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Extract digits from a string in Java
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553
You can use regex and delete non-digits.
str = str.replaceAll("\\D+","");
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How to change the color of a CheckBox?
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23 Answers
23
Active
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What is the best open-source java charting library? (other than jfreechart) [closed]
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edited Oct 9 '17 at 15:39
community wiki
3 r...
try/catch versus throws Exception
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edited Jan 21 '12 at 12:35
eggonlegs
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answered ...
When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
... 4 bytes of that (0xEDEDEDED) would give an inaccessible address under 3gb.
*/
static unsigned char _bNoMansLandFill = 0xFD; /* fill no-man's land with this */
static unsigned char _bAlignLandFill = 0xED; /* fill no-man's land for aligned routines */
static unsigned char _bDeadLandFill ...
Socket.IO Authentication
...key', <%= rediskey %>); //http://msdn.microsoft.com/en-us/library/ms533693(v=vs.85).aspx
//then when socket is connected, fetch the rediskey from the document.cookie and send it back to server
var socket = new io.Socket();
socket.on('connect', function() {
var rediskey = GetCookie('rediske...
How to get the number of Characters in a String?
...by just type casting.
len([]rune("世界")) will print 2. At leats in Go 1.3.
And with CL 108985 (May 2018, for Go 1.11), len([]rune(string)) is now optimized. (Fixes issue 24923)
The compiler detects len([]rune(string)) pattern automatically, and replaces it with for r := range s call.
Adds a new...
How do I find which program is using port 80 in Windows? [duplicate]
...utput for your program.
BTW, Skype by default tries to use ports 80 and 443 for incoming connections.
You can also run netstat -anb >%USERPROFILE%\ports.txt followed by start %USERPROFILE%\ports.txt to open the port and process list in a text editor, where you can search for the information you...
Call an activity method from a fragment
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838
From fragment to activty:
((YourActivityClassName)getActivity()).yourPublicMethod();
From ac...