我在课堂上有一个程序任务.我已经理解了重载的基础知识,但我对一点非常困惑.如何仅从我尝试使用的方法输出?那么让我告诉你代码而不是解释.
public class Box {
private int length, width, height;
public Box(int length){
this.length=length;
System.out.println("Line created with length of" + length + ".");
}
public Box(int length, int width){
this.length = length;
this.width = width;
System.out.println("Rectangle created with the length of " + length + " ");
System.out.println("and the width of " + width + ".");
}
public Box(int length, int width, int height){
this.length=length;
this.width=width;
this.height=height;
System.out.println("Box created with the length of " + length + ", ");
System.out.println("the …Run Code Online (Sandbox Code Playgroud) 有人向我指出,下面的陈述不是递归.我认为递归只意味着它会调用自己直到找到答案.什么会导致这种递归?
public static double totalDistance(int[] x, int[] y, String[] city, int i){
double xSub = x[i] - x[i-1];
double ySub = y[i] - y[i-1];
double distance = Math.pow(xSub, 2) + Math.pow(ySub, 2);
distance = Math.round(Math.sqrt(distance));
System.out.println("Distance From " + city[i] + " to " + city[i-1] + " is " + distance + " miles.");
if (i == 1){
return distance;
}
else {
return distance+totalDistance(x,y,city, i-1);
}
}
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这是以下整个代码,以防任何人对正在发生的事情感到好奇......
import java.util.Scanner;
class distance {
public static void main(String[] args) …Run Code Online (Sandbox Code Playgroud) 我想用Javascript 解析这个内容.数据如下所示:
{"ss":[["Thu","7:00","Final",,"BAL","19","ATL","20",,,"56808",,"PRE4","2015"],["Thu","7:00","Final",,"NO","10","GB","38",,,"56809",,"PRE4","2015"]]}
在线的每一个教程都教你如何使用Twitter解析JSON,但我不太确定如何使用JSON进行解析.
我想在一个网站上设置这个以查看NFL团队得分,以获得一个有趣的项目和一个关于解析JSON的良好学习经验,因为我不太关心Twitter的东西.
这可能吗?任何好的教程开始?甚至一些启动代码?
我不断得到一个超出范围异常的索引.不得为非负数且小于集合的大小.
问题是当我检查toRemove计数低于受访者时.那么这个错误是怎么发生的?如果5个在respondents且toRemove只有3个那么这个错误是怎么发生的?
var respondents = RespondentRepository.GetRespondents(UserSession, fieldsToInclude);
// iterate through the respondents. If search query not like results throw the result away.
List<int> toRemove = new List<int>();
for (int i = 0; i < respondents.Count; i++)
{
if (!respondents[i].EmailAddresses.Any())
toRemove.Add(i);
else
{
bool checkSingleEmail = false;
bool checkAllEmails = false;
for (int j = 0; j < respondents[i].EmailAddresses.Count; j++)
{
checkSingleEmail = respondents[i].EmailAddresses[j].Address.ToString().Contains(query);
if (checkSingleEmail == true)
checkAllEmails = true;
if (respondents[i].EmailAddresses.Count == 1 …Run Code Online (Sandbox Code Playgroud) 为什么即使我输入超过6个字符的长度,也只是永远重复?
import java.util.Scanner;
class Password {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("Welcome please enter your username and password.");
System.out.print("Username >>");
input.nextLine();
enterPassword();
System.out.println("Successfully Logged In");
}
public static void enterPassword(){
String password;
Scanner input = new Scanner(System.in);
System.out.print("Password >>");
password = input.nextLine();
checkPasswordLength(password);
}
public static void checkPasswordLength(String password){
int length;
length = password.length();
while (length <6){
enterPassword();
}
checkPasswordLetter(password);
}
public static void checkPasswordLetter(String password){
System.out.println("More checking here to be added");
}
}
Run Code Online (Sandbox Code Playgroud) 编辑 - 版本第一篇文章是confusamagin.我的任务是创建一个密码提示程序.需要检查密码以查看其中是否至少有一个数字和一个字母.密码长度也必须在6到10之间.
我的问题是试图弄清楚如何查看数字和字母是否存在密码.在检查密码区域,我不知道从哪里开始.我不知道怎么看它是否有一个字母和一个数字.我知道如何做或者使用for语句进行计数和检查,但它所做的只是检查它是否包含所有字母或所有数字.
以下是我到目前为止的情况......
import java.util.Scanner;
class Password {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
//------ENTER A USERNAME
System.out.println("Welcome please enter your username and password.");
System.out.print("Username >>");
input.nextLine();
//------PASSWORD AUTHENTICATION BEGIN
String password = enterPassword();
while ( !checkPassword(password) ) {
System.out.println("Password must be 6 - 10 characters long!");
password = enterPassword();
}
//------PASSWORD VERIFY
String passwordverify = enterPassword();
while (!password.equals(passwordverify)){
System.out.println("ERROR - Passwords DO NOT MATCH Re-Enter Passwords Again");
password = enterPassword();
}
//------ACCEPT …Run Code Online (Sandbox Code Playgroud) 我有一个带有8个值的直接数组.我想把它变成一个多维数组.目前它看起来像这样:
array(8) {
[0]=>
int(0)
[1]=>
float(100)
[2]=>
int(0)
[3]=>
int(0)
[4]=>
float(0.5)
[5]=>
float(53.6)
[6]=>
float(32.8)
[7]=>
float(9.4)
}
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使用上面的值我希望数组格式如下:
array[0][0] = 0
array[0][1] = 100
array[1][0] = 0
array[1][1] = 0
array[2][0] = .5
array[2][1] = 53.6
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等等
因此,目标是创建一个循环,并将每2个值设置为数组中的数组.有任何想法吗?
访问Windows azure数据库时,如何在表上的SQL Server Management Studio 2012中输入设计视图?

我正在使用Azure移动服务来执行推送通知。我创建了一个推送通知服务总线。当我尝试通过REST服务连接到该服务器时,得到以下响应:
404No service is hosted at the specified address. TrackingId:dfc9aea1-e229-4eb7-b393-c8cd6bce258d_G19,TimeStamp:11/3/2014 8:39:21 PM
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POSTMAN请求看起来像这样,它重复了这个问题:

由于该服务在那里,如何进一步解决此问题?我想念什么?
我试图从使用Linq的数据库中选择.我试图重现的查询是:
"Select * From Avatars Where userId IN (1, 2, 3)"
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如果我有一个userIds列表,如何用lambda编写.
我卡在哪里!! 是和有一个userIds列表:
context.avatars.Where(a => a.userId == !!(userIds)!! )
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