random number generator from a range for continuos analysis

Question

I can create random numbers from a range using

Random rand = new Random();
int num = rand.nextInt(10);
System.out.println(\"Generated Random Number between 0 to          


        

Answer 1

The easiest way would probably be to:

• put the numbers (0 to 10) in a list
• call Collections.shuffle() on that list
• loop over the list

Something like:

List<Integer> numbers = Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 10);
Collections.shuffle(numbers);
System.out.println(numbers);

You can even provide a random generator for the shuffling operation if the default doesn't suit you.

Answer 2

I do not think this is possible. Try to remember the numbers you already generatedin a list and use it to generate more random numbersuntil you find one that is not in your list.