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How to update a value, given a key in a hashmap?
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1001
map.put(key, map.get(key) + 1);
should be fine. It will update the value for the existing m...
Split a List into smaller lists of N size
...ist<float[]>> SplitList(List<float[]> locations, int nSize=30)
{
var list = new List<List<float[]>>();
for (int i = 0; i < locations.Count; i += nSize)
{
list.Add(locations.GetRange(i, Math.Min(nSize, locations.Count - i)));
}
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Show compose SMS view in Android
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200
You can use the following code:
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("sms:"
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How to understand nil vs. empty vs. blank in Ruby
...used on strings, arrays and hashes and returns true if:
String length == 0
Array length == 0
Hash length == 0
Running .empty? on something that is nil will throw a NoMethodError.
That is where .blank? comes in. It is implemented by Rails and will operate on any object as well as work like .empt...
Use ASP.NET MVC validation with jquery ajax?
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+50
Client Side
Using the jQuery.validate library should be pretty simple to set up.
Specify the following settings in your Web.config f...
Declaring a custom android UI element using XML
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+50
The Android Developer Guide has a section called Building Custom Components. Unfortunately, the discussion of XML attributes only cove...
What does ~> mean in a gem file [duplicate]
...d, but it limits versions to a subset of the possible versions. So ~> 2.0.0 means ">= 2.0.0 and < 2.1.0" in version numbers.
1.2.3 seems to be the latest version of Formtasic, that's why you're getting this error message.
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Very Long If Statement in Python [duplicate]
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edited Jul 13 '18 at 8:04
Thiago Figueiro
37044 silver badges1414 bronze badges
answered Mar 9 '11 at...
Remove ListView separator(in the xml layout file) [duplicate]
...ight to zero and divider to null like this in xml:
android:dividerHeight="0dp"
android:divider="@null"
Or in java:
getListView().setDividerHeight(0);
getListView().setDivider(null);
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