随机点名源代码

import java.util.Random;
class Demo111 {
      public static void main(String[] args) 
      {
         String[] str={
               "A","B","C","D","E","F","G","H"
         };
         Random r=new Random();
         int index=r.nextInt(str.length);
         System.out.println("点到了"+str[index]);

      }
}