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Random data out of a list.
Say for example i create an array in the form,
how can I get an element of the list randomly for use, and then remove it from the list.
//Array List... ArrayList<Integer> list = new ArrayList<Integer>(); //Data inside the list are the numbers from 0-9 for(int i = 0; i < 10; i++) list.add(i);
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Re: Random data out of a list.
Just get a random number and remove the element at that index, as follows:
int rand = new Random().nextInt(list.size()); list.remove(rand);
Another alternative would be to use Collections.shuffle(List<?> list) to shuffle your ArrayList and pick the first few from the ArrayList.
Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code
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