Auto code completion on Eclipse

Question

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

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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

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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

User · Answer

CTRL Space

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Now in eclipse Neon this feature is present  No need of any special settings or configuation  On Ctrl Space the code suggestion is available

User · Answer

Yes  If the suggestion doesn t compare automatically  then press crtl   space button

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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

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Go to Windows--  Preference--- Java--- content assist--- Enable auto activation--- insert    abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ in auto activation triggers for java

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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

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Window -  Preferences -  Java -  Editor -  content assist   enter        abcdefghijklmnopqrstuvwxyz    in the Auto activation triggers   It will allow you to complete your code

User · Answer

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

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Its simple these are the steps  1  first go to the following settings    Window -  Preferences -  Java -  Editor -  content assist -  advanced 2  there will be two boxes having checkboxes  3  check everthing in there and click apply  4  now ofcourse when you ll be coding there will be auto code completion feature automatically

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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

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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

[java] Auto code completion on Eclipse

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