Hot to remember random value from array?

Hot to remember random value from array?

   public int getRandomValue(){
    int[] second = bubbleSort(convertToArr(generateUnique(10)));
    int rnd = new Random().nextInt(second.length);
    return second[rnd];
}

Above code return new random value with every call of this method.

How to mememorise random value? And not generate new one, I need this value for using it in further.