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Using shuffle from Collections in Java | Android

From Doc shuffle is used to Randomly permutes the specified list using a default source of randomness. All permutations occur with approximately equal likelihood.

Here is the simple example of shuffle from collections. 
List numbers = new ArrayList<>();
for (int i = 0; i <= 10; i++) {
    numbers.add(i);
}
Log.v(TAG, "Original List: " + numbers.toString());
Collections.shuffle(numbers);
Log.v(TAG, "Shuffled List: " + numbers.toString());
Output:
Original List: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
Shuffled List: [2, 10, 0, 3, 7, 5, 1, 9, 8, 6, 4]
There is also public static void shuffle(List list, Random rnd) which will Randomly permute the specified list using the specified source of randomness.

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Comments

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