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How to see JavaDoc in IntelliJ IDEA? [duplicate]
...oup. You will not find this setting in one of the its entries. You have to select the Editor “group” itself and it will show a settings page on the right where the option is.
– Matthias Ronge
Feb 16 '15 at 8:30
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Which annotation should I use: @IdClass or @EmbeddedId
...and @EmbeddedId is when it comes to write HQL :
With @IdClass you write:
select e.name from Employee e
and with @EmbeddedId you have to write:
select e.employeeId.name from Employee e
You have to write more text for the same query. Some may argue that this differs from a more natural language l...
Disabling highlighting of current line in the Visual Studio editor
... in Fonts and Colors dialog controls the background color of the currently selected line in the editor?
6 Answers
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Lock, mutex, semaphore… what's the difference?
... just one active thread from many others within one process. The other non selected threads (@ acquiring this object) are put to sleep.
[No interprocess capability, very primitive object].
2) Mutex Semaphore (aka Mutex)= Kernel object used for allowing the execution of just one active thread from ...
jQuery access input hidden value
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There's a jQuery selector for that:
// Get all form fields that are hidden
var hidden_fields = $( this ).find( 'input:hidden' );
// Filter those which have a specific type
hidden_fields.attr( 'text' );
Will give you all hidden input field...
Set transparent background using ImageMagick and commandline prompt
...background color. I just flood fill the background with transparency, then select the alpha channel and blur it and remove half of the blurred area using -level 50x100%. Then turn back on all the channels and flatten it against the brown color. The -blur 0x1 -level 50x100% acts to antialias the bou...
Xcode 5: Code signing entitlement errors
... This worked for me too. I am using Xcode 6.3. I was unable to select apple dev account for code signing. Totally unrelated error message was displayed everytime "ios app id 'xxxxxxxxx' does not support changes to the maps feature". A simple xcode restart fixed it for me.
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How to comment a block in Eclipse?
...Ctrl+Shift+c
Uncomment: Ctrl+Shift+c
For Multiple Lines (Toggle Effect)
(Select the lines you want to comment)
comment : Ctrl+Shift+c
Uncomment: Ctrl+Shift+c
It is for all html , css , jsp , java .
It gives toggle effect.
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SET NAMES utf8 in MySQL?
... client, thus is also needed when receiving this data, using for example a SELECT statement.
– Leopoldo Sanczyk
Nov 20 '15 at 20:54
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Android Studio suddenly cannot resolve symbols
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1.) Choose File option from menu on left top side of android studio.
2.) Select the option : "Invalidate Cache/ Restart.." It will open an dialog.
3.) Click on the first button with option : "Invalidate and Restart"
4.) It will close the studio and restart it. Start indexing of the project.
It...