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What is the best way to implement constants in Java? [closed]
...tic final TYPE NAME = VALUE;
where TYPE is the type, NAME is the name in all caps with underscores for spaces, and VALUE is the constant value;
I highly recommend NOT putting your constants in their own classes or interfaces.
As a side note: Variables that are declared final and are mutable ca...
Is there any difference between a GUID and a UUID?
...122) look similar and serve similar purposes, there are subtle-but-occasionally-important differences. Specifically, some Microsoft GUID docs allow GUIDs to contain any hex digit in any position, while RFC4122 requires certain values for the version and variant fields. Also, [per that same link], ...
Can you get the column names from a SqlDataReader?
After connecting to the database, can I get the name of all the columns that were returned in my SqlDataReader ?
9 Answers...
Private virtual method in C++
...d, without further exposing the virtual functions directly by making them callable by derived classes (as would be possible if the functions were just protected). The point is that virtual functions exist to allow customization; unless they also need to be invoked directly from within derived classe...
Store boolean value in SQLite
...
@joce Actually, integers 0 and 1 (as well as NULL) are encoded directly in row data type declaration. So it's zero bytes per boolean, if you only count the actual data storage, which is awesome. If you count per-column-per-row bookkeep...
Making an iframe responsive
...
This technique will work for all iframes, the trick is, the content in the iframe will need to be responsive as well, more on this here: benmarshall.me/responsive-iframes
– Ben Marshall
Aug 17 '18 at 16:53
...
Javascript calculate the day of the year (1 - 366)
...
This works across Daylight Savings Time changes in all countries (the "noon" one above doesn't work in Australia):
Date.prototype.isLeapYear = function() {
var year = this.getFullYear();
if((year & 3) != 0) return false;
return ((year % 100) != 0 || (year % 4...
Is there a way to check if int is legal enum in C#?
...ple
{
public static void Main()
{
object value;
// Call IsDefined with underlying integral value of member.
value = 1;
Console.WriteLine("{0}: {1}", value, Enum.IsDefined(typeof(PetType), value));
// Call IsDefined with invalid underlying integral value.
...
Non greedy (reluctant) regex matching in sed?
... For doing it in place use options -pi -e.
– reallynice
Dec 10 '13 at 17:27
13
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How can I remove a specific item from an array?
... first match of 5 from [2,5,9,1,5,8,5]), while the second function removes all occurrences:
function removeItemOnce(arr, value) {
var index = arr.indexOf(value);
if (index > -1) {
arr.splice(index, 1);
}
return arr;
}
function removeItemAll(arr, value) {
var i = 0;
...