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What does the '.' (dot or period) in a Go import statement do?
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It allows the identifiers in the imported package to be referred to in the local file block without a qualifier.
If an explicit period (.) appears instead of a name, all the package's exported identifiers will be declared in...
Display Animated GIF
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Android actually can decode and display animated GIFs, using android.graphics.Movie class.
This is not too much documented, but is in SDK Reference. Moreover, it is used in Samples in ApiDemos in BitmapDecode example with some animated ...
How to update a value, given a key in a hashmap?
...e computeIfPresent method and supply it a mapping function, which will be called to compute a new value based on existing one.
For example,
Map<String, Integer> words = new HashMap<>();
words.put("hello", 3);
words.put("world", 4);
words.computeIfPresent("hello", (k, v) -> v + 1);
S...
Simplest way to serve static data from outside the application server in a Java web application
...s from where this command is been invoked. So if Tomcat is for example installed on C: then the /path/to/files would actually point to C:\path\to\files.
If the files are all located outside the webapp, and you want to have Tomcat's DefaultServlet to handle them, then all you basically need to do in ...
A type for Date only in C# - why is there no Date type?
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Allow me to add an update to this classic question:
Jon Skeet's Noda Time library is now quite mature, and has a date-only type called LocalDate. (Local in this case just means local to someone, not necessarily local to th...
Why does Path.Combine not properly concatenate filenames that start with Path.DirectorySeparatorChar
...re's the actual Combine method from the .NET source. You can see that it calls CombineNoChecks, which then calls IsPathRooted on path2 and returns that path if so:
public static String Combine(String path1, String path2) {
if (path1==null || path2==null)
throw new ArgumentNullException...
How does one make random number between range for arc4random_uniform()?
so my goal in this codebit is to randomly roll two dice and as we all know your regular die only has 6 sides so I imported Foundation for access to arc4random_uniform(UInt32). I attempted using the range of (1..7) to avoid randomly getting 0 however that returned an error which I didn't enjoy too mu...
How do I convert an array object to a string in PowerShell?
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$a = 'This', 'Is', 'a', 'cat'
Using double quotes (and optionally use the separator $ofs)
# This Is a cat
"$a"
# This-Is-a-cat
$ofs = '-' # after this all casts work this way until $ofs changes!
"$a"
Using operator join
# This-Is-a-cat
$a -join '-'
# ThisIsacat
-join $a
Using c...
How to generate string of a certain length to insert into a file to meet a file size criteria?
...file size. I have a windows application written in C# which will automatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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Limiting number of displayed results when using ngRepeat
...lays phones. I’m on step 5 and I thought as an experiment I’d try to allow users to specify how many they’d like to be shown. The view looks like this:
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