关于java二维数组的题,请高手讲解一下。答:那个平均分不写了.package tomcat;public class Nume { public static void main(String [] args){ int sum=0;int all[]=new int[20];int ping[]=new int[20];int score[][]={{1,80,61,87,45,78},{2,87,60,89,45,78},{3,87,69,80,45,78},{4,87,69,89,40,77},{5,87...