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How can I check whether an array is null / empty?
...mpty" here has no official meaning. I'm choosing to define empty as having 0 elements:
arr = new int[0];
if (arr.length == 0) {
System.out.println("array is empty");
}
An alternative definition of "empty" is if all the elements are null:
Object arr[] = new Object[10];
boolean empty = true;
for...
Importing modules from parent folder
...
edited Jan 12 '17 at 18:30
MERose
2,79255 gold badges3535 silver badges6060 bronze badges
answered Apr ...
SPA best practices for authentication and session management
...
+50
This question has been addressed, in a slightly different form, at length, here:
RESTful Authentication
But this addresses it from ...
What is the easiest/best/most correct way to iterate through the characters of a string in Java?
...hod is a constant time operation.
String s = "...stuff...";
for (int i = 0; i < s.length(); i++){
char c = s.charAt(i);
//Process char
}
That's what I would do. It seems the easiest to me.
As far as correctness goes, I don't believe that exists here. It is all based on your...
Location Manager Error : (KCLErrorDomain error 0)
...ion.
– Undistraction
Jun 18 '13 at 10:18
9
If you are wondering where is SCHEME follow this link ...
Is there a conditional ternary operator in VB.NET?
...
605
Depends upon the version. The If operator in VB.NET 2008 is a ternary operator (as well as a n...
Parsing JSON using Json.net
...
James Newton-King
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answered Dec 31 '08 at 10:37
Marc Gravell♦Marc Gravell
...
Remove header and footer from window.print()
...
150
In Chrome it's possible to hide this automatic header/footer using
@page { margin: 0; }
Since...
What does the comma operator , do?
...
answered Sep 9 '08 at 18:37
lillqlillq
12.5k2020 gold badges5050 silver badges5858 bronze badges
...
Header files for x86 SIMD intrinsics
...rinsics.
– onitake
Oct 29 '14 at 16:01
4
Why are p, t, s and n for SSE3/SSSE3/SSE4.1 and 4.2? Wha...