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What is the default initialization of an array in Java?
...ay,
Quoting from the jls spec http://docs.oracle.com/javase/specs/jls/se7/html/jls-4.html#jls-4.12.5
"array component is initialized with a default value when it is created"
I think irrespective of whether array is local or instance or class variable it will with default values
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convert ArrayList to JSONArray
...ray constructor:
http://developer.android.com/reference/org/json/JSONArray.html#JSONArray%28java.util.Collection%29
collection:
http://developer.android.com/reference/java/util/Collection.html
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How do I change the text of a span element using JavaScript?
...older browsers may not know textContent, it is not recommended to use innerHTML as it introduces an XSS vulnerability when the new text is user input (see other answers below for a more detailed discussion):
//POSSIBLY INSECURE IF NEWTEXT BECOMES A VARIABLE!!
document.getElementById("myspan").inner...
How to select a drop-down menu value with Selenium using Python?
... "xpath" version if the author of the form has not properly setup a select HTML element. If simply using input fields, xpath should work.
– Matthew
Dec 28 '17 at 21:08
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How to replace spaces in file names using a bash script
...${parameter/pattern/string}. See: https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html or http://wiki.bash-hackers.org/syntax/pe .
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How do you turn a Mongoose document into a plain object?
...or should be the result of doc.toObject().
http://mongoosejs.com/docs/api.html#document_Document-toObject
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Synthetic Class in Java
...c Proxies.
See http://java.sun.com/j2se/1.5.0/docs/guide/reflection/proxy.html for more information.
Other open-source libraries, such as CGLIB and ASM also allow you to generate synthetic classes, and are more powerful than the libraries provided with the JRE.
Synthetic classes are used by AOP (...
PostgreSQL database default location on Linux
...ory;
More information:
https://www.postgresql.org/docs/current/sql-show.html
https://www.postgresql.org/docs/current/runtime-config-file-locations.html
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What is the LD_PRELOAD trick?
... @heinrich5991 Real and effective user ids: lst.de/~okir/blackhats/node23.html
– gsingh2011
Mar 2 '13 at 6:22
61
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Do you have to put Task.Run in a method to make it async?
... await for its "yielding" points:
private async Task<int> GetWebPageHtmlSizeAsync()
{
var client = new HttpClient();
var html = await client.GetAsync("http://www.example.com/");
return html.Length;
}
So, the basic pattern of things is to have async code depend on "awaitables" in its a...