Java 2D array computing set summary, java 2D array set

Java 2D array computing set summary, java 2D array set

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}, {, 22, 25}; int transverse = 0; // horizontal int vertical = 0; // vertical for (int I = 0; I <5; I ++) {transverse = transverse + a [2] [I]; // access through subscript} for (int j = 0; j <5; j ++) {vertical = vertical + a [2] [j];} System. out. println ("5*5 array cross and sum" + (transverse + vertical ));}}

Public class LeftSum {public static void main (String args []) {int [] [] a = {1, 2, 3, 4, 5}, {6, 7, 8, 9, 10 }, {, 15}, {, 20}, {, 25}; int sum = 0; for (int I = 0; I <5; I ++) {sum = sum + a [I] [I];} System. out. println ("5*5 array =" + sum );}}

Public class RightSum {public static void main (String args []) {int [] [] a = {1, 2, 3, 4, 5}, {6, 7, 8, 9, 10 }, {, 15}, {, 20}, {, 25}; int sum = 0; for (int j = 4; j> = 0; j --) {sum = sum + a [j] [j];} System. out. println ("5*5 array =" + sum );}}