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Random shuffling of an array
...14, 13, 12, 11 };
shuffleArray(solutionArray);
for (int i = 0; i < solutionArray.length; i++)
{
System.out.print(solutionArray[i] + " ");
}
System.out.println();
}
// Implementing Fisher–Yates shuffle
static void shuffleArray(int[] ar)
{
// If running on ...
Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
...ile perusing libavcodec (which is written in C) the other day, I noticed multiple uses of it. Is it ever advantageous to use goto in a language that supports loops and functions? If so, why?
...
LINQ order by null column where order is ascending and nulls should be last
...e the first expression, OrderBy(), sort bool values: true/false. false result go first follow by the true result (nullables) and ThenBy() sort the non-null values alphabetically.
So, I prefer doing something more readable such as this:
.OrderBy(f => f.SomeString ?? "z")
If SomeString is null,...
Stack smashing detected
...t buffer overflow errors. For example in the following snippet:
#include <stdio.h>
void func()
{
char array[10];
gets(array);
}
int main(int argc, char **argv)
{
func();
}
The compiler, (in this case gcc) adds protection variables (called canaries) which have known values. An ...
Multi-line strings in PHP
...;
Works.
You can also use the following:
$xml = "l\nvv";
or
$xml = <<<XML
l
vv
XML;
Edit based on comment:
You can concatenate strings using the .= operator.
$str = "Hello";
$str .= " World";
echo $str; //Will echo out "Hello World";
...
Eclipse JUNO doesn't start
... this worked for me (removing org.eclipse.core.resources resulted in eclipse still not opening), but what information have i lost by removing this file, and is there a way to recover it from the file?
– inor
Oct 10 '12 at 5:55
...
How to close activity and go back to previous activity in android
...o a return after calling finish() to fix this.
If you want to return results to activity one then when starting activity two you need:
startActivityForResults(myIntent, MY_REQUEST_CODE);
Inside your called activity you can then get the Intent from the onCreate() parameter or used
getIntent();
...
Java's Interface and Haskell's type class: differences and similarities?
... is expected to be the same type as the object itself, like how Comparable<T> does it, where you are expected to use Foo implements Comparable<Foo> so that the compareTo(T otherobject) kind of has type t -> t -> Ordering. But that still requires the programmer to follow this rule, ...
How to convert `git:` urls to `http:` urls
...
Here's an example of rewriting the default protocol for GitHub:
git config --global url.https://github.com/.insteadOf git://github.com/
Git documentation for url.<base>.insteadOf:
git config [--global] url.<base>.insteadOf <other_url>
Any URL th...
Safe integer parsing in Ruby
...
Ruby has this functionality built in:
Integer('1001') # => 1001
Integer('1001 nights')
# ArgumentError: invalid value for Integer: "1001 nights"
As noted in answer by Joseph Pecoraro, you might want to watch f...