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• How to generate a random number, then display it on screen?

  - by Dan

  Ok, im fairly new to android but i have managed to teach myself the basics, i am making an app where you press a button , and a new screen opens and it shows a randomly generated number, the only problem is i dont know how to generate and display the random number, i have been searching the web for ages and have only found little snippets of…

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• How do you make a function read form a txt file and store random lines in a variable?

  - by user309716

  How do you make a function read form a txt file and store random lines in a variable? It will be run over and over in a foreach loop. The language is PHP. Im a new coder so I don't know things like this off the top of my head.

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• Can information encoded with a one time pad be distinguished from random noise?

  - by Robert

  I understand that the cyphertext from a properly used one time pad cypher reveals absolutely no data about the encrypted message. Does this mean that there is no way to distinguish a message encrypted with a one time pad from completely random noise? Or is there some theoretical way to determine that there is a message, even though you…

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• How do i generate a random integer between min and max in java?

  - by David

  What method returns a random int between a min and max? Or does no such method exist? what i'm looking for is something like this: NAMEOFMETHOD (min, max) (where min and max are ints) that returns soemthing like this: 8 (randomly) if such a method does exist could you please link to the relevant documentation with your…

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• How to generate a random but unique number and display that number within the source of my image tag

  - by Matthew

  Hello guys, I have done some searching but really haven't found what I'm looking for. What I would like to do is generate a random BUT unique 5 digit number and push whatever number into an img tag on my page. For example when people come to my page this number would generate and get pushed into this image tag: <img…

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• How to get a random letter from a list of specific letters ?

  - by Ivan

  I've started writing some JAVA code and now I want to get a random letter from list of letters given so what should I use for this.

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• how do i display the coordinates of a random triangle in a graph which ranges from +10 to -10 XY axi

  - by sailaja

  Hi how i display the coordinates of a random triangle in a graph which ranges from -10 to +10 in XY axis with the points like A(2,1) etc with arcs in each corner, in actionscript 2.0

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• Can Python's set absence of ordering be considered random order?

  - by Chuim

  Hello people. I'd like to know if the absence of element ordering of the Python's built-in set structure is "random enough". For instance, taking the iterator of a set, can it be considered a shuffled view of its elements? (If it matters, I'm running Python 2.6.5 on a Windows host.)

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• How to pick random (small) data samples using Map/Reduce?

  - by Andrei Savu

  I want to write a map/reduce job to select a number of random samples from a large dataset based on a row level condition. I want to minimize the number of intermediate keys. Pseudocode: for each row if row matches condition put the row.id in the bucket if the bucket is not already large enough Have you done…

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• Can Python's set absesnce of ordering be considered random order?

  - by Chuim

  Hello people. I'd like to know if the absence of element ordering of the Python's built-in set structure is "random enough". For instance, taking the iterator of a set, can it be considered a shuffled view of its elements? (If it matters, I'm running Python 2.6.5 on a Windows host.)

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• API for get a Random Place (YQL!, Google Maps,...)

  - by pcalessio

  Hi, How can I pick a random place from anywhere in the world (but not in sea obviously) using some Service like Yahoo Geo, YQL, Google maps or something like that?? Thanks!

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• How to extract N random different elements from a set of unique elements?

  - by Roman

  I have a set of unique elements (there are not two identical elements). And I would like to extract N random and different elements from the set. What is the easiest way to do it in Java?

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• C++ How I can get random value from 01 to 12?

  - by MicheleIce

  Hi How I can get in C++ random value from 01 to 12? So I will have 03, or 06, or 11?

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• what is the probability that the next random number will equal current one?

  - by I__

  if i do this in a worksheet: =RAND() i also specified that i want only 2 decimal places and for example let's say that rand() = 0.07 what is the probability that when i call this function again i will get 0.07 ?? i know that ideally if we assume 100% randomness, the answer would be 1/ (10 * 10) because there are…

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• How can I get weighted random selections from an array in Perl?

  - by Chaggster

  I need to random some elements from an array. I'm doing that by randomizing the index $array[int(rand(100))]. I want some of the elements to appear more often. How do I do it? I thought of a stupid solution of having those elements duplicated several times in the array, but I'm sure you guys can do better.

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• Shuffle tiles position in the beginning of the game XNA Csharp

  - by GalneGunnar

  Im trying to create a puzzlegame where you move tiles to certain positions to make a whole image. I need help with randomizing the tiles startposition so that they don't create the whole image at the beginning. There is also something wrong with my offset, that's why it's set to (0,0). I know my code is not good, but…

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• Libnoise producing completely random noise

  - by Doodlemeat

  I am using libnoise in C++ taken and I have some problems with getting coherent noise. I mean, the noise produced now are completely random and it doesn't look like a noise. Here's a to the image produced by my game. I am diving the map into several chunks, but I can't seem to find any problem doing that since…

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• Looking for a clear and concise web page explaining why lower bits of random numbers are usually not

  - by Hamish Grubijan

  I am putting together an internal "every developer should know" wiki page. I saw many discussions regarding rand() % N, but not a single web page that explains it all. For instance, I am curious if this problem is only C- and Linux-specific, or if it also applies to Windows, C++,. Java, .Net, Python, Perl. …

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• MySQL Query to receive random combinations from two tables.

  - by Michael

  Alright, here is my issue, I have two tables, one named firstnames and the other named lastnames. What I am trying to do here is to find 100 of the possible combinations from these names for test data. The firstnames table has 5494 entries in a single column, and the lastnames table has 88799 entries in a…

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• PHP rand function (or not so rand)

  - by Badr Hari

  I was testing PHP rand function to write on a image. Of course the output shows that it's not so random. The code I used: <?php header('Content-Type: image/png'); $lenght = 512; $im = imagecreatetruecolor($lenght, $lenght); $blue = imagecolorallocate($im, 0, 255, 255); for ($y = 0; $y < $lenght;…

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• Using a permutation table for simplex noise without storing it

  - by J. C. Leitão

  Generating Simplex noise requires a permutation table for randomisation (e.g. see this question or this example). In some applications, we need to persist the state of the permutation table. This can be done by creating the table, e.g. using def permutation_table(seed): table_size = 2**10 #…

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• How to generate a random unique string with more than 2^30 combination. I also wanted to reverse the process. Is this possible?

  - by Yusuf S

  I have a string which contains 3 elements: a 3 digit code (example: SIN, ABD, SMS, etc) a 1 digit code type (example: 1, 2, 3, etc) a 3 digit number (example: 500, 123, 345) Example string: SIN1500, ABD2123, SMS3345, etc.. I wanted to generate a UNIQUE 10 digit alphanumeric and case sensitive…

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• Why is the compiler caching my "random" and NULLED variables?

  - by alex gray

  I am confounded by the fact that even using different programs (on the same machine) to run /compile, and after nilling the vaues (before and after) the function.. that NO MATTER WHAT.. I'll keep getting the SAME "random" numbers… each and every time I run it. I swear this is NOT how it's…

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• java.util.Random zero argument enquiry

  - by deerb

  I am trying to code a game following instructions contained in an OU TMA document which read: In the constructor, write code to assign a new instance of Random to ran which you should create using the Random class's zero argument constructor Will this code work? Random ran = new…

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• PC powers off at random times

  - by Timo Huovinen

  Short Version After experiencing some problems with Mobo batteries my PC started to power off at random times, the power off is instant and sudden and does not restart afterwards, need help figuring out the cause. Facts: Powers off when PC is playing games Powers off when PC is…

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