====== Math.random() ====== Math.random() double; generate a 'double' random number ===== example of Math.random in java ===== package codereferececomjava; public class CodeRefereceComJava { public static void main(String[] args) { double randomDigit; randomDigit = Math.random(); System.out.println(randomDigit); // random number as double System.out.println(randomDigit*1000+1); //double random number between 1-1000 System.out.println((int)(randomDigit*1000+1)); //double random number between 1-1000 } } === output of Math.random() === 0.362427879998085 363.427879998085 363