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Why is null an object and what's the difference between null and undefined?
...rs♦
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answered Apr 29 '09 at 13:31
RobRob
46.1k44 gold badges69...
Correct way to quit a Qt program?
...CoreApplication::quit() it "tells the application to exit with return code 0 (success).". If you want to exit because you discovered file corruption then you may not want to exit with return code zero which means success, so you should call QCoreApplication::exit() because you can provide a non-zero...
Get all child views inside LinearLayout at once
...earLayout ll = …
final int childCount = ll.getChildCount();
for (int i = 0; i < childCount; i++) {
View v = ll.getChildAt(i);
// Do something with v.
// …
}
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Java variable number or arguments for a method
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edited Oct 20 '17 at 1:43
ErikE
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C# Sort and OrderBy comparison
...n> persons = new List<Person>();
persons.Add(new Person("P005", "Janson"));
persons.Add(new Person("P002", "Aravind"));
persons.Add(new Person("P007", "Kazhal"));
Sort(persons);
OrderBy(persons);
const int COUNT = 1000000;
Stopwatch ...
Passing command line arguments in Visual Studio 2010?
...t how to pass command line arguments to my main function in Visual Studio 2010 Express Edition. I want to debug - how do these command line arguments work?
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How to get the nth occurrence in a string?
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edited Mar 30 at 14:56
mplungjan
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Python dict how to create key or append an element to key?
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edited Sep 30 '14 at 22:31
answered Oct 16 '12 at 0:43
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What is the zero for string?
...="" {
To pass a zero string in stringID, use
k := NewKey(c, "kind", "", 0, p)
From the specification :
When memory is allocated to store a value, either through a
declaration or a call of make or new, and no explicit initialization
is provided, the memory is given a default initializati...
How do you find the sum of all the numbers in an array in Java?
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In java-8 you can use streams:
int[] a = {10,20,30,40,50};
int sum = IntStream.of(a).sum();
System.out.println("The sum is " + sum);
Output:
The sum is 150.
It's in the package java.util.stream
import java.util.stream.*;
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