Question

Question: What are the problems with the random number generator that we have used from the java.util.Random class and method int n = rand.nextInt(6)+1? What other methods there are that producing random number generators and what's the difference?

Answer 1

in the above line n = rand.nextInt(6) +1 in this statment we cannot generate the random number 0 as one is always added in the rand.nextInt result,also rand.nextInt(n) can only generate random numbers in between 0 (inclusive) and n(excluded). We cannot generate random ineteger in range direclty using rand class . The following are the different ways to generate random number in java

1) Math.Random() gives double from 0.0 to 1.0

(int) (Math.Random()*((high-low)+1) +min;

2)Random.ints java.util.Random

Random R = new Random();

int number = R.ints(min,(max+1)).findFirst().getAsInt();