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What does “@private” mean in Objective-C?
...it means that instance variables declared as @private can only be accessed by instances of the same class. Private members cannot be accessed by subclasses or other classes.
For example:
@interface MyClass : NSObject
{
@private
int someVar; // Can only be accessed by instances of MyClass
...
Spring @Transaction method call by the method within the same class, does not work?
...ce instance is directly invoked on that instance and cannot be intercepted by the wrapping proxy (the proxy is not even aware of any such call). One solutions is already mentioned. Another nifty one would be to simply have Spring inject an instance of the service into the service itself, and call yo...
Prevent users from submitting a form by hitting Enter
...is method is unideal because it prevents the user from submitting the form by pressing enter while focused on the submit button. The best solution would be that of BalusC below, where enter is interrupted only while still focused on the form inputs.
– Anson Kao
...
Installing PDO driver on MySQL Linux server
... okay, i looked up in my php.ini file and it looks like pdo in enabled by default, i still need to know if i can use both pdo and mysql_*handlers...
– Yuri Scarbaci
Nov 14 '12 at 8:18
...
How can I make an “are you sure” prompt in a Windows batchfile?
...ndows NT versions with enabled command extensions and
choice.exe available by default on Windows Vista and later Windows versions for PC users and on Windows Server 2003 and later server versions of Windows.
set is an internal command of Windows command processor cmd.exe. The option /P to prompt a...
Left Align Cells in UICollectionView
...r solutions in this thread do not work properly, when the line is composed by only 1 item or are over complicated.
Based on the example given by Ryan, I changed the code to detect a new line by inspecting the Y position of the new element. Very simple and quick in performance.
Swift:
class Left...
ROW_NUMBER() in MySQL
...num+1 AS row_number, t.id FROM (SELECT * FROM table1 WHERE col = 264 ORDER BY id) t, (SELECT @row_num:=0) var;
– jberryman
Apr 26 '17 at 16:33
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“You have mail” message in terminal, os X [closed]
...bash) was then notifying me that "You have mail".
You can access the mail by simply using the command
mail
This launches you into Mail, and it will right away show you a list of messages that are stored there. If you want to see the content of the first message, use
t
This will show you the ...
Why does an overridden function in the derived class hide other overloads of the base class?
...
Judging by the wording of your question (you used the word "hide"), you already know what is going on here. The phenomenon is called "name hiding". For some reason, every time someone asks a question about why name hiding happens, pe...
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
... implementations of C++
ignore integer overflows. Treatment of division by zero, forming a remainder using a zero divisor, and all
floating point exceptions vary among machines, and is usually adjustable by a library function. —end note ]
Your code compiled with g++ -O3 emits warning (even...