java 随机点名器

/*
   随机点名器
*/
import java.util.Random;
public class RandomShot{
    public static void main(String[] args){
        String[] str = {"张三","李四","王五"};
        for(int i =0;i<str.length;i++){
            System.out.println(str[i]);
        }
        Random ran = new Random();
        int j = ran.nextInt(str.length);
        System.out.println("========================");
        System.out.println(str[j]);
    }
}