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How can I randomly select an item from a list in Java? e.g. I have
List<String> list = new ArrayList<String>(); list.add("One"); list.add("Two"); etc.... How can I randomly select from this list using the
Random myRandomizer = new Random(); 
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To get a random value from a table or list in Excel, you can use the INDEX function with help from the RANDBETWEEN and ROWS functions. Note: this formula uses the named range "data" (B5:E104) for readability and convenience. If you don't want to use a named range, substitute $B$5:$E$104 instead.
Use the random. sample() function when you want to choose multiple random items from a list without repetition or duplicates. There is a difference between choice() and choices() . The choices() was added in Python 3.6 to choose n elements from the list randomly, but this function can repeat items.
In order to get a random item from a List instance, you need to generate a random index number and then fetch an item by this generated index number using List. get() method. The key point here is to remember that you mustn't use an index that exceeds your List's size.
Something like this?
Random randomizer = new Random(); String random = list.get(randomizer.nextInt(list.size())); Clean Code:
List<String> list = new ArrayList<String>(); list.add("One"); list.add("Two"); String random = list.get(new Random().nextInt(list.size())); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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