed from Windows -> Preferences -> Java -> Editor -> Templates. Configuration of existing templates is allowed and so is addition of new ones. Reserve usage however for the tedious typing tasks that do not have a template yet.
Go to Windows--> Preference--->Java--->content assist--->Enable auto activation---(insert ._#abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ in auto activation triggers for java)
CTRL+Space
Window -> Preferences -> Java -> Editor -> content assist > enter
".abcdefghijklmnopqrstuvwxyz"
in the Auto activation triggers.
It will allow you to complete your code.
Yes. If the suggestion doesn't compare automatically, then press crtl + space button.
Since you asked about other Java IDE, I suggest IntelliJ by JetBrains.
Just look at it: not only does it support auto completion as you type, but also it support import package once you select the auto completion.
Before someone said "Eclipse is free", note that IntelliJ has free community edition as well: www.jetbrains.com/idea/download/
Its simple, these are the steps:
first go to the following settings
Window -> Preferences -> Java -> Editor -> content assist -> advanced
there will be two boxes having checkboxes
check everything in there and click apply
now of course when you'll be coding there will be auto code completion feature automatically
See if your settings are correct also:
Window -> Preferences -> Java -> Editor -> content assist. See if the "completion inserts" is checked off along with anything else there you want to help auto complete.
Pressing Ctrl+Space opens up the auto-completion dialog in Eclipse. In the Java Perspective it opens automatically after you typed a . (normally with a short delay).
Now in eclipse Neon this feature is present. No need of any special settings or configuation .On Ctrl+Space the code suggestion is available
I had a similar issue when I switched from IntellijIDEA to Eclipse. It can be done in the following steps.
Go to Window > Preferences > Java > Editor > Content Assist and type ._abcdefghijklmnopqrstuvwxyzS in the Auto activation triggers for Java field
Steps:
In Eclipse, open the code auto completion box from first letter
Go to >> Window >> preference >> [ Java c++ php ... ] >> Editor >> Auto activation triggers for...
Add the character SPACE by just putting your cursor inside and box and push the space key..
All the commands and variables which begin with that letter are now going to appear
Go to Window > Preferences > Java > Editor > Content Assist and write .abcdefghijklmnopqrstuvwxyz in the Auto activation triggers for Java field.
I was curious if anyone knows a way (by using a setting or a plugin or something), that would allow me to select variable names on the fly in netbeans, in the same way that Visual Studio 2008 does using an automatic popup window? At the moment I can access them by pressing Ctrl + Space, but I wondered if there is a way that I could avoid this and just have them come up automatically as I type, and the methods would come up with the '.' operator as normal?
The settings in 'Tools->Options->Editor->Code Completion' doesn't seem to have the Ctrl + Space setting I'm looking for, only a tickbox for toggling the normal '.' code completion of method names on or off..
(if it helps, the version of Netbeans is 6.9.1, and I'm writing in Java for Glassfish)
I tried to get the desired feature by adding the alphabet to the completion selectors. It worked somewhat, you can always try it.
Goto:
Tools -> Options -> Editor -> Code Completion
Select
Language: [Java]
Check:
[X] Auto Popup on Typing Any Java Identifier Part
Completion Selectors for Java:
[.,;:([+-=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVXYZ]
Good Luck!
This looks like it was a commonly requested feature for NetBeans, added back in 2009. The setting appears to be Tools -> Options -> Editor -> Code Completion -> Auto Popup Completion Window in those builds (discussion; see also).
The feature you're asking about from Visual Studio is IntelliSense, by the way. If you're looking for a terrific, IntelliSense-drive IDE for Java, you might want to consider IntelliJ.
In NetBeans preferences, choose the code completion; then chose Java instead of all languages; and then choose all the options. You will get it. Goodluck.
Yes, I got it.
Tools > Option > Editor > Code Compilation > Language > Java
That's so easy in NetBeans.
Invoke Code Completion
Inside NetBeans editor simply press Ctrl+spacebar
it will give suggestions for variables, methods, etc
I tried to get the desired feature by adding the alphabet to the completion selectors. It worked somewhat, you can always try it.
This works for the first two characters you type This is updated one
Goto:
Tools -> Options -> Editor -> Code Completion
Select
Language: [C/C++]
Autopop Triggers for C/C++ Identifiers
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Good Luck!
I have been wracking my brain trying to figure this out. For the first time I used jEdit the other day and I was pleasantly surprised that it auto indented my code (meaning that I'd put in the following code:
int method () {
_ //<-- and it put me here automatically
I've tried to get the same thing working with eclipse but with no success. I got into the code formatter but I don't see how to make that happen.
Is it possible to do this? Also while I'm here, is there a such thing as a eclipse plugin that will allow you to search the methods and classes of the standard java library?
Thanks
Personally all I use for this is the format options Window->preferences under Java->Code Style ->Formatter.
I once took the time to tweek how I like my code to look like when I work and exported the whole thing. After that I just code without too much bother on what it looks like. When I find the code looks messy by pressing the combination ctrl+shift+f and the whole class becomes pretty again, comments and all.
After a while it pretty much became a reflex...
code code code
ctrl-s, ctrl-b (cause I disable auto build sometimes), ctrl-shift-f
code some more etc...
Once I got used to this I never really cared how it presented the code as i was typing because I knew it would look all pretty as soon as the loop/if/switch/method etc is finished
My clean eclipse install does this by default.
Have you changed any options? Make sure the file you are editing has the .java file extension. The preference options that control the typing automations are under Java -> Editor -> Typing in the Window -> Preferences menu.
Also, I find that the auto-indenting, and most of the other auto-complete functions of eclipse do not function well if the file I am editing has errors in it which prevent compilation. Make sure that your curly-braces are matched correctly, this is the main one that I've noticed blocks auto-indent.
Regarding searching through the standard Java libraries, use the Search -> Java.. menu option, and check the JRE libraries checkbox, then search away. You can also use the Hierarchy view to see how the classes relate. Also, in the Package and Project views you can expand the JRE System Library, and then expand rt.jar which holds pretty much all the standard Java pacakges.
Eclipse has always done this for me by default.
One really cool thing about eclipse is that you can search preference pages. Just right click and go to prefrences. Go to the "Window" menu, and click "Prefrences". Then at the top of the tree view there's a text box that says "type filter text". Replace that with "indent" and it should bring up the page where the indent option is.
Make sure that eclipse recognizes your file as a java file, that you're using the Java distribution, the latest version, etc.
Iv been trying to work around the eclipse indenting and other supposed features for years, and it seems that the bottom line is this ...
It only works for the programming style of the authors, so to use it you need to modify your style to comply.
This would be OK except that the authors of eclipse have some very strange ideas about common shortcut keys.
One horrid example is the search features, eg when did Ctrl+K become "Find Next occurrence" and why doesnt F3 or n work?
That all being said I use eclipse because if you have the time to wait around while it starts up - or never close it - and you can modify everything youve learned about using an editor - why why why - then it will certainly increase your efficiency.
Please note that there is a preference setting for indenting, it can be set for a project, a workspace, or globally, but no matter how you set it eclipse will still chuck tab characters in where you dont want them.
In fact its indent crazy, like it wants to indent everything, even if its already indented.
Like I said Iv been using it for years and it STILL drives me nuts with its random behavior.
Follow these steps for Eclipse:
Select all text: ctrl+A
Correct indentation: ctrl+I
You should check:
Hidden features/tricks for Eclipse?
What is your favorite hot-key in Eclipse?