编写一个JAVA程序求一个10行、10列的整型方阵对角线上元素之积。_百度...答:如果矩阵元素的值较大,可以将long改为double。public class Test{ public static void main(String args[]){ int[][] arr = {{1,2,3,4,5,6,7,8,9,10},{2,3,4,5,6,7,8,9,10,1},{3,4,5,6,7,8,9,10,1,2},{4,5,6,7,8,9,10,1,2,3},{5,6,7,8,9,10,1,2...