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How to get number of entries in a Lua table?
...ind an answer. The Lua # operator only counts entries with integer keys, and so does table.getn :
8 Answers
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How can I display a list view in an Android Alert Dialog?
In an Android application, I want to display a custom list view in an AlertDialog.
11 Answers
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Why can't I use float value as a template parameter?
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The current C++ standard does not allow float (i.e. real number) or character string literals to be used as template non-type parameters. You can of course use the float and char * types as normal arguments.
Perhaps the author is using a com...
Sending websocket ping/pong frame from browser
...gn pattern (e.g. I literally send "ping" or any other string to the server and have it respond). Is ping-pong at all related to continuation frames?
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Defining static const integer members in class definition
My understanding is that C++ allows static const members to be defined inside a class so long as it's an integer type.
7 An...
Express.js: how to get remote client address
I don't completely understand how I should get a remote user IP address.
16 Answers
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How to get the first non-null value in Java?
...(i != null) return i;
return null;
}
For efficient reasons, you can handle the common cases as follows:
public static <T> T coalesce(T a, T b) {
return a == null ? b : a;
}
public static <T> T coalesce(T a, T b, T c) {
return a != null ? a : (b != null ? b : c);
}
public s...
Is there a better way to iterate over two lists, getting one element from each list for each iterati
I have a list of Latitudes and one of Longitudes and need to iterate over the latitude and longitude pairs.
7 Answers
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How to change line color in EditText
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This is the best tool that you can use for all views and its FREE many thanks to @Jérôme Van Der Linden.
The Android Holo Colors Generator allows you to easily create Android components such as EditText or spinner with your own colours for your Android application. It will ge...
What is the difference between sites-enabled and sites-available directory?
What is use of these two directories in apache2 and how can we do it?
3 Answers
3
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