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String, StringBuffer, and StringBuilder
...copied, but this means a potentially much larger amount of data may remain allocated).
You use StringBuilder when you need to create a mutable character sequence, usually to concatenate several character sequences together.
You use StringBuffer in the same circumstances you would use StringBuilder, ...
Stop handler.postDelayed()
...ges(null);
Docs
public final void removeCallbacksAndMessages (Object token)
Added in API level 1 Remove any pending posts of callbacks and sent
messages whose obj is token. If token is null, all callbacks and
messages will be removed.
Or you could also do like the following:
Handle...
How do I comment on the Windows command line?
...w that I know about it, "&:: misc comment text". For example:
REM SET Token="4C6F72656D20697073756D20646F6C6F" &REM This token is for localhost
SET Token="722073697420616D65742C20636F6E73" &REM This token is for production
This makes it easy to keep track of multiple sets of values wh...
Detect if Visual C++ Redistributable for Visual Studio 2012 is installed
...le (x64)
Registry Key: HKLM\SOFTWARE\Classes\Installer\Products\1af2a8da7e60d0b429d7e6453b3d0182
Configuration: x64
Version: 6.0.2900.2180
Direct Download URL: https://download.microsoft.com/download/8/B/4/8B42259F-5D70-43F4-AC2E-4B208FD8D66A/vcredist_x64.EXE
Microsoft Visual C++ 2005 Redistribut...
iPhone OS: How do I create an NSDate for a specific date?
...ing code. Thought I'd share:
NSDateComponents *comps = [[NSDateComponents alloc] init];
[comps setDay:10];
[comps setMonth:10];
[comps setYear:2010];
NSDate *date = [[NSCalendar currentCalendar] dateFromComponents:comps];
...
How can I clear or empty a StringBuilder? [duplicate]
...
Two ways that work:
Use stringBuilderObj.setLength(0).
Allocate a new one with new StringBuilder() instead of clearing the buffer.
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std::vector versus std::array in C++
...owing elements behind the scenes).
Since it stores the elements in memory allocated on the heap, it has some overhead in respect to static arrays.
std::array is a template class that encapsulate a statically-sized array, stored inside the object itself, which means that, if you instantiate the cla...
How to check if a user likes my Facebook Page or URL using Facebook's API
...ntents("https://api.facebook.com/method/pages.isFan?format=json&access_token=" . USER_TOKEN . "&page_id=" . FB_FANPAGE_ID);
That will return one of three:
string true string false json
formatted response of error if token
or page_id are not valid
I guess the only not-using-token way to...
Can I mask an input text in a bat file?
...me uncomfortable. Avoid doing that by doing this instead: for /f "usebackq tokens=*" %%p in (``powershell -Command "$pword = read-host 'Enter Password' -AsSecureString ; $BSTR=[System.Runtime.InteropServices.Marshal]::SecureStringToBSTR($pword); [System.Runtime.InteropServices.Marshal]::PtrToStringA...
How to deal with “java.lang.OutOfMemoryError: Java heap space” error?
...ably so that the programmer can't create programs that have runaway memory allocation without running into this problem and having to examine exactly what they are doing).
So this given there are several approaches you could take to either determine what amount of memory you need or to reduce the a...