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android - How to download XML file from server and save it in SD card?

In my application i'm trying to download XML file from server and storing it in SD card.For this i'm using ... ..I'm new to android development See Question&Answers more detail:os...

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

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scala - Why is it possible to declare variable with same name in the REPL?

scala> val hi = "Hello "e" hi: String = Hello "e scala> val hi = "go" hi: String = go Within ... This error i understood we cannot reassign val See Question&Answers more detail:os...

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

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c# - LINQ Custom Sort

I want an alphabetic sort with one exception. There is a Group with a Name = "Public" and an ID = "0" that I want ... = ID; name = Name; } } } See Question&Answers more detail:os...

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

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edi - How to load a flat file with header and detail data into a database using SSIS package?

I have to load a flat file that has different header and detail with variable number of columns. These have parent ... GE*1*88 IEA*1*000000088 See Question&Answers more detail:os...

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

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objective c - iOS Protocol / Delegate confusion?

All this is my first post and I will try to be as precise as possible. I have read numerous articles about ... so what I am doing wrong? See Question&Answers more detail:os...

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

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email - Sending mail error with python smtplib

I am attempting to use the python 3.2 SMTPlib.sendmail() function to send a message, after some modifcation of ... ('SendMail Failed') print(e) See Question&Answers more detail:os...

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

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r - Scraping with rvest - complete with NAs when tag is not present

I want to parse this HTML: and get this elements from it: a) p tag, with class: "normal_encontrado". b) div ... (".price") %>% html_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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Divide row value by aggregated sum in R data.frame

I have the following data frame dat <- data.frame(x=c(1,2,3,3,2,1), y=c(3,4,4,5,2,5)) Now I would ... R and I hope you can help me. Thank you! See Question&Answers more detail:os...

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

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ios - Calculating convexityDefects using OpenCV 2.4 in c++

I'm using OpenCV 2.4 to calculate the convex hull of a image. I'm also doing some processing to remove ... , CV_32S) > 2) in convexityDefects See Question&Answers more detail:os...

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

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dplyr / R cumulative sum with reset

I'd like to generate cumulative sums with a reset if the "current" sum exceeds some threshold, using dplyr. In ... reset after the first time. See Question&Answers more detail:os...

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

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macos - Get other process' argv in OS X using C

I want to get other process' argv like ps. I'm using Mac OS X 10.4.11 running on Intel or PowerPC. First, I ... There is no more way to do it? See Question&Answers more detail:os...

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

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android - NDK - problems after GNUSTL has been removed from the NDK (revision r18)

Today I updated my Android Studio NDK to the most recent release 18.0.5002713. After the successful installation ... Thank you in advance. See Question&Answers more detail:os...

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

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swift - Selecting global or object print function

I am working with on a Cocoa project in Swift and confronted the following problem: Several classes in the Cocoa ... println: is not available. See Question&Answers more detail:os...

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

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highlight error cell or input when validation fails in jqgrid

I am using jqgrid inline editing with validation in grid using edit rules . i want to add class to highlight ... error triggered cell/input . See Question&Answers more detail:os...

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

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javascript - Handling multiple files from an input element in an array with Google Apps Script

I have a form, which allows to select an item from a dropdown list and upload a file. The name and the ID of ... error.toString(); } } 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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java - jTextField accept only alphabet and white space

i want user to enter only alphabet or white space if user enters other character , i want give message with ... . how can i solve this See Question&Answers more detail:os...

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

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731 views

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java - How can I serve a PDF to a browser without storing a file on the server side?

I have two methods. One that generates a PDF at the server side and another that downloads the PDF at the client ... (); } return doc; } See Question&Answers more detail:os...

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

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asp.net web api - API for Performance and Endurance storage(Block storage)

We are a part of DST India team and currently we are working for an offering for our client where we ... (along with the parameters required) See Question&Answers more detail:os...

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

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swing - Java make a directed line and make it move

I want to make a directed line and make it move. I am able to make a directed line and move the line but ... and endx and enny at mouse drag See Question&Answers more detail:os...

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

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java - how can I add PAdES-LTV using iText

I am trying to enable LTV in an already signed PDF document without LTV format. I have found the same example in all ... itext: 5.5.11 java: 8 See Question&Answers more detail:os...

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

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613 views

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How can I transition height: 0; to height: auto; using CSS?

I am trying to make a <ul> slide down using CSS transitions. The <ul> starts off at height: 0;. On hover, the ... content <br> </div> </div> See Question&Answers more detail:os...

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

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python - Should I avoid converting to a string if a value is already a string?

Sometimes you have to use list comprehension to convert everything to string including strings themselves. b = [str(a ... any value of a string? See Question&Answers more detail:os...

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

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select - Oracle date difference to get number of years

Is there a way to calculate the number of years between dates. Not sure how to do this while accounting for ... maybe in the SELECT? 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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How can I use a Scala singleton object in Java?

I have a Scala object that I need to use in a Java class. Here's the Scala object object Person { val ... as I want the actual Person object See Question&Answers more detail:os...

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

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.net - Why c# decimals can't be initialized without the M suffix?

public class MyClass { public const Decimal CONSTANT = 0.50; // ERROR CS0664 } produces this error: error CS0664: ... . It seems weird to me. See Question&Answers more detail:os...

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

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534 views

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c# - How to add a reference to System.Numerics.dll

I want to use the BigInteger class from the System.Numerics but if i want to write using System.Numerics; Numerics is ... but how can I do that? See Question&Answers more detail:os...

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

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Failed to execute toolsandroid.bat: solution

When I try to open up the SDK Manager in eclipse it says opening shortly, but never opens. ... Developmentadt-bundle-windows-x86-20130917sdkools See Question&Answers more detail:os...

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

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c preprocessor - Changing a macro at runtime in C

I have a macro defined. But I need to change this value at run time depending on a condition. How can I implement this? See Question&Answers more detail:os...

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

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