Java Utililty Methods UUID Create

List of utility methods to do UUID Create

  1. HOME
  2. Java
  3. U
  4. UUID Create

Description

The list of methods to do UUID Create are organized into topic(s).

Method

StringgenerateId()
Generates and returns unique identifier. 
return UUID.randomUUID().toString();
MapgenerateRandomMap(int count)
Generates random map. 
Map<String, String> randomData = new HashMap<String, String>();
for (int i = 0; i < count; i++) {
    String randomKey = randomAlphanumeric(generateRandomNumber(16, 32));
    String randomValue = randomAlphanumeric(generateRandomNumber(16, 32));
    randomData.put(randomKey, randomValue);
return randomData;
StringgenerateRandomName()
Generates random name that consists of letters, numbers and underscores 
return UUID.randomUUID().toString();
StringGenerateRandomSlug()

Generates a pseudo random 32 character string 

UUID uniqueSlug = UUID.randomUUID();
return uniqueSlug.toString().replace("-", "");
StringgenerateRandomString(int length)
Generates a random string of length characters. 
String randomString = "";
while (true) {
    if (randomString.length() >= length)
        return randomString.substring(0, length - 1);
    else
        randomString += java.util.UUID.randomUUID().toString().replaceAll("-", "");
StringgenerateRandomTableName()
generate Random Table Name 
String tableName = "table" + UUID.randomUUID().toString().toLowerCase();
return tableName.replace("-", "");
StringgenerateRandomUUID()
generate Random UUID 
long id1 = System.currentTimeMillis() & 0x3FFFFFFFL;
long id3 = randomLong(-0x80000000L, 0x80000000L) & 0x3FFFFFFFL;
return __convert(id1, 6, __chars64) + __convert(id3, 6, __chars64).replaceAll(" ", "o");
StringgenerateRandomUUID(final int length)
generate Random UUID 
UUID uuid = UUID.randomUUID();
char[] uuidChars = uuid.toString().toCharArray();
StringBuilder builder = new StringBuilder();
for (int i = 0; i < length; i++) {
    builder.append(uuidChars[i]);
return builder.toString();
StringgenerateRawUUID()
Generate a raw identifier used in PLUS object IDs 
UUID u = UUID.randomUUID();
return u.toString();
StringgenerateRequestId()
Returns a random 32 character request id 
String uuid = UUID.randomUUID().toString();
String requestId = uuid.replace("-", "");
return requestId;