1. How to have unique random number? stackoverflow.comThis is how i am generating a unique no in between 1 to 6 and getting appropriate images from the drawable folder.

2. Make unique id of just numbers? stackoverflow.comIn a program, I am trying to make unique id numbers. I used this way:
But my professor said this:
Another ... 
3. Creating unique random numbers stackoverflow.comI have created the following method so as to create unique random numbers . (This unique values belong to the nodes of a tree):

4. 12 Digit unique random number generation in Java stackoverflow.comi was working on an application where we need to generate some unique number and practically there was no predefined restrictions so was using java UUD generator and was working fine. Now ... 
5. Generating 10 digits unique random number in java stackoverflow.comI am trying with below code to generate 10 digits unique random number. As per my req i have to create around 5000 unique numbers(ids). This is not working as expected. ... 
6. Generating a unique random number each time i run my application stackoverflow.comIn my application, i want to generate 9 digit random numbers such that they r unique. Only one 9 digit random number should be generated each time i run the application and ... 
7. Number of Unique, Valid Tic Tac Toe Boards stackoverflow.comI'm doing a project regarding Tic Tac Toe and for that I have to generate all the possible unique, valid tic tac toe boards that exist in the game. The number I've ... 
8. creating unique yet ordered ,order number for a customer's order stackoverflow.comIn my 
9. java  making a set of functions all return unique values without hardcoding numbers? stackoverflow.comI have a set of functions and I would like each one to return a different prime number. I don't care which function returns which prime, but they must all be ... 
10. Generating Unique Random Numbers in Java stackoverflow.comI'm trying to get random numbers between 0 and 100. But i want them to be unique, not repeat in sequence. For example if i aget 5 number. They must be ... 
11. selecting unique numbers coderanch.comA map would be a poor option for the stated objective. I am not saying you cannot use a pair of socks as pot holders, rather, that you should not. What are you mapping? Answer: nothing. Given an array of int you can generate a unique list as follows: Set 
12. how to generate random unique alphanumeric numbers coderanch.comAnother idea is to create an array of values you want to include in the password. Randomly generate a valid array index, then pull that value from the array. See this page for an example. If you want to ensure that at least one number and one letter are included, there are a couple of things you can do: 1) simply ... 
13. How to Generate Unique Random Numbers? coderanch.comHi all, How to generate unique random numbers with out repetitions. i have a values between 1 to 9. i want to generate 5 unique random numbers from this 1 to 9. if i am using this code then it will generate a duplicate random numbers. Can any one please solve this problem and give me the solution code. import com.sun.crypto.provider.RSACipher; ... 
14. how to generate unique number? coderanch.comIf you are saving this info to a file or files you could generate a random number or better yet to insure no duplicates use the time and date as the filename. If you have the user creating multiple files at one time then you could use the date + time + a number representing that files contents (eg 11180105309 where ... 
15. generating unique numbers coderanch.comHello ! I'm not sure, but I think you mean a sequence of numbers in an arbitrary order (a so called permutation). A possibility to do so is to create an intarray with the numbers in the correct order. Something like int n=20; int[] numbers = new int[n]; for (int i=0; i 
16. Creating a unique random number... coderanch.comBasically I have an array full of objects customer, one attribute a customer must have is a unique account number. //make me a random number generator called 'generator' Random generator = new Random(); //Set account number to random number AccountNumber = generator.nextInt(89999); //Make sure number is 5 digits so if randome number is, 0 + 10000 = 10000 accountNumber = accountNumber ... 
17. Unique number generation in JdK1.4 coderanch.comHello All My guys here managed to get the unique number wiht Math.random(). Till now (around 3 years) it is working fine, now we got an issue which shows two sessions (not sessionId, we are using this unique number for other reasons) are running with same unique number. The problem here is, I can't use UUID class because my application is ... 
18. Help needed to generate a unique random number without importing any third party jar's. coderanch.comYou can do it by using Math.random method. You have to maintain a list of all the numbers you have generated and used. Before returning the random number you have to check that it is already present in the list or not? If it is in list then you have to generate the function again. HTH 
19. Generating Unique Random Numbers in JAVA coderanch.comHi, I am new to Java i have a assignment and that is i need to generate 1,00,00,000 (one crore ) random numbers and which should be seed based random numbers. I have tried to write the program using java.util.Random; package and also using the setSeed method. But here i am getting duplicate numbers. For that i am first generating the ... 
20. Identifying unique numbers in the list. coderanch.comHi All, Suppose I have a list with numbers {1, 2, 3, 2, 1, 2, 4, 3, 1}. Let these numbers be any any data structure like array/arraylist or anything. Whats the EFFICIENT way to find out unique numbers in the list. i.e., {1, 2, 3, 4} And the constraint is without using any builtin functions. Can you please analyze and ... 
21. Unique Random Number Generator : Please suggest improvements to this code coderanch.comI am a newbie to java and I made this little program called "UniqueRandom". Please suggest ways to improve this code or point out any bad practices, errors etc. INTRO : Aim : This class CAN be used to generate each number from a given range only once in a random order, ie not necessarily increasing or decreasing. ______________________________________________________________________________________________________________________________________ HOW IT ... 
22. how to generate a unique number from a series of numbers coderanch.comHi, I am developing a application, which has some int manipulations. Thing is i am getting input values as 31958379002001000, 31958379002001000, 31898379002001000, 31828379002002000, 31828379002002000 etc. they are not fit in int. but i must use int only. so, I want to generate a distinct unique number for each of the big input number shown above and display them in response in ... 
23. random generator for unique numbers go4expert.comPresumably you mean something like this: Code: bool is_unique( int n) { // check array } int get_unique_person() { Random randomPerson = new Random( System.nanoTime()); int no_persons = persons.length; int max_tries = 70; int cnt, person; for( cnt = 0; cnt < max_tries; ++cnt) { person = randomPerson.nextInt( no_persons); if( is_unique( person)) break; // exit loop if it IS unique } ... 
24. Arbitrary number of objects, each with a unique name. javaforums.orgI need to generate an arbitrary number of objects, and each one has to have a unique name. There has to be a better way of doing this than creating a massive arraylist of objects, all typed out by hand... There could potentially be a hundred! It doesn't seem like there is any way of assigning the value of a String ... 
25. Unique Random Numbers in Java forums.oracle.comI have know know how can i get unique random numbers without mentioning the range. I don't know how big N is .. but N should have random numbers ... What would i do them .. shuffle is good if u know N.. but what if i am not sure how big my collection might become ?? 
26. How to generate 14 digits unique number forums.oracle.comHi friends, i have to generate 14 digits number in one of my application ,the number should be an unique number . firstly i was trying to used System.currentTimeMillis(); but this gives 13 digits ,even though it does not give an unique number. next i tried System.nanoTime() ; this method is really interesting sometime it generate 13 digits and sometime it ... 
27. Generating a unique string of numbers forums.oracle.comIt has been my experience that HashSet is deterministic, so although there is no particular order, the order will always be the same given the same conditions. I would do it by making an ArrayList of the nine digits, then randomly selecting one digit and removing it. Repeat until all are gone. 
28. How to generate unique random numbers forums.oracle.com1st random number generated  possibility of 1  6 showed up. Say 5 is picked. 2nd random number generated  possibility of 1, 2, 3, 4, 6 only. Say 2 is picked. 3rd random number generated  possibility of 1, 3, 4, 6 available. Say 1 is picked. 4th random number generated  possibility of 3, 4, 6 left. Say ... 
29. How to Generate Unique Random Numbers? forums.oracle.com 
30. Generate an unique number from String forums.oracle.com 
31. Generating unique random numbers forums.oracle.comHi, Can any one help me in generating 10 random numbers which are nonduplicate ranging between 1 to 15? I tried to some extent but getting confused in validating for duplicates? import java.util.*; public Class TestRandom { public static void main(String args[]) { Random r = new Random(); int count = 0; int temp = 0; int arr[] = new int[16]; ... 
32. Unique numbers/ IDs forums.oracle.comHello, I need some way of creating unique numbers or IDs as part of a file name. Currently we are using hashCodes, which sometimes get duplicated when the system is restarted. I read something about java.rmi.dgc.VMID; can this be used to generate completely random numbers/IDs, or do I need to use something like "JUG"  Java Uuid Generator Thanks in advance ... 