Correct method of a “static” Random.Next in C#?

Question

Why do i need to create an instance of Random class, if i want to create a random number between 1 and 100 ....like

Random rand = new Random();
rand.Next(1,1         


        

Answer 1

Creating a new instance of Random then calling it immediately multiple times, e.g.:

for (int i = 0; i < 1000; i++)
{
     Random rand = new Random();
     Console.WriteLine(rand.Next(1,100));
}    

Will give you a distribution that is weighted towards the lower end of the range.

Doing it this way:

Random rand = new Random();
for (int i = 0; i < 1000; i++)
{
     Console.WriteLine(rand.Next(1,100));
}    

Will give you a better distribution.