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MySQL “WITH” clause
...ostacho Hello, could please spoon-feed me a little here? I'm struggling to convert it to MySQL. Can you take a look at it? link or answer my question here maybe? link
– Pranav
Jul 3 '15 at 20:05
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How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator)?
... com.google.common.base.Preconditions.*;
String getDayOfMonthSuffix(final int n) {
checkArgument(n >= 1 && n <= 31, "illegal day of month: " + n);
if (n >= 11 && n <= 13) {
return "th";
}
switch (n % 10) {
case 1: return "st";
cas...
How to find an available port?
...sten on any free port.
ServerSocket s = new ServerSocket(0);
System.out.println("listening on port: " + s.getLocalPort());
If you want to use a specific set of ports, then the easiest way is probably to iterate through them until one works. Something like this:
public ServerSocket create(int[] p...
How do pointer to pointers work in C?
How do pointers to pointers work in C?
When would you use them?
14 Answers
14
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Android Camera : data intent returns null
...
The default Android camera application returns a non-null intent only when passing back a thumbnail in the returned Intent. If you pass EXTRA_OUTPUT with a URI to write to, it will return a null intent and the picture is in the URI that you passed in.
You can verify this by looking...
How many levels of pointers can we have?
How many pointers ( * ) are allowed in a single variable?
14 Answers
14
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Directory does not exist. Parameter name: directoryVirtualPath
...
I converted a asp.net mvc project to web api and really had no use of jquery, css files. Glad I found your post. Fixed it and everything is working fine.
– Sam
Mar 21 '15 at 13:21
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What is the difference between a reference type and value type in c#?
...
Your examples are a little odd because while int, bool and float are specific types, interfaces and delegates are kinds of type - just like struct and enum are kinds of value types.
I've written an explanation of reference types and value types in this article. I'd be ...
Randomize a List
...
public static void Shuffle<T>(this IList<T> list)
{
int n = list.Count;
while (n > 1) {
n--;
int k = rng.Next(n + 1);
T value = list[k];
list[k] = list[n];
list[n] = value;
}
}
Usage:
List<Product> pro...
Difference between const & const volatile
...ised due to the const qualifier) - at least through that particular name/pointer.
The volatile part of the qualifier means that the compiler cannot optimize or reorder access to the object.
In an embedded system, this is typically used to access hardware registers that can be read and are updated ...