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Can one do a for each loop in java in reverse order?
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The Collections.reverse method actually returns a new list with the elements of the original list copied into it in reverse order, so this has O(n) performance with regards to the size of the original list.
As a more efficient solution, you could write a deco...
Best way to randomize an array with .NET
...e: as used in my example, Random() is perfectly thread-safe, unless you're allowing the routine in which you randomize the array to be re-entered, in which case you'll need something like lock (MyRandomArray) anyway in order not to corrupt your data, which will protect rnd as well.
Also, it should b...
What are the effects of exceptions on performance in Java?
Question: Is exception handling in Java actually slow?
18 Answers
18
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Is there a difference between single and double quotes in Java?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
How do I get hour and minutes from NSDate?
...ateComponents:
Obj-C:
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"<your date format goes here"];
NSDate *date = [dateFormatter dateFromString:string1];
NSCalendar *calendar = [NSCalendar currentCalendar];
NSDateComponents *components = [calend...
Java: how can I split an ArrayList in multiple small ArrayLists?
...ist are reflected in this list, and vice-versa. The returned list supports all of the optional list operations supported by this list.
Example:
List<Integer> numbers = new ArrayList<Integer>(
Arrays.asList(5,3,1,2,9,5,0,7)
);
List<Integer> head = numbers.subList(0, 4);
List...
i18n Pluralization
...orry but this just doesn't work with lots of languages. Pluralization is really complex, see translate.sourceforge.net/wiki/l10n/pluralforms Due to this I think that my answer is more appropriate.
– sorin
May 29 '11 at 6:55
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Gson custom seralizer for one variable (of many) in an object using TypeAdapter
...a great question because it isolates something that should be easy but actually requires a lot of code.
To start off, write an abstract TypeAdapterFactory that gives you hooks to modify the outgoing data. This example uses a new API in Gson 2.2 called getDelegateAdapter() that allows you to look up...
Unit testing private methods in C#
Visual Studio allows unit testing of private methods via an automatically generated accessor class. I have written a test of a private method that compiles successfully, but it fails at runtime. A fairly minimal version of the code and the test is:
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How can I list ALL DNS records?
Is there any way I can list ALL DNS records for a domain?
8 Answers
8
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