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HashSet vs LinkedHashSet
...n item
LinkedHashSet maintain the order of insertion item
Example
Set<String> set = ...;// using new HashSet<>() OR new LinkedHashSet<>()
set.add("2");
set.add("1");
set.add("ab");
for(String value : set){
System.out.println(value);
}
HashSet output
1
ab
2
LinkedHashSet...
What does “=>” mean in PHP?
..._dump("user = $user and password = $pass");
}
Will get you this output:
string 'user = user1 and password = password1' (length=37)
string 'user = user2 and password = password2' (length=37)
(I'm using var_dump to generate a nice output, that facilitates debuging; to get a normal output, you'd u...
Why check both isset() and !empty()
...p doc(empty) you'll see this things are considered emtpy
* "" (an empty string)
* 0 (0 as an integer)
* "0" (0 as a string)
* NULL
* FALSE
* array() (an empty array)
* var $var; (a variable declared, but without a value in a class)
while isset check if the variable isset and not null which can...
JQuery: 'Uncaught TypeError: Illegal invocation' at ajax request - several elements
...sed in to the data option as an object (technically, anything other than a string) will be processed and transformed into a query string, fitting to the default content-type "application/x-www-form-urlencoded". If you want to send a DOMDocument, or other non-processed data, set this option to false....
How to remove padding around buttons in Android?
...id:insetTop="0dp"
android:insetBottom="0dp"
android:text="@string/view_video"
android:textColor="@color/white"/>
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Preferred way of loading resources in Java
...rch three places as shown below. Comments welcome.
public URL getResource(String resource){
URL url ;
//Try with the Thread Context Loader.
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
if(classLoader != null){
url = classLoader.getResource(res...
Obtain form input fields using jQuery?
...e() (api.jquery.com/serialize) puts all of the form's elements in a single string ready for appending to a URL in a query string, essentially mimicking a GET form request. This would not accomplish what nickf's answer accomplishes.
– Christopher Parker
Mar 2 '1...
Why does Decimal.Divide(int, int) work, but not (int / int)?
...g code lines after each of the above examples:
Console.WriteLine(result.ToString());
Console.WriteLine(result.GetType().ToString());
The output in the first case will be
0
System.Int32
..and in the second case:
0,5
System.Decimal
...
How to parse JSON data with jQuery / JavaScript?
...ajax function and JSON serialize the data parameter, like that: data: JSON.stringify({ get_param: 'value' }). Then in your php script you would need to json decode to get back the original object.
– Darin Dimitrov
Jan 21 '12 at 9:16
...
C# 'is' operator performance
...double foo = 1.23;
}
class Program
{
static void Main(string[] args)
{
MyClass myobj = new MyClass();
int n = 10000000;
Stopwatch sw = Stopwatch.StartNew();
for (int i = 0; i < n; i++)
{
boo...