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How to open a specific port such as 9090 in Google Compute Engine
...pecified target tags", and enter into "Target tags" the name of the tag. This tag will be used to apply the new firewall rule onto whichever instance you'd like. Then, make sure the instances have the network tag applied.
To allow incoming TCP connections to port 9090, in "Protocols and Ports" enter...
How do you convert epoch time in C#?
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I presume that you mean Unix time, which is defined as the number of seconds since midnight (UTC) on 1st January 1970.
private static readonly DateTime epoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
public static DateTime FromUnixTime(long unixTime)
{...
Difference between `set`, `setq`, and `setf` in Common Lisp?
What is the difference between "set", "setq", and "setf" in Common Lisp?
6 Answers
6
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Visual Studio 2010 always thinks project is out of date, but nothing has changed
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For Visual Studio/Express 2010 only. See other (easier) answers for VS2012, VS2013, etc
To find the missing file(s), use info from the article Enable C++ project system logging to enable debug logging in Visual Studio and let it ...
Android Min SDK Version vs. Target SDK Version
When it comes to developing applications for Android, what is the difference between Min and Target SDK version? Eclipse won't let me create a new project unless Min and Target versions are the same!
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Fragment MyFragment not attached to Activity
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I've found the very simple answer: isAdded():
Return true if the fragment is currently added to its activity.
@Override
protected void onPostExecute(Void result){
if(isAdded()){
getResources().getString(R.string.app_name);
}
}
To avoid ...
rake db:schema:load vs. migrations
...he much cleaner rake db:schema:load to call instead, why do migrations exist at all?
7 Answers
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Determine if the device is a smartphone or tablet? [duplicate]
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This subject is discussed in the Android Training:
Use the Smallest-width Qualifier
If you read the entire topic, they explain how to set a boolean value in a specific value file (as res/values-sw600dp/attrs.xml):
<resour...
Converting java.util.Properties to HashMap
java.util.Properties is a implementation of java.util.Map , And java.util.HashMap's constructor receives a Map type param. So, why must it be converted explicitly?
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What is the difference between the different methods of putting JavaScript code in an ?
.... In it, he states that using the href section to execute JavaScript code is a bad idea. Even though you have stated that your users must have JavaScript enabled, there's no reason you can't have a simple HTML page that all your JavaScript links can point to for their href section in the event tha...