抖音爆火的隨機點名Java實現原理，沒有連接數據庫

抖音爆火的隨機點名Java實現原理，沒有連接數據庫

import java.util.Random;
public class Array{
    public static void main(String[] args){
        //定義一個數據組來存取數據
        String[] names={"楊穎","楊冪","趙麗穎","迪麗熱巴","唐嫣","唐藝昕","容祖兒","宋祖兒","藍盈盈","蔡卓妍","林志玲","孫怡","宋佳","宋茜","馬蘇","蔣欣","古力娜扎","歐陽娜娜","賈玲","李小璐","江一燕","包文婧","鄧家佳","婁藝瀟","昆凌","馬思純","周冬雨","何穗","李亞男","李沁","應采兒","張天愛","賀敬軒","謝娜","蕭亞軒"};
        //自動生成隨機數
        Random ra=new Random();
        //聲明一個變量來接收隨機數，隨機數不能超過數組的長度
        int b=ra.nextInt(names.length);
        //打印輸出下標是隨機數的內容
        System.out.println(names[b]);
    }
}