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如何在Java中的事件处理程序中编写服务器代码

I am creating a socket program in which a screen appears to ON an OFF the server. I have an event handler but I couldn't create a server sockets inside that event handler. Here is my code: public

在斯卡拉,你如何利用未来的价值呢?

I'm trying to use values generated by a Scala Future: val x = Future.sequence( for (i <- 0 until 100) yield Random.nextInt(arraySize) ) For each value of x, I want to index into an array: val

基于已验证的用户/用户标识显示对象

I am trying to limit the number of objects the user can see based on his/her user id. I am getting an the object Usergame where it's a linked table for User and Games. So based on the games the user

MunGDB:如何在一个集合中使用多于一个用户输入的PARAM来查找记录?

I want to edit this function so that i can get records using the user and the dateCreated. here is my function : public getTaskWithID(req: Request , res:Response){ Task.findById(req.

使用Java脚本在HTML页面中显示CSV数据

cvs data fileI am try to display the csv file data in a html table. I can display the data but in a incorrect formate. I tried to split the column with ",". But the problem has a data in of the row

如何在CSS中正确实现表的响应?

I am coming to a problem where my table is not being responsive even on mobile. Is there a way to make my table too look responsive on mobile and on web perfectly. Even when I resize my browser I see

使用LINQ返回子对象

I'm learning many-to-many joint tables within EF Core and LINQ. I have the following model: public class ProjectManager { public int ProjectID { get; set; } public Project

MySQL连接器返回

I have been trying to connect my program to a non localhost database since it will be used on other computer but I keep getting a Communications Link Failure. This is the Error I'm getting:

如何在字典列表中添加字符?

I'm creating a list of lists in python (like a dictionary one) and I want to put a simply character in where I want to. dictionary = [ ['','',''], ['','',''], ['','',''], ] I

导入文件到Excel

I'm trying to import a decent size file into Excel (around 8000 lines) but my format has proved difficult to work with. The file looks like the following Alpha 1 2 3 Beta 3 4 Charlie 1

谷歌COLAB中本地笔记本的链接

I have a notebook which links to other, local notebooks. Something like this: This is a series of tutorials about X. Link to [Tutorial 1](tutorial1.ipynb) Link to [Tutorial 2](tutorial2.ipynb)

散列咸电子邮件用于认证-好或坏的做法?

Is hashing + salting of emails not a normal thing to do? Like in a data breach you wouldn't be able to know who is registrered to the service since every field is hashed + salted? Is there any cons to

在保持授权数据本地的情况下,是否可以从外部源进行认证?

I'm currently working to develop a companion web application to a main web app. The main web app has a regular ASP.Net identity provider, which I have full access to and can create endpoints against.

基于连接到另一个表的字段聚合不正确求和

I have the below query where I am trying to calculate a percentage based on the SUM of G.MERCHANDISE_AMT divided by the SUM of D.MERCHANDISE_AMT. The PO_ID in this table contains 2 line numbers, and

如何使用AARYAY公式计算谷歌表中每条线的余额

I have a Google sheet which has two columns. Column F has a numeric value in it and I want column G to contain the value of column G in the previous row plus the value of column F in the current row,

I plan to buy desktop below CPU : ryzen 2600 RAM : Samsung ddr4 16gb 21300 VGA : MSI 2080 gamingX It's enough to run 25 selenium? Selenium don't support threading, so I will run 25 selenium

在生产中预加载JS-字体

Everything is fine during development - preload has fonts, images, scripts. But when I build production, the fonts do not fall into preload. There is everything except fonts. render: { http2: {

通过将返回布尔(1/0)与给定值在2D数组中进行比较来评价分类器的成功

I have an array "D" that contains dogs and their health conditions. The classifier() method returns either 1 or 0 and takes one row of the 2D array as input. I want to compare the classifier result to

如何在Android工作室中使用FixBasic在应用程序中添加YouTube API?

I've been researching around the internet and i didn't found too many things about YouTube API + Firebase, so here's my question. I am using Android Studio with Firebase as a database and want to

当语句有{},如果语句没有{}时,有什么不同?

Im practicing with Xamarin forms and I was doing a simple exercise and when I run the program the button did not work . I checked my code and I decided to remove the { } from an if statement and

switch(answer1){ case "draw": player1.add(deck.get(0)); deck.remove(0); break; case "flip": battlefield = deck.get(0); deck.remove(0); break;

COMO PuedoMILTR LOS DATOSE互联网耗材EN MB EN UNA ReaveMcIL,Android工作室?

Estoy desarrollando una aplicacion en Android Studio y necesito medir cuantos megasbyte se esta consumiendo en el smartphone desde que se inicie la aplicacion, o mejor, desde que se encienda el movil (

如何修复这个加法()

i'm a writing a code about snake game but gave me this error i using a python 3.7.2 and pygame 1.9.0 full code: https://pastebin.com/rG56cPga?fbclid=IwAR1oJLvqY3v50FzmVEwPC-DbdKswNd5aWN-

在PDF中迭代遍历Python字符串的起始和结束

I have a pdf document and I need to extract the pdf starting from the page it contains the string and ending till the string contains below is what i wrote but need more reusable and generic way

为什么WTFras在第一次加载页面时有未绑定字段?

I have the following form classes: class FieldsRequiredForm(FlaskForm): class Meta: def render_field(self, field, render_kw): render_kw.setdefault('required', True)

ES6 AXIOS对数组的响应[复制]

I am new to ES6. I'm trying to get response from a axios api to a array, so I can use the data to show the result on my template. The code look like this: FeedModel.js import axios from 'axios'

存在着一个完整的屏幕?

necesito hacer que una pantalla de login me abra en pantalla completa cuando le de click a un input type button

插入2个表中的左连接

I know this is very simple question. It worked for me for first query. But I am not sure why it is not working for second quesry. There are 3 tables in my case and I want to make 4th table using LEFT

如何获得主动租金

I want to get active rent's for given month. I have a table where i have rent details. In that table i have start date, end date and how many months. So when i select a month i want to know what are

汇编中的寄存器、SL和二进制

Im hoping someone can help me through a piece of code that I have as I find it difficult. Assembly language is new to me and I've been reading a book "Practical Malware Analysis" and I find it hard to

.Net Cype 2.1 WebAPI在Chrome上的Windows身份验证中从角7调用HtpStestError返回401错误

Help!!! I have an angular app with POST and GET methods calling different .NET core web apis. GET methods work fine but POST fails with 401 Not authorized error in chrome browser both as localhost

SQL位操作,将第二位更改为0

i have a lot of rows with an bigint(length 20) and i have to change every second last bit to 0. For example i have: 0101 1011 and the result i need is: 0101 1001 The Problem is, the numbers are "

如何完全对齐标签和输入水平?[暂时搁置]

I'm creating a simple form page but the labels and the input field are not aligned. What it looks like now Code

我下载的每一个包裹都送到Acon DA,我可以。

Every time I download any packages like numpy, I can't use them in a text editor like PyCharm. Why does the packages go to anaconda? I really don't know what Anaconda is exactly so I don't want to use

寻找数组内最大和

This is my first post so I think I wrote all for you to help me. I have a given array [-2 -3 4 -1 -2 1 5 -3] so the largest sum would be 7 (numbers from 3rd to 7th index). This array is just a simple

CLR剖析器API:ICORPrimeLeCalBe后撤::异常抛出的GC安全

I was wondering in .net framework profiler, is ExceptionThrown (https://docs.microsoft.com/en-us/dotnet/framework/unmanaged-api/profiling/icorprofilercallback-exceptionthrown-method) guaranteed to not

COBOL:需要帮助找出什么不是数字错误

I'm writing a program in cobol and I'm getting the error message libcob: primes1.cob: 51: 'IN-N' not numeric: ' 1' there are also 2 errors appear, not sure if they matter but they are WARNING

单击两次时更新反应状态

Having an issue with react not updating the state right away on the console.log, i have to click twice on the submit button in order for the console.log to show the updated state i checked this, but

有没有办法在FXRuby制造坡度?如果是这样的话,我该怎么办呢?例子?

Is there a way to create a gradient in FXRuby? If so, how would I implement it? I have tried looking at https://www.rubydoc.info/gems/fxruby/Fox/FXImage and it didn't make much sense to me, I'm

最快复制整数位的方法

What is the fastest way to duplicate the bits of an integer. For example, 17 -> 10001 after duplication: 1100000011

ActudieDrouTe不包含辅助路由的任何参数

When user clicks the edit button, I change the url to /posts/(modal:1/edit) which displays a modal dialog. I need to access the query params of that route to get the id of the post. Params are always

我从服务器获得404,但是我知道在后端(节点.js)中存在API。

I am having Node.js file where in i am creating node APIs to interact with the client side (react). Its working fine with existing APIs, however when i create new APIs, server is throwing 404. P.S:

混乱是cTime.h,Time.h,sys/Time.h

I hope some Linux die-hard can answer me how I should write portable (POSIX) code when working with time functions. Some SO threads suggest that including ctime would be the right thing to do when

在Excel VBA中使用参数进行表SQL查询

I am trying to create an SQL query in Excel VBA that would create a table in Access based on parameters of a cell in Excel. Usually I could use an execute query to run a pre-built query in the

用Python和操作符进行辅助

I'm trying to create a program similar to battleship in python (hobbyist)I've tried a few things and I can't seem to figure out why this program returns miss even when the conditions match. What am I

如何启用ORBUS ISEver中的视图数据下载?

Is there a setting that allows people to download the contents of a view output? I see it greyed out but don't how to enable it to be downloaded download it. This is Iserver 2017

在静态方法中实例化的匿名内部类是否可以访问包含类的实例成员?

I want to understand better the visibility of instance fields of containing class to an Anonymous inner class (AIC). There have been lots of talks that AIC has an implicit reference to the containing

角度材料:如何在垫板选项列表顶部选择一个搜索输入

Under my Angular 7 app i'm using a mat-select widget (of Angular-Material) i'm implementing a search bar at the top of the select drowpdown to filter options: <mat-select placeholder="

如何在登录模块中验证不同页面上的特定Web元素

In my application when user login first time then on first page username is displayed. But if user logs out and log in again then a new pages comes with following text. You're signed out now. Click

硒代理IP(change)不工作Firefox,Python

I have a problem with adding a proxy to my firefox selenium browser. I use the code below and change the HTTP ip and port number that I both got from proxy-list.download. When I execute the program

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2019年03月26日14分22秒