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What is the difference between atomic / volatile / synchronized?
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return counter.getAndIncrement();
}
The AtomicInteger class uses CAS (compare-and-swap) low-level CPU operations (no synchronization needed!) They allow you to modify a particular variable only if the present value is equal to something else (and is returned successfully). So when you execute g...
Parsing JSON using Json.net
...t;
/// This class encodes and decodes JSON strings.
/// Spec. details, see http://www.json.org/
///
/// JSON uses Arrays and Objects. These correspond here to the datatypes ArrayList and Hashtable.
/// All numbers are parsed to doubles.
/// </summary>
using System;
using System.Collect...
VB.NET equivalent to C# var keyword [duplicate]
... IIRC, When "Option Infer" is OFF, the result is dynamic foo, for backward compatibility. Maybe "Option Strict" has to also be OFF for it to be dynamic, not sure. EDIT I just saw Konrad's answer. He explains the different combinations.
– ToolmakerSteve
Dec 9 '1...
Click event doesn't work on dynamically generated elements [duplicate]
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alert($(this).text());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<h2></h2>
<button>generate new element</button>
The above works for those using jQuery version 1.7+. If you're using an older versi...
Django 1.7 throws django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet
... edited May 23 '17 at 12:34
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answered Dec 11 '14 at 15:35
Nick SpacekNick Spa...
JavaScript before leaving the page
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Simulating group_concat MySQL function in Microsoft SQL Server 2005?
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How to make the hardware beep sound in Mac OS X 10.6
...tionality you're thinking of is an artifact of very old (pre-1990s) IBM PC-compatible hardware. Before most computers had sound cards, most machines had a small speaker or piezo buzzer connected to one of the channels of a timer chip. This could be used to generate simple tones or beeps. Even after ...
Copying files from one directory to another in Java
...(IOException e) {
e.printStackTrace();
}
FileUtils class from apache commons-io library, available since version 1.2.
Using third party tools instead of writing all utilities by ourself seems to be a better idea. It can save time and other valuable resources.
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Are trailing commas in arrays and objects part of the spec?
Are trailing commas standard in JavaScript, or do most browsers like Chrome and Firefox just tolerate them?
6 Answers
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