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android - What is more efficient? Static, data Passing, shared preferences, Database...?

I was recently doing an application in android and at some part I got a doubt that which is the efficient way of ... , it would be very helpful. See Question&Answers more detail:os...

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

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Lock Windows workstation programmatically in C#

I ran into this example for locking Windows workstation: using System.Runtime.InteropServices; ... [DllImport("user32 ... , without P-Invoke. 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 - SOAP suds and the dreaded schema Type Not Found error

I'm using the latest version of suds (https://fedorahosted.org/suds/) for the first time and I'm ... :definitions> yields the exception above. See Question&Answers more detail:os...

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

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x86 - Why can't my ultraportable laptop CPU maintain peak performance in HPC

I have developed a high performance Cholesky factorization routine, which should have peak performance at around ... the overall measurement. See Question&Answers more detail:os...

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

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dataframe - Vectorized "in" function in julia?

I often want to loop over a long array or column of a dataframe, and for each item, see if it is a member ... don't know of anything in base. 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 come checkbox state is not always passed along to PHP script?

I have an HTML form: <form action='process.php' method='post'> <input type='checkbox' name='check_box_1' /> ... the checkbox was just not set? See Question&Answers more detail:os...

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

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Apache Spark Python Cosine Similarity over DataFrames

For a Recommender System, I need to compute the cosine similarity between all the columns of a whole Spark DataFrame. In ... to do it in Spark) 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++ - STL containers element destruction order

Does ISO C++ standard mandate any sort of destruction order of objects inside STL containers? Are std::list/std:: ... its value (or vice versa)? 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 - duplicate interface declaration for class 'test_coredataAppDelegate'

two errors suddenly fired in this piece of code - duplicate interface declaration for class 'test_coredataAppDelegate' ... please Best regards 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 - gmail login failure using python and imaplib

I'm seeking some help logging into a gmail account and downloading some emails using a python script. ... security requirements using libimap? 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 - How to make a custom object iterable?

I have a list of custom-class objects (sample is below). Using: list(itertools.chain.from_iterable(myBigList)) I ... Note: Using Python 3.3 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# - Does the System.Windows.Forms.Timer run on a different thread than the UI?

I have a main thread that creates a form object which creates and sets a timer to run a function named ... other than the main thread? See Question&Answers more detail:os...

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

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sorting - C++, Sort One Vector Based On Another One

The best example I've got is that I want to sort Names based on their Score. vector <string> Names {"Karl" ... be sorted based on their score. See Question&Answers more detail:os...

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

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Bootstrap's JavaScript requires jQuery version 1.9.1 or higher, but lower than version 3

Introduction I am working with the bootstrap framework.I am currently working on "Bootstrap Tabs"(hide/show).I am ... help.Thanks for your 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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android - Flutter: How to fix "A RenderFlex overflowed by pixels " error?

I am using GridView in my Flutter app to display images and their titles. Please check the below code. import ' ... UI 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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python - Why can't I subclass datetime.date?

Why doesn't the following work (Python 2.5.2)? >>> import datetime >>> class D(datetime.date): def ... __init__' of 'object' objects> 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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json - Angular: 'Cannot find a differ supporting object '[object Object]' of type 'object'. NgFor only supports binding to Iterables such as Arrays'

I've created an angular app which gets data from a json file. But I'm having issues with showing the data in html. ... .patientid}} </li> </ul> See Question&Answers more detail:os...

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

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php - DOMXpath - Get href attribute and text value of an a element

So I have a HTML string like this: <td class="name"> <a href="/blah/somename23123">Some Name</a> </td ... 's something like that even posible?). See Question&Answers more detail:os...

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

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windows - Determining running programs in Python

How would I use Python to determine what programs are currently running. I am on Windows. 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 - How to trap unaligned memory access?

I am working on a pet open-source project that implements some stream cipher algorithms and I am having trouble with ... running Linux 2.6.32. 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 - ActivityNotFoundException?

I am getting an ActivityNotFoundException in the following code: Main.java Intent intent = new Intent(); intent. ... intent-filter> </activity> 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 - Autowired gives Null value in Custom Constraint validator

I am totally new to Spring and I have looked in to a few answers on SO for the asked ... .web.servlet.view.InternalResourceViewResolver; 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 server - What is the sql connection string I need to use to access localhostSQLEXPRESS with Windows Authentication or SQL Authentication?

've installed SQL Express on my PC hoping to do some practice creating tables and then modifying them. I coded a ... for user 'x309-PCx309'. See Question&Answers more detail:os...

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

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Possible to initialize an array after the declaration in C?

Is there a way to declare a variable like this before actually initializing it? CGFloat components[8] = { 0.0, 0.0, 0.0, ... 0.0, 0.0, 0.15 }; 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++ - Do these members have unspecified ordering?

A colleague told me that, in the following type, all members have unspecified ordering in memory (relative to one another ... public: int z; }; See Question&Answers more detail:os...

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

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php - laravel model callbacks after save, before save, etc

Are there callbacks in Laravel like: afterSave() beforeSave() etc I searched but found nothing. If there are no ... way to implement it? 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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450 views

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how to run compiled class file in Kotlin?

Jetbrains provides some documentation but I can't find how to run compiled class file of Kotlin. hello.kt: fun ... How to run Kotlin program? 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 - How do comparison operators < and > work with a function as an operand?

Ran into this problem (in Python 2.7.5) with a little typo: def foo(): return 3 if foo > 8: ... >>> (9e9).__lt__(foo) NotImplemented See Question&Answers more detail:os...

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

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