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Create or write/append in text file
... "wr" in your code:
fopen("logs.txt", "wr")
The file open modes in PHP http://php.net/manual/en/function.fopen.php is the same as in C: http://www.cplusplus.com/reference/cstdio/fopen/
There are the following main open modes "r" for read, "w" for write and "a" for append, and you cannot combin...
Animated GIF in IE stopping
...ut posting this for fellow googlers:
Spin.js DOES WORK for this use case: http://fgnass.github.com/spin.js/
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C++0x lambda capture by value always const?
...) -> bool
Refer to this page for fore details (Explanation section):
http://en.cppreference.com/w/cpp/language/lambda
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java.lang.OutOfMemoryError: Java heap space
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You may want to look at this site to learn more about memory in the JVM:
http://developer.streamezzo.com/content/learn/articles/optimization-heap-memory-usage
I have found it useful to use visualgc to watch how the different parts of the memory model is filling up, to determine what to change.
I...
How to set target hosts in Fabric file
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Since fab 1.5 this is a documented way to dynamically set hosts.
http://docs.fabfile.org/en/1.7/usage/execution.html#dynamic-hosts
Quote from the doc below.
Using execute with dynamically-set host lists
A common intermediate-to-advanced use case for Fabric is to
parameterize lo...
Default value for field in Django model
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Set editable to False and default to your default value.
http://docs.djangoproject.com/en/stable/ref/models/fields/#editable
b = models.CharField(max_length=7, default='0000000', editable=False)
Also, your id field is unnecessary. Django will add it automatically.
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Post parameter is always null
...The official ASP.NET site was updated today with an excellent explanation: https://docs.microsoft.com/en-us/aspnet/web-api/overview/advanced/sending-html-form-data-part-1
In a nutshell, when sending a single simple type in the body, send just the value prefixed with an equal sign (=), e.g. body:
=...
Good reasons to prohibit inheritance in Java?
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you might want to make immutable objects (http://en.wikipedia.org/wiki/Immutable_object), you might want to create a singleton (http://en.wikipedia.org/wiki/Singleton_pattern), or you might want to prevent someone from overriding the method for reasons of efficiency,...
When and why JPA entities should implement Serializable interface?
...over-the-wire (serialize them to some other representation), store them in http session (which is in turn serialized to hard disk by the servlet container), etc.
Just for the sake of persistence, Serializable is not needed, at least with Hibernate.
But it is a best practice to make them Serializabl...
How to Sign an Already Compiled Apk
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Automated Process:
Use this tool (uses the new apksigner from Google):
https://github.com/patrickfav/uber-apk-signer
Disclaimer: Im the developer :)
Manual Process:
Step 1: Generate Keystore (only once)
You need to generate a keystore once and use it to sign your unsigned apk.
Use the keyto...