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c - Why do we separately cast to "float" in an integer division?

For example: int number1 = 1, number2= 2; float variable = (float)number1/(float)number2; Instead of this, Why ... = (float)(number1/number2); See Question&Answers more detail:os...

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execCommand insertHTML breaks stored window.getSelection()

When using methods of selecting text and restoring selected text in a page, I have found that running execCommand( ... then reselect the text. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Messy plot when plotting predictions of a polynomial regression using lm() in R

I am building a quadratic model with lm in R: y <- data[[1]] x <- data[[2]] x2 <- x^2 quadratic. ... that it's quadratic? Thanks for any help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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json - AS3 for ios : how to serialize an array and then save it

I have an multidimentional array and I want to serialize it and then save it using SharedObjects. I tried many ... retrieve this array ? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - How to curve the div from bottom with image background

Is it possible to add the bottom curved using HTML CSS so we don't ned to crop the image like this? The main ... use the SVG? I am not sure. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - PostgreSQL 9.3: Dynamic pivot table

I have a table called as matrix which contains two columns namely cola and colb as shown below: Table: matrix create table ... 0 0 0 0 0 0 1 See Question&Answers more detail:os...

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Highcharts spline dataLabels overlapping

I have a question about highchart's overlapping data labels. I have 2 spline data series and as you can ... , enableMouseTracking: false } }, See Question&Answers more detail:os...

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java - Where should i place my files in order to be able to access them when i run the jar?

I store some objects in files and everything works fine in Netbeans console. But when i run the JAR through ... app through the command line? See Question&Answers more detail:os...

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Javascript: avoid exceptions for string to integer or float typecast conversion with null or undefined variables?

Background javascript (V8 engine) google chrome browser inherited javascript code with lots of type casting of numeric ... code is set up. See Question&Answers more detail:os...

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Python Discord.py `time.sleep()` coroutine

import discord import os import random import time import math client = discord.Client() with open('admins.conf' ... and then nothing happens). See Question&Answers more detail:os...

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ios - Why is this code not recognising the NSString as being equal?

This is the code I have: NSLog(@"name: %@", name); NSLog(@"service: %@", service.name); if (name == ... NSLog. Any ideas why this could be? See Question&Answers more detail:os...

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winforms - Updating UI in C# using Timer

I am working on making my application that reads data from the serial port and updates a gauge on the UI more ... I can't figure it out. See Question&Answers more detail:os...

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scala - Doing multiple column value look up after joining with lookup dataset

I am using spark-sql-2.4.1v how to do various joins depend on the value of column I need get multiple look ... if any more details are needed. See Question&Answers more detail:os...

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How to print whole JPanel with a footer in every page in java swing

Ok it may simple. But can't figure it out. I have a JPanel that contains a JTable. JTable contains few ... possible. Help me please. Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Drive API Push Notifications for a Google Apps Script Web App

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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swift2 - How to access data in Class globally in any ViewController in the project

I am a newbie in Swift. Objective: Access the data globally How to use Swift to implement a global Temporary storage ... get; set; } } Thanks See Question&Answers more detail:os...

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ios - Expected declaration error for making high score

I'm trying to make a little game, now I want to make it possible to see the high score of the ... Expected declaration. Thanks for the help! See Question&Answers more detail:os...

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web applications - Using a variable from a VBScript in a ASP.Net website

I've been researching this for a majority of the day and can't find the answer. I am relatively new to ... not. Thank you for the help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Converting c# eventhandler code to vb.net

What would be equivalent code in vb.net for the code below dacServices.Message += new EventHandler<DacMessageEventArgs>(dbServices_Message); See Question&Answers more detail:os...

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Add a Watermark on Video after merging Video and Audio Asset into one in Swift3 iOS

I am working on Video based application in Swift3. As per my requirement I have to merge Video and Audio AVAsset into ... }) { saved, error in if saved { completion!(AVAssetExpo...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ruby on rails - Google plus API shutdown today, which alternative can be used to authentication?

I am using rails-4, and have used OAuth-2 for authentication with Google+ API, for which the following gems ... provide an alternative to this. See Question&Answers more detail:os...

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Read nodes of a xml file in C#

How can I read the following xml file into a List: Partial XML file (data.log) <ApplicationLogEventObject> ... will be much appreciated. See Question&Answers more detail:os...

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Netbean Java Swing, JPanel/Jlabel Cant cover whole Frame

I want to make my JLabel cover the whole frame but when i do so it wont cover the text field and ok ... icon in jlabel as background picture. See Question&Answers more detail:os...

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android - How to find resource id of a file located in /res/raw folder by its filename?

I want to get the resource id of the file located in /res/raw folder by filename. I have tried the ... located in raw folder in Android. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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algorithm - Painter puzzle - estimation

This problem is based on a puzzle by Joel Spolsky from 2001. A guy "gets a job as a street painter, ... developing an algorithm, nor code. See Question&Answers more detail:os...

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Java - How to call an oracle procedure with custom types?

I have a plsql procedure PROCEDURE merge_time_bounds(s1_bd_t IN bd_tb_struct, s2_bd_t IN bd_tb_struct, r_bd_t OUT ... call my procedure? See Question&Answers more detail:os...

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c++ - if statement not working right?

I've looked and looked with the debugger and cannot seem to figure out why the IF statement always prints the message. ... ) { ... Thanks guys. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Restructuring a bad database with PHP loops or MySQL

I have a special case with a PHP project where I am working with a database without a 3rd normal ... /end while mysqli_close($connection_var); See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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