抖音爆火的隨機點名Java實現原理，沒有鏈接數據庫

抖音爆火的隨機點名Java實現原理，沒有鏈接數據庫

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","應採兒","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]); } }