java Random class generates a random number

 

A method of packaging:

 

import java.util.Random;

public class RandomUtil {
    /**
     * NextInt (num) generates [0 ~ (num-1)] of the random number, closed interval
     * @Param Min
     * @param Max
     * @return
     */
    public static int getRandomInt(int Min , int Max){
        Random rand = new Random();
        return rand.nextInt(Max - Min + 1) + Min;
    }
}