用java实现二维数组(n*n)最大,最小元素,元素之和,两条主对角线元素之...答:public class DoubleArray { public static void main(String args[]){ int array[][]={{1,2,3},{4,5,6},{7,8,9}};int max=array[0][0];int min=array[0][0];int sum1=0;int sum2=0;for(int i=0;i<3;i++){ sum1+=array[i][i];sum2+=array[i][3-i-1];for(...
java中二维数组求每一行的和,把和放在一个新的一维数组中,再求每一行...答:package test.cn.edu.ahstu.www;public class Test6 { public static void main(String[] args) { int[][] arr = { { 1, 2, 3, }, { 4, 5, 6 }, { 7, 8, 9 } };int[] sum = new int[arr.length];float[] avg = new float[arr.length];for (int i = 0; i < ...
java1.编写2个程序,输入字符串,把非英文字母的字符删除,输出删后的字...答:public class Test2 {public Test2(){//1String s="7s中文df*&^$*sh8s7dg4好9ds2";String news=deleteNotCharacter(s);System.out.println(s);System.out.println(news);//2int[][] array=new int[][]{{3,2,3},{2,3,4},{4,5,6}};int length = array.length;for (int i = ...