Java get random index from array

Random.choice in java

String[] available_cards = {"1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Queen", "King", "Jack", "Ace"};  
java.util.Random random = new java.util.Random();
int random_computer_card = random.nextInt(available_cards.length);
System.out.println(available_cards[random_computer_card]);

Source: stackoverflow.com

Java get random index from array

private int getRandomIndex(int arrayLength) {
  Random r = new Random();
  return r.nextInt(arrayLength);
}

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