标签云

微信群

扫码加入我们

WeChat QR Code

Say, the function setX is defined as follows: public void setX(Long l) { .. .. } If the function is called with null value in parameter, then what would happen? Will it caused NPE

I have a dataset in this format with each set of data consisting of a unique id (left) and a supplier (right) [('SPE8ES18V1039', '3G1W3'), ('SPE8ES18V5065', '3G1W3'), ('SPE8ES19P0173', '3MCV6'), ('

SqlCommand command1 = connection.CreateCommand(); command1.CommandType = CommandType.Text; command1.CommandText = "update product set product_qty=product_qty-"+t1.Text; command1.ExecuteNonQuery();

I have a simple react component with only one button, when that button is clicked it makes a api call using fetch, after the success call is calls setState to update the component. in my my-button.

I am trying to use foreach loop in google map script and using it without an error. So I can see the map and markers. No problem with this. But when I try to create an account. I mean try to access to

In most languages I would write declare var1 = undefined if (condition) { var1 = value1 } but in javascript, it seems its allowed to write if (condition) { let var1 = value1 } else { var1 =

First, I am not sure if the title is a clear description of my requirements. I am new to language processing. Problem I require to perform two operations given an input string from a user. 1)

i want to show all details that i create from here, into list as show in the image, but the list that i create, didnt display the roomID, only show the date. here is the code, on how i retrieve the

I begin with the spark array "df_spark": from pyspark.sql import SparkSession import pandas as pd import numpy as np import pyspark.sql.functions as F spark = SparkSession.builder.master("local").

In my project we are running test case on worker nodes but currently I am using headless browser to run those test case. But now I want to have a way so that I can show them the test case running in

So i have this project of recognizing ships from images and i have already done it in python using OpenCV. But now i was told that i have to do it in C#. I know only the basics of that but i am unable

I'm trying to link a program with 2 libraries this way: LNOPT = -Wl,-rpath,$(MKLROOT)/lib/intel64 -Wl,-rpath,/opt/intel/compilers_and_libraries_2019.0.117/linux/compiler/lib/intel64_lin However I

class MyThread extends Thread { public MyThread(String name) { super(name); //setName(name); } @Override public void run() { for (int i = 0; i < 100; i++) {

I am using [disabled]="true" for disable datepicker app.component.html: <div> <angular2-date-picker [(ngModel)]="date" [settings]="settings" [disabled]="true"></angular2-date-picker&

I'm trying to merge all my text files into one file. The problem I am having is that the file names are based on data previously captured in my app. I don't know how to define my path to where the

I have an app that I successfully deployed to heroku, but when I try to access it, I get this screen The log says the following The error I believe is causing the issue is Error: Cannot find

EDIT: I really don't know what just happened right now but I was still looking over the dashboard for some other infos and the statistics just reseted! I'm sorry for posting! For anyone wondering, I

I've implement a ItemTouchHelper.Callback on the way that the buttons became stickey. it's all works fine, but i have a problem. my adapter call notifyDataSetChanged(), and right after that the open

I try to install laravel 5.0/mysql"5.5"/php_version under docker and I can not site in browser and make seeding of app: I have 3 config files: docker-compose.yml : version: '3.1' services:

I would like to create array of all listboxes and access them. I tried to do it using pointers, however my program crashes during runtime with error access violation at address type ControlsCount =

I have an alert dialog and i want to set width and height to it depend on my screen device and not constant like 1300,880. How can i get width and height in non activity and non fragment class?

I am designing an app where I want to display the followers of an Instagram page which isn't private account. How can I get the number of followers of it in my Android App ?

I need to send app invitation message from my app to friends via whatsapp,facebook,hike, with the message and playstore link.I have seen this kind of invitations in other apps like hike,whatscall,..

I have a UserControl and a bunch of controls inside it, there is a ToolStrip control too. I add some buttons to this ToolStrip but in design time when I use the whole UserControl I'm not able to edit

Negative Zero and Positive Zero returns same letter. How does it actually work in Python? Does Python interpret it as Signed zero? Code here: string = "love" print string[-0]

Button button1 = new Button(this); // How to do it with for loop?

how can i change this with my own logo here my pict i have to search but until now I haven't got the solution

I am trying to serve web pages through Apache 2.4.18 from Django using mod_wsgi and receive error 403 Forbidden when I access local host. System: LXLE Unix Apache 2.4.18 Django version 1.11.17

I am not sure how to ask this question. If I knew exactly what to look for, I might not have to post here. I will explain the situation, I hope you guys can tell me what exactly to look for(or what

I want to use parrot sdk and skycontroller2 to control the drone, I have used the example of skycontroller2 in the github: (I have added the following) usb_accessory_filter.xml <?xml

Suppose I had a standard numpy array such as a = np.arange(6).reshape((2,3)) When I subarray the array, by performing such task as a[1, :] I will lose dimensionality and it will turn into 1D and

I have an array of city codes $cities=[9,12,14,2,3,4,5,6,8,10,11,13] My posts table has a foreign key named city_id I want sorting posts based on the values of this array In this way: the first

My (simple) ClickOnce app installs successfully on the computer I developed it on, and has been updating from my local WAMP server. Then I tried to install the app on another computer but it didn't

I'm new to Kotlin and I'm trying to do a simple task - create and write to a file. For some reason, using use() with a block function on printWriter() doesn't actually write. File("test2.txt").

so i have a large data frame with a date time column of class POSIXct and a another column with price data of class numeric. the date time column has values of the form "1998-12-07 02:00:00 AEST"

I am trying to use opencv (v3.4) to capture video frames from AVI file. This is my sample code. #include <iostream> #include <opencv2/opencv.hpp> int main(int argc, char* argv[]) {

I have found on the internet this interesting article about plugins in mongoose. From that site I got this code: function HidePlugin(schema) { var toHide = []; schema.eachPath(function(

I want to replace {goal} braces with a price such as $45. for example $pattern = /\{goal\}/ $replacement = $45.00 $subject = Final price is {goal} so the function looks like preg_replace('/\\{

I've looked through the other threads and am only seeing ones that discuss returning a function that is in a function. I don't think that is what I want to do, but maybe I am looking at this in the

void Files::Push(const File& f) { if(!s_) { files_ = new File[++s_]; files_[0] = f; return; } File* tmp = new File[++s_]; memcpy(tmp, files_, (s_-1) *

Rust's standard library is exposed as two packages: std and core. In terms of API, the functionality in core is the subset of std that can be supported without depending on any operating system

We have a large python project which is tested using pytest, currently with unittest style classes, and we started migrating it to module-based, function style tests. We are having a debate whether

import pandas as pd df = pd.read_csv("C:/Users/Unique/Desktop/DataScience/Data/Assignment 2/sentiment_lex.csv") sepList = [] dictionary_a = {"Neg": 0, "W.Neg": 0, "Neu": 0, "W.Pos": 0, "Pos": 0} with

Suppose, you have a column in excel, with values like this 37001 37002 37003 asnsh 37004 singh 37005 and I want to get only numeric values like this in python using pandas 37001 37002 37003 37004

I am currently working on Invoice Software. I get struct in reading data from Access database. My question is about when i type 1st word of Product name the program do search in database and then show

In views: @foreach($bannerMeta as $index=>$item) <div class="form-group col-md-3"> <label for="name">URL Text:</label> <input type="text" class="form-

how should I fix this error? SecurityConfig import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.

For a very long time, in my UI5 application in src I had src="https://sapui5.hana.ondemand.com/1.52.4/resources/sap-ui-core.js" I recently changed to src="/resources/sap-ui-core.js" Everything is

I am trying to display name and age from a JSON Array in a HomeFragment. I have model, data and UI package. I am not seeing any error in the code or log but I am not getting the output in my activity.

so I'm trying to build an app on Heroku but it fails: remote: -----> Building dependencies remote: Installing node modules (package.json + package-lock) remote: remote: >

3

8

1970年01月01日00分02秒