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Design Patterns: Factory vs Factory method vs Abstract Factory
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...then you can reuse the common functionality in FruitPicker.pickFruit() by implementing a factory method in subclasses:
class OrangePicker extends FruitPicker {
@Override
protected Fruit makeFruit() {
return new Orange();
}
}
Abstract Factory
Abstract factory is normally used for t...
PHP Fatal error: Cannot redeclare class
... always obvious, since you could have a long chain of files being included by one another.
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How to go back in Eclipse?
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In addition to the keyboard shortcut mentioned by @lucas, there is the left and right arrow icons in the toolbar. It also has a handy back to last edit location as well.
Both of these are of course reflected in the menu under Navigate as well.
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Listing only directories in UNIX
...sically filters the expansion of '*', i.e. all entries in the current dir, by the -type d condition.
Advantage is that, output is same as ls -1 *, but only with directories
and entries do not start with a dot
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How to handle the modal closing event in Twitter Bootstrap?
... imageUploader: {
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space between divs - display table-cell
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brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
Need to understand the usage of SemaphoreSlim
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How to remove the first character of string in PHP?
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Exec time for the 3 answers :
Remove the first letter by replacing the case
$str = "hello";
$str[0] = "";
// $str[0] = false;
// $str[0] = null;
// replaced by �, but ok for echo
Exec time for 1.000.000 tests : 0.39602184295654 sec
Remove the first letter with substr()
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Deserializing JSON Object Array with Json.net
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Using the accepted answer you have to access each record by using Customers[i].customer, and you need an extra CustomerJson class, which is a little annoying. If you don't want to do that, you can use the following:
public class CustomerList
{
[JsonConverter(typeof(MyListConve...
Truncate (not round) decimal places in SQL Server
...numeric_expression is rounded to the number of decimal positions specified by length. When length is a negative number, numeric_expression is rounded on the left side of the decimal point, as specified by length.
function
Is the type of operation to perform. function must be tinyint, smallint, or in...