Generating random numbers effectively

Question

How do you generate random numbers effectively?
Every time a random number program boots up, it starts spitting same numbers as before. (I guess because of quasi nature of

Answer 1

I am not so conversant in C#. But I don't think this problem would occur in Java because the default constructor of Random class uses a seed based on current time and a unique count identifier.Below is code from java.util.Random class.

private static volatile long seedUniquifier = 8682522807148012L;
public Random() { this(++seedUniquifier + System.nanoTime()); }

If C# doesent support this out of box, you could use the above code to create a unique seed each time.

P.S: Note that since access to seedUniquifier is not synchronized, even though its volatile, there is a small possibility that same seeds are used for multiple Random objects. From javadoc of Random class:

"This constructor sets the seed of the random number generator to a value very likely to be distinct from any other invocation of this constructor."