Generate Random Numbers in Java

RandomNumbers.java

import java.util.Random;
import java.util.concurrent.ThreadLocalRandom;

public class RandomNumbers {
    public static void main(String[] args) {
        for (int i = 0; i < 100; i++) {
            System.out.println(getRandomNumber_4(4, 9));
        }
    }


    static int getRandomNumber_1(int min, int max){
        Random random = new Random();
        int range = max - min;
        return random.nextInt(range) + min;
    }

    static int getRandomNumber_2(int min, int max){
        Random random = new Random();
        return random.ints(min, max)
            .findFirst()
            .orElse(0);
    }

    static int getRandomNumber_3(int min, int max){
        int range = max - min;
            int rand = (int)(Math.random() * range) + min;
            return rand;
    }
    static int getRandomNumber_4(int min, int max){
      return   ThreadLocalRandom
            .current()
            .nextInt(min, max);
    }
}