What is random() in java?

Answer 1

Hello, PRASHANT KUMAR BHARDWAJ !
The java.util.Random class is a pseudo-random number generator.

The class is represented by two designers

Random () - creates a number generator that uses a unique seed

Random (long seed) - allows you to specify the initial number manually

Since the class creates a pseudo-random number, then by specifying a seed, you define the starting point of the random sequence. And you will receive the same random sequences. To avoid such a coincidence, the second constructor is usually used using the current time as the initiating value.

Methods:

boolean nextBoolean () - returns the next random value of type boolean

void nextBytes (byte [] buf) - fills the array with randomly generated values

double nextDouble () - returns the next random value of type double

float nextFloat () - returns the next random value of type float

Answer 2

https://dzone.com/articles/random-number-generation-in-java

this help you

Answer 3

It's method of Math