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Create instance of generic type whose constructor requires a parameter?
... will need to ensure yourself regarding the specific constructor existing, and this kind of requirement may be a code smell (or rather something you should just try to avoid in the current version on c#).
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How to “log in” to a website using Python's Requests module?
...king. I'm new to this...so I can't figure out if I should make my Username and Password cookies or some type of HTTP authorization thing I found (??).
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Should I always return IEnumerable instead of IList?
...t;T>:
IndexOf(T item)
Insert(int index, T item)
RemoveAt(int index)
and Properties:
T this[int index] { get; set; }
If you need these methods in any way, then by all means return IList<T>.
Also, if the method that consumes your IEnumerable<T> result is expecting an IList<T...
Instantiating a generic class in Java [duplicate]
...ested in - any way of specifying the appropriate Class<T> reference) and keep that value as a field:
public class Test {
public static void main(String[] args) throws IllegalAccessException,
InstantiationException {
Generic<Bar> x = new Generic<>(Bar.class)...
Adding two Java 8 streams, or an extra element to a stream
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If you add static imports for Stream.concat and Stream.of, the first example could be written as follows:
Stream<Foo> stream = concat(stream1, concat(stream2, of(element)));
Importing static methods with generic names can result in code that becomes difficult ...
SQL Data Reader - handling Null column values
...der.GetString(indexFirstName);
}
That's your only reliable way to detect and handle this situation.
I wrapped those things into extension methods and tend to return a default value if the column is indeed null:
public static string SafeGetString(this SqlDataReader reader, int colIndex)
{
if(!...
How to round a number to significant figures in Python
... You should use log10(abs(x)), otherwise negative numbers will fail (And treat x == 0 separately of course)
– Tobias Kienzler
Jul 30 '13 at 8:06
2
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How do I make the method return type generic?
...his is really just an updated version of casting from the pre-generic days and doesn't add any additional safety.
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How to use the IEqualityComparer
...the solution is to forward GetHashCode to Class_reglement.Numf.GetHashCode and implement it appropriately there.
Apart from that, your Equals method is full of unnecessary code. It could be rewritten as follows (same semantics, ¼ of the code, more readable):
public bool Equals(Class_reglement x, ...
Finding three elements in an array whose sum is closest to a given number
Given an array of integers, A 1 , A 2 , ..., A n , including negatives and positives, and another integer S. Now we need to find three different integers in the array, whose sum is closest to the given integer S. If there exists more than one solution, any of them is ok.
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