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Android: Storing username and password?
...ve to re-enter their name/password often, so storing that info makes sense from a usability perspective.
The advice from the (Android dev guide) is:
In general, we recommend minimizing the frequency of asking for user
credentials -- to make phishing attacks more conspicuous, and less
likel...
Find files and tar them (with spaces)
...a large number of files
Also see:
GNU tar manual
How can I build a tar from stdin?, search for null
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What are the pros and cons of performing calculations in sql vs. in your application
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I think that a good rule of thumb is: don't bring back from SQL server rows of data you don't ultimately need. For example, if you have to perform aggregate operations, they likely belong in SQL. Joins between tables or subqueries? SQL. That's also the approach we use with badges...
How do I get the time of day in javascript/Node.js?
... at the getHours() method for the Date object.
getHours() return the time from 0 - 23, so make sure to deal with it accordingly. I think 0-23 is a bit more intuitive since military time runs from 0 - 23, but it's up to you.
With that in mind, the code would be something along the lines of:
var da...
Is it possible to use pip to install a package from a private GitHub repository?
I am trying to install a Python package from a private GitHub repository. For a public repository, I can issue the following command which works fine:
...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...e reasons that 16-bit instructions are avoided now. x86-64 inherited this from 8086 for 8-bit and 386 for 16-bit, and decided to have 8 and 16-bit registers work the same way in 64-bit mode as they do in 32-bit mode.
See also Why doesn't GCC use partial registers? for practical details of how wr...
DateTime vs DateTimeOffset
....g. using DateTime.UtcNow ), and whenever we display one, we convert back from UTC to the user's local time.
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How do you return a JSON object from a Java Servlet
...response.setContentType("application/json");
// Get the printwriter object from response to write the required json object to the output stream
PrintWriter out = response.getWriter();
// Assuming your json object is **jsonObject**, perform the following, it will return your json object
out.p...
How to test code dependent on environment variables using JUnit?
...en gets the environment variable using the Environment class, not directly from System.getenv().
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What is a daemon thread in Java?
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A daemon thread is a thread that does not prevent the JVM from exiting when the program finishes but the thread is still running. An example for a daemon thread is the garbage collection.
You can use the setDaemon(boolean) method to change the Thread daemon properties before the th...