How to generate random numbers without making new Random objects?

I’m using this as part of a game, but it’s not really a game development question, so I’m putting it on this more general Stack Exchange.

How to test a random-generating feature in application? [duplicate]

Possible Duplicate:
How should I test randomness?

What are best practices for testing programs with stochastic behavior?

Doing R&D work, I often find myself writing programs that have some large degree of randomness in their behavior. For example, when I work in Genetic Programming, I often write programs that generate and execute arbitrary random source code.

Can you use Pi as a crude random number generator?

I recently saw this question over at math.SE. It got me thinking. Could Pi be used as a crude random number generator? I mean the results are well known(how long has pi been computed to now?) but, Pi does seem to be quite random when taken 1 digit at a time.

Random List of numbers in C

I have just started a C programming course and so far have only done the basics like printf, read a little on variables etc on the course book. The teacher has tasked us with writing a program that will take a value entered by the user, this will be the number of students in the class (25 at the moment but can be variable). It will then list the number of students randomly and place them in 3 columns. The purpose is to sort students into groups of 3 randomly, then display on the screen in columns.

Hash Algorithm Randomness Visualization

I’m curious if anyone here has any idea how the images were generated as shown in this response: Which hashing algorithm is best for uniqueness and speed?

Is code that terminates on a random condition guaranteed to terminate?

If I had a code which terminated based on if a random number generator returned a result (as follows), would it be 100% certain that the code would terminate if it was allowed to run forever.

How to create a random generator

How could a random generator be implemented?

What is the difference between _Procedural Generation_ and _Random Generation_?

Today, I got into an argument about the term “procedural generation”.

Randomly select from list with increased odds

I have a list of entities. Every entity contains a number that holds how many times the entity has been selected. I need to make a function that selects n (say 25%) of the entities, randomly. What I want to do is increase the odds for entities that have been selected the least times. Suppose after 5 runs the times the entities have been selected can be anywhere from 0 to 5. But I don’t want to have such a spread. I want the times the entities are selected more or less to be equal.