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Is the order of elements in a JSON list preserved?
...unordered collection of zero or more name/value
pairs, where a name is a string and a value is a string, number,
boolean, null, object, or array.
An array is an ordered sequence of zero or more values.
The terms "object" and "array" come from the conventions of
JavaScript.
Some imp...
How to implement a confirmation (yes/no) DialogPreference?
...
.setIcon(android.R.drawable.ic_dialog_alert)
.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
Toast.makeText(MainActivity.this, "Yaay", Toast.LENGTH_SHORT).show();
}})
.setNegativeButton...
how to get first three characters of an NSString?
How can I return the first three characters of an NSString?
3 Answers
3
...
Mutex example / tutorial? [closed]
... entry to the room much like the phone booth. So now, even though you have extra mutexes, you can reuse the phone booth in any project. Another option would be to expose locking mechanisms for each device in the room and manage the locks in the room class. Either way, you wouldn't add new locks to t...
Is it possible to do start iterating from an element other than the first using foreach?
...
Yes. Do the following:
Collection<string> myCollection = new Collection<string>;
foreach (string curString in myCollection.Skip(3))
//Dostuff
Skip is an IEnumerable function that skips however many you specify starting at the current index. On...
class
...). Usually, this is used to define class/module ("static") methods:
class String
class << self
def value_of obj
obj.to_s
end
end
end
String.value_of 42 # => "42"
This can also be written as a shorthand:
class String
def self.value_of obj
obj.to_s
end
end
O...
How to check if a specific key is present in a hash or not?
...
nice: "string" accessor works for JSON.parse parsed objects, too :)
– Bijan
Aug 8 '16 at 14:32
2
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How do you create a transparent demo screen for an Android app?
...ViewTarget(showcasedView);
ShowcaseView.insertShowcaseView(target, this, R.string.showcase_title, R.string.showcase_details);
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Java unchecked: unchecked generic array creation for varargs parameter
...the implicit creation of an array at the calling site. So
List<List<String>> combinations =
Utils.createCombinations(cocNumbers, vatNumbers, ibans);
is actually
List<List<String>> combinations =
Utils.createCombinations(new List<String>[]{cocNumbers, vatNumb...
Adding up BigDecimals using Streams
...mport java.util.LinkedList;
public class Demo
{
public static void main(String[] args)
{
LinkedList<Invoice> invoices = new LinkedList<>();
invoices.add(new Invoice("C1", "I-001", BigDecimal.valueOf(.1), BigDecimal.valueOf(10)));
invoices.add(new Invoice("C2", "I-002", B...