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Choice between vector::resize() and vector::reserve()
... seconds. Then I refactored the code using pre-allocation with .reserve(), now it takes 3 seconds. Just putting a .reserve(100000) in the beginning of the code saved 27 seconds.
– deniz
Oct 12 '13 at 7:25
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How to parse JSON in Java
...ayList<String> comments;
private String timeOfPost;
}
Parsing
Now you can parse using Gson library:
MyModel model = gson.fromJson(jsonString, MyModel.class);
Gradle import
Remember to import the library in the app Gradle file
implementation 'com.google.code.gson:gson:2.8.6' // or e...
How can I check if a URL exists via PHP?
...for a response.
All code might (and probably will) halt untill you either know the result or the requests have timed out.
For example: the code below could take a LONG time to display the page if the urls are invalid or unreachable:
<?php
$urls = getUrls(); // some function getting say 10 or more...
Should *.xccheckout files in Xcode5 be ignored under VCS?
...ies, the presence of an .xccheckout file in the workspace allows Xcode to know what all of the components that make up a workspace are and where to get them.
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Git stash uncached: how to put away all unstaged changes?
...age "WIP"
# -u option so you also stash untracked files
$ git stash -u
# now un-commit your WIP commit:
$ git reset --soft HEAD^
At this point, you'll have a stash of your unstaged changes and will only have your staged changes present in your working copy.
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Is there a date format to display the day of the week in java?
I know of date formats such as
"yyyy-mm-dd" -which displays date in format 2011-02-26
"yyyy-MMM-dd" -which displays date in format 2011-FEB-26
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How do I make a checkbox required on an ASP.NET form?
...ert it to C# if that is your pleasure. The company I am working for right now requires VB :(
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How to list the files inside a JAR file?
... hey thanks... been looking for a way to do this for a few hours now !!
– Newtopian
May 19 '10 at 9:17
9
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Why is creating a Thread said to be expensive?
... executed within the JVM thread in the OS. They are not often used, to my knowledge.
The biggest factor I can think of in the thread-creation overhead, is the stack-size you have defined for your threads. Thread stack-size can be passed as a parameter when running the VM.
Other than that, thread ...
Retrieving Property name from lambda expression
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now in C# 6 you can simply use nameof like this nameof(User.UserId)
which has many benefits, among them is that this is done at compile time, not runtime.
https://msdn.microsoft.com/en-us/magazine/dn802602.aspx
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