java random usage

import java.util.Random;

Random rand = new Random();
int maxNumber = 10;

int randomNumber = rand.nextInt(maxNumber) + 1;

System.out.println(randomNumber);

import java.util.Random;

Random rndm = new Random();
int mnmbr = 10;

int rndNumber = rndm.nextInt(mnumber) + 1;

System.out.println(rndNumber);

int rand = ThreadLocalRandom.current().nextInt(x,y);