JAVA

java generate random id

String id = UUID.randomUUID().toString();

how to generate random id in java

import java.util.UUID;
public class UUIDExample.
{
public static void main(String[] args)
{
UUID uuid=UUID.randomUUID(); //Generates random UUID.
System.out.println(uuid);
}
}

Java random number generator

Random random = new Random();
long v1 = random.nextInt();
long v2 = random.nextInt();
for (int i = 0; i < 65536; i++) {
    long seed = v1 * 65536 + i;
    if (((seed * multiplier + addend) & mask) >>> 16) == v2) {
        System.out.println("Seed found: " + seed);
        break;
    }
}