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How to get the build/version number of your Android application?
...fo.versionName;
} catch (PackageManager.NameNotFoundException e) {
e.printStackTrace();
}
And you can get the version code by using this
int verCode = pInfo.versionCode;
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Check if an array is empty or exists
...ge_array.length). IMHO, while you can safely rely on JS's loose-typing, to convert a 0 integer to false and a non-zero integer to true, I consider it preferable, for readability in the future, to "say what you mean". I would do .. && image_array.length > 0).
– Toolma...
Synchronous request in Node.js
...ce when you use res.getBody(), all get body does is accept an encoding and convert the response data. Just do res.body.toString(encoding) instead.
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How to use a filter in a controller?
...ways to do this.
Let's assume you have the following simple filter, which converts a string to uppercase, with a parameter for the first character only.
app.filter('uppercase', function() {
return function(string, firstCharOnly) {
return (!firstCharOnly)
? string.toUpperCas...
Distinct by property of class with LINQ [duplicate]
...Car y)
{
return x.CarCode.Equals(y.CarCode);
}
public int GetHashCode(Car obj)
{
return obj.CarCode.GetHashCode();
}
#endregion
}
And then
var uniqueCars = cars.Distinct(new CarEqualityComparer());
...
Iterating over every two elements in a list
...turns a zip object in Python 3, which is not subscriptable. It needs to be converted to a sequence (list, tuple, etc.) first, but "not working" is a bit of a stretch.
– vaultah
Feb 25 '17 at 14:03
...
What does 'public static void' mean in Java?
...
void means that the method has no return value. If the method returned an int you would write int instead of void.
The combination of all three of these is most commonly seen on the main method which most tutorials will include.
...
Copying files from one directory to another in Java
... FileUtils.copyDirectory(source, dest);
} catch (IOException e) {
e.printStackTrace();
}
FileUtils class from apache commons-io library, available since version 1.2.
Using third party tools instead of writing all utilities by ourself seems to be a better idea. It can save time and other valu...
How do I prevent the modification of a private field in a class?
...:
public String [] getArr ()
{
return arr.clone ();
}
or to
public int getArrLength ()
{
return arr.length;
}
public String getArrElementAt (int index)
{
return arr [index];
}
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Are +0 and -0 the same?
...y to fix this is to do smth like:
if (x==0) x=0;
or just:
x+=0;
This converts the number to +0 in case it was -0.
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