Java Utililty Methods ThreadLocalRandom

return RANDOM.nextInt(limit);

return getThreadLocalRandom().nextInt(n);

return ThreadLocalRandom.current().nextInt(r);

return ThreadLocalRandom.current().nextInt(1, 1000);

Integer selectedElement = null;
if (list != null && !list.isEmpty()) {
    int listSize = list.size();
    int randomIndex = ThreadLocalRandom.current().nextInt(0, listSize);
    selectedElement = list.get(randomIndex);
return selectedElement;

Set<Integer> integers = new HashSet<>();
int maxNumbers = (endNumber - startNumber) / pageSize;
if (numNumbers > maxNumbers) {
    numNumbers = maxNumbers;
while (integers.size() < numNumbers) {
    int i = ThreadLocalRandom.current().nextInt(startNumber, endNumber + 1);
    i = (i / pageSize) * pageSize;
...

Random random = ThreadLocalRandom.current();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 5 + random.nextInt(15); i++) {
    char c = chars[random.nextInt(chars.length)];
    sb.append(c);
return sb.toString();

StringBuffer sb = new StringBuffer();
for (int i = 0; i < len; i++) {
    int num = ThreadLocalRandom.current().nextInt(10);
    sb.append(num);
return sb.toString();

return getRandomString(length, ThreadLocalRandom.current());

int randomIndex = ThreadLocalRandom.current().nextInt(targets.size());
return targets.get(randomIndex);