Coming from the C++ world here, thus the nature of the question... I want to use a single SecureRandom generator in a Java application, but I need several instances of a class to store a reference to it in the constructor, rather than copies. So, public class MyClass { private SecureRandom random; public MyClass(SecureRandom _...
Hey guys, i have trouble generating unique random numbers using js. Can someone lend me a hand? ...
I'm creating a bot in Shell Script: # Array with expressions expressions=("Ploink Poink" "I Need Oil" "Some Bytes are Missing!" "Poink Poink" "Piiiip Beeeep!!" "Hello" "Whoops! I'm out of memmory!") # Seed random generator RANDOM=$$$(date +%s) # Loop loop loop loop loop loop ... while [ 1 ] do # Get random expression... select...
I have a case where I need to select a random item, but I don't know the total number of items and I don't want to build a huge array then pick an item out. For example, this is what I have right now: List<string> items; while (true) { string item = GetNextItem(); if (item == null) break; } int index = random.GetNext(0, ...
I need to run a MonteCarlo simulations in parallel on different machines. The code is in c++, but the program is set up and launched with a python script that set a lot of things, in particular the random seed. The function setseed thake a 4 bytes unsigned integer Using a simple import time setseed(int(time.time())) is not very good ...
I'm sick of waiting for my developers to fix this, so I decided to ask you guys. I'm trying to modify what they've already given me, so sorry if the setup doesn't make a whole lot of sense. I could probably change it but want to keep as much of the existing table setup as possible. I've got a MySQL table with a bunch of entries in it, a...
Hello! I am taking a course on programming, and we're using C++. We had an assignment where, at some point, we needed to code a function that would return a random number in an [upper, lower] interval. I used the following: lower + (int) (upper * (rand() / (RAND_MAX + 1.0))); I did not forget to change srand by using srand((unsigned ...
I'm creating a game where players can make an alloy. To make it less predictable and more interesting, I thought that the durability and hardness of an alloy should not be calculated by a simple formula, because it will be extremely easy to find extrema, where alloy have best statistics. So the questions is, is there any formula for a f...
Ok right , i asked how to create a random number from 1-100 for android and i came to this TextView tv = new TextView(this); int random = (int)Math.ceil(Math.random()*101); tv.setText("Your Number Is..."+ random ); What this does is create the default kinda "hello world" style text view and says "Your Number Is.... [Th...
Dear All: I need to generate a series of N random binary variables with a given correlation function. Let x = {xi} be a series of binary variables (taking the value 0 or 1, i running from 1 to N). The marginal probability is given Pr(xi = 1) = p, and the variables should be correlated in the following way: Corr[ xi xj ] = const |ij| (...
hi everybody Is there any possible code for getting output in php(all possible word from word dictionary) for example....for word "werflo" flower fowler reflow wolfer ...
Is it possible to print a random number in C++ from a set of numbers with ONE SINGLE statement? let's say the set is 2, 5, 22, 55, 332 i looked up rand, but I double it's possible to do in a single statement ...
Hi, I want to generate some test data so for each row in a table I want to insert 10 random rows in another, see below: INSERT INTO CarFeatures (carID, featureID) SELECT C.ID, F.ID FROM dbo.Cars AS C OUTER APPLY ( SELECT TOP 10 ID FROM dbo.Features ORDER BY NEWID() ) AS F Only trouble is this returns the same value...
I work with a lot of random numbers to create constantly shifting textures. I'm getting tired of doing things like: ((rand() % 1000) / 10) + 100 when I really want something like [randomUtils randomNumberBetween:100 and:200] Additonally, I'd like to be able to manipulate weights of the randomization, so that, for example, my val...
srand(time(NULL)); for(i = 0; i < n; i++){ for(j = 0; j < (n-1); j++){ a[i][j] = rand(); } } I try to generate random numbers, but they are the same... What should i do? Array declaration: int** a; int i; printf("Enter array size: "); scanf("%d", &n); a = (int**)calloc(n, sizeof(...
I understand how standard random number generators work. But when working with crytpography, the random numbers really have to be random. I know there are instruments that read cosmic white noise to help generate secure hashes, but your standard PC doesn't have this. How does a cryptographically secure random number generator get it...
Hello i have a question on picking random entries from a database. I have 4 tables, products, bids and autobids, and users. Products ------- id 20,21,22,23,24(prime_key) price........... etc........... users ------- id(prim_key) name user1,user2,user3 etc bids ------- product_id user_id created autobids -------- u...
I'm trying to take the output of arc4sin and put it into a label. (EDIT: You can ignore this and just post sample code, if this is too irrelevant.) I've tried: // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [super viewDidLoad]; NSString *number = [[NSString...
i want to create a quiz application. the questions should be randomly selected from a word/text file(which contains some 20 questions). the application is in c#. syntax plz... ...
I would like to randomly iterate through a range. Each value will be visited only once and all values will eventually be visited. For example: class Array def shuffle ret = dup j = length i = 0 while j > 1 r = i + rand(j) ret[i], ret[r] = ret[r], ret[i] i += 1 ...