数组第二十六课，多维数组练习，矩阵运算

package com.pkushutong.DemoArray;public class Test04 {/** * 打印指定的矩阵 * @param c */public static void print(int[][] c) {for (int i = 0; i < c.length; i++) {for (int j = 0; j < c.length; j++) {System.out.print(c[i][j] + "\t");}System.out.println();}}/** * 矩阵加法 * @param a * @param b * @return */public static int[][] add(int[][]a ,int[][] b){int[][] c = new int[a.length][a.length];for (int i = 0; i < c.length; i++) {for (int j = 0; j < c.length; j++) {c[i][j] = a[i][j] + b[i][j];}}return c;}public static void main(String[] args) {int[][] a = { { 1, 2 ,4}, { 2, 4 ,2} };int[][] b = { { 2, 3 ,1}, { 4, 5 ,1} };int[][] c = add(a, b);print(c);}}