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What is the Scala annotation to ensure a tail recursive function is optimized?
...e to Scala version 2.8.0.RC5 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_18).
Type in expressions to have them evaluated.
Type :help for more information.
scala> import scala.annotation.tailrec
import scala.annotation.tailrec
scala> class Tails {
| @tailrec def boom(x: Int): Int = {
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What is the difference between a regular string and a verbatim string?
... a trial version of Resharper and it always suggests that I switch regular strings to verbatim strings. What is the difference?
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Search text in stored procedure in SQL Server
...ike '%\[ABD\]%' ESCAPE '\'
Then the square brackets will be treated as a string literals not as wild cards.
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Convert a Python list with strings all to lowercase or uppercase
I have a python list variable that contains strings. Is there a python function that can convert all the strings in one pass to lowercase and vice versa, uppercase?
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How to disassemble one single function using objdump?
I've got a binary installed on my system, and would like to look at the disassembly of a given function. Preferrably using objdump , but other solutions would be acceptable as well.
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Apache Commons equals/hashCode builder [closed]
...way is even nicer:
Here's a sample Bean:
public class Bean{
private String name;
private int length;
private List<Bean> children;
}
Here's equals() and hashCode() implemented with Commons/Lang:
@Override
public int hashCode(){
return new HashCodeBuilder()
.append...
Why is the shovel operator (
... += 'quux'
a.object_id #=> 2154742560
So << alters the original string rather than creating a new one. The reason for this is that in ruby a += b is syntactic shorthand for a = a + b (the same goes for the other <op>= operators) which is an assignment. On the other hand << is ...
Java String array: is there a size of method?
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Yes, .length (property-like, not a method):
String[] array = new String[10];
int size = array.length;
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Check if a string contains an element from a list (of strings)
...With LINQ, and using C# (I don't know VB much these days):
bool b = listOfStrings.Any(s=>myString.Contains(s));
or (shorter and more efficient, but arguably less clear):
bool b = listOfStrings.Any(myString.Contains);
If you were testing equality, it would be worth looking at HashSet etc, bu...
Find index of last occurrence of a substring in a string
...ant to find the position (or index) of the last occurrence of a certain substring in given input string str .
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