Getting random values from an ArrayList

Question

I have a String array:

String [] array={"1","2","3","4","5","6","7","8","9"};

Which I convert into an array list:

 ArrayList<String> al = new ArrayList<String>(Arrays.asList(array));

I want to get a random value from my ArrayList.

is this possible in Android?? Just a quick search on google would have answered your question. — B001ᛦ
– B001ᛦ, Commented Mar 21, 2017 at 11:04
Possible duplicate of How to generate random integers within a specific range in Java? — Manoj Perumarath
– Manoj Perumarath, Commented Mar 21, 2017 at 11:15

miljon · Accepted Answer · 2017-03-21 11:04:58Z

5

Use Random class to do that, argument of method nextInt is the bound on the random number to be returned. It must be positive:

Random random = new Random();
yourList.get(random.nextInt(yourList.size()));

answered Mar 21, 2017 at 11:04

miljon

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Comments

Gibolt · Accepted Answer · 2020-01-17 19:29:26Z

0

myList.random()

random() is a default extension function included in base Kotlin on the Collection object.

answered Jan 17, 2020 at 19:29

Gibolt

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