public class crosssum {public static void main (String args []) {int [] [] a = {{1,2,3,4,5}, {6,7,8,9,10}, {11,12,13,14,15}, {16,17,18,19,20}, {21,22,25}}; int transverse = 0; // int vertical = 0; (int i = 0; i <5; i ++) {가로 = 가로+a [2] [i]; (int j = 0; j <5; j ++) {vertical = vertical+a [2] [j]; } system.out.println ( "5*5 数组十字和为"+(가로+수직)); }} 공개 클래스 leftsum {public static void main (String args []) {int [] [] a = {{1,2,3,4,5}, {6,7,8,9,10}, {11,12,13,14,15}, {16,17,18,19,20}, {21,22,24,25}; int sum = 0; for (int i = 0; i <5; i ++) {sum = sum+a [i] [i]; } system.out.println ( "5*5 数组 ="+sum); }} Public Class Rightsum {public static void main (String args []) {int [] [] a = {{1,2,3,4,5}, {6,7,8,9,10}, {11,12,13,14,15}, {16,17,18,19,20}, {21,22,25}}; int sum = 0; for (int j = 4; j> = 0; j-) {sum = sum+ a [j] [j]; } system.out.println ( "5*5 数组 ="+sum); }}
