random « algorithm « Java Collection Q&A

1. Picking a random element from a set    stackoverflow.com

How do I pick a random element from a set? I'm particularly interested in picking a random element from a HashSet or a LinkedHashSet, in Java. Solutions for other languages are also welcome. ...

2. Randomly Generate Letters According to their Frequency of Use?    stackoverflow.com

How can I randomly generate letters according to their frequency of use in common speech? Any pseudo-code appreciated, but an implementation in Java would be fantastic. Otherwise just a poke in the ...

3. Java algorithm for random class that chooses from two loops    stackoverflow.com

I have to make my program choose randomely between two sets of numbers (original & complement) but there are 5 sets of this loops. How can i assign for the program ...

4. about random values    stackoverflow.com

Possible Duplicate:
Getting N random numbers that the sum is M

5. storing random values in arrays considering duplicates    stackoverflow.com

This a new version of this post in order to isolate the programming question from the probability question. I want to store a number of e.g. 25 randomly generated numbers ...

6. How to Test if a Deck of Cards Has Been Shuffled Enough in Java    stackoverflow.com

I have to test and see if this method has shuffled a deck of cards. Here if the code for the actual shuffling part.

 public void randomShuffle ...

7. Random String Detection    stackoverflow.com

I need to check if a string is fairly random without performing frequency analysis because it will be too time consuming. Is there such algorithm already out there? I am building ...

8. Effectively to find the median value of a random sequence    stackoverflow.com

Numbers are randomly generated and passed to a method. Write a program to find and maintain the median value as new values are generated. The heap sizes can be equal or the ...

9. Algorithm for incrementing a String in a non-obvious manner    stackoverflow.com

I want to create random-looking 5 or 6 character alpha-numeric strings, something like:

Vg78KY

10. Implement random search algorithm in java    stackoverflow.com

I'm tryin to implement a simple "random search algorithm" in Java here's a piece of the code: //execute the algorithm

    double bestSolution; //INITIAL SOLUTION!
    Vector bestVector=null;

  ...

11. Lucene 2.9.2: How to show results in random order?    stackoverflow.com

By default, Lucene returns the query results in the order of relevance (score). You can pass a sort field (or multiple), then the results get sorted by that field. I am looking now ...

12. Array shuffling not working    stackoverflow.com

I am trying to write code to shuffle an Array without using Collections. My shuffle code the Amounts

private double amounts[] = { 0, 0.01, 1000000, 25, 250000, 75, 50, 1000,
  ...

13. Java: Random element from the most popular category    stackoverflow.com

I need to find the most effecient way to find a random element from the most popular category From

4 Cheese
1 Olive
2 Mushroom
4 Ham
2 Chicken
4 Salad

14. [Ask] java.util.Random Algorithm? "    coderanch.com

15. Algorithm to generate random token ids.    coderanch.com

Are you using truly random numbers (which entail possible duplications) or do you want random sampling from a diminishing population, in which case your values will be unique? For random sampling from a diminishing population, put values into a List (probably via a Set to avoid duplicates) and remove the value selected; the List will gradually become smaller, so your random ...

16. Algorithm for filling random polygons    java-forums.org

Hi, I have read this trail a little bit, but it's very difficult and non-analytical. It could not help me at all. So, I am not able to write down a code myself, because I am a newbie in java graphics and I know java only a little as far as I can remember from my latest exams.

17. Random Moving Algorithm    forums.oracle.com