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Purpose of memory alignment
...m from 0x0004 and shift left 1 byte to place it in a 16-bit register; some extra work, but most can handle that in one cycle.
When you ask for 32 bits from 0x0001 you'll get a 2X amplification. The processor will read from 0x0000 into the result register and shift left 1 byte, then read again from ...
Regex match everything after question mark?
...entheses are a capturing group that you can use to extract the part of the string you are interested in.
If the string can contain new lines you may have to use the "dot all" modifier to allow the dot to match the new line character. Whether or not you have to do this, and how to do this, depends o...
When should I use File.separator and when File.pathSeparator?
In the File class there are two strings, separator and pathSeparator .
3 Answers
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How to check edittext's text is email address or not?
...an true for valid false for invalid
*/
public static boolean isEmailValid(String email) {
String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";
Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(email);
return matcher.m...
Bash variable scope
...
Because you're piping into the while loop, a sub-shell is created to run the while loop.
Now this child process has its own copy of the environment and can't pass any
variables back to its parent (as in any unix process).
Therefore you'll ...
How to remove line breaks from a file in Java?
How can I replace all line breaks from a string in Java in such a way that will work on Windows and Linux (ie no OS specific problems of carriage return/line feed/new line etc.)?
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Implicit type conversion rules in C++ operators
...re promoted to int
Note. The minimum size of operations is int. So short/char are promoted to int before the operation is done.
In all your expressions the int is promoted to a float before the operation is performed. The result of the operation is a float.
int + float => float + float = flo...
Convert hyphens to camel case (camelCase)
...
Try this:
var camelCased = myString.replace(/-([a-z])/g, function (g) { return g[1].toUpperCase(); });
The regular expression will match the -i in marker-image and capture only the i. This is then uppercased in the callback function and replaced.
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Where can I get Google developer key
...the first option - JS should use the second) :
Key for server apps (with IP locking)
Key for browser apps (with referers)
In the new cloud console layout :
Select your project
Choose menu item "APIs & auth"
Choose menu item "Registered app"
Register an app of type "web application"
Choose...
How to convert an Int to a String of a given length with leading zeros to align?
How can I convert an Int to a 7-character long String , so that 123 is turned into "0000123" ?
7 Answers
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