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c++ - How do I explicitly instantiate a template function?

I have a template function with one argument. I have to instantiate that function without calling that function means ... error: expected `;' before 'template' Question&Answers:os...

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

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338 views

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cocoa - How to compare two dates in Objective-C

I have two dates: 2009-05-11 and the current date. I want to check whether the given date is the current date or not. How is this possible. Question&Answers:os...

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

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94 views

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How do I join two SQLite tables in my Android application?

Background I have an Android project that has a database with two tables: tbl_question and tbl_alternative. To ... join two SQLite tables in my application? Question&Answers:os...

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

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386 views

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Android ArrayList of custom objects - Save to SharedPreferences - Serializable?

I have an ArrayList of an object. The object contains the types 'Bitmap' and 'String' and then just getters ... then how do I go about storing this ArrayList? Question&Answers:os...

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

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296 views

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Get all the diagonals in a matrix/list of lists in Python

I'm looking for a Pythonic way to get all the diagonals of a (square) matrix, represented as a list of lists. Suppose I have the ... 9, 2, -4], [3, 8], [-1]] Question&Answers:os...

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

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200 views

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python - Let JSON object accept bytes or let urlopen output strings

With Python 3 I am requesting a json document from a URL. response = urllib.request.urlopen(request) The response ... urlopen or json.load to give an encoding? Question&Answers:os...

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

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c# - Adding placeholder text to textbox

I am looking for a way to add placeholder text to a textbox like you can with a textbox in html5. I.e. ... then the placeholder is added back to the textbox. Question&Answers:os...

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

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php - How to query between two dates using Laravel and Eloquent?

I'm trying to create a report page that shows reports from a specific date to a specific date. Here's my ... above to eloquent query? Thank you in advance. Question&Answers:os...

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

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120 views

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sql - MySQL "Group By" and "Order By"

I want to be able to select a bunch of rows from a table of e-mails and group them by the from sender ... MySQL to select that record when grouping the e-mails? Question&Answers:os...

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

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298 views

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android - What are advantages of setting largeHeap to true?

I have an application with large number of classes & also many libraries are included, I am setting android: ... disadvantages (pros and cons) of using it. Question&Answers:os...

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

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1.1k views

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open link of google play store in mobile version android

I have link of my other apps in my latest app, and I open them in that way. Uri uri = Uri.parse("url") ... the one that I see while open it directly from phone. Question&Answers:os...

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

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ASP.NET MVC Html.DropDownList SelectedValue

I have tried this is RC1 and then upgraded to RC2 which did not resolve the issue. // in my controller ... the value not being bound to the model though. Question&Answers:os...

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

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77 views

1 answer

ios - How to download file in swift?

I just started learning apple swift programming for iOS coming from android. I basically can now read and manipulate ... Also, pros and cons would be awesome! Question&Answers:os...

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

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c# - Views in separate assemblies in ASP.NET MVC

I'm trying to create a webapplication where I want to be able to plug-in separate assemblies. I'm using MVC ... only about 20 lines in code altogether I think. Question&Answers:os...

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

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422 views

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JavaScript equivalent of PHP's in_array()

Is there a way in JavaScript to compare values from one array and see if it is in another array? Similar to PHP's in_array function? Question&Answers:os...

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

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1.2k views

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spring - This application has no explicit mapping for /error

I used maven to do the tutorial https://spring.io/guides/gs/uploading-files/ All the codes I used was copied. The ... ). No message available How can I fix it? Question&Answers:os...

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

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230 views

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c - Undefined reference to `sin`

This question already has answers here: Question&Answers:os...

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

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279 views

1 answer

Manually add legend Items Python matplotlib

I am using matlibplot and I would like to manually add items to the legend that are a color and a label. I am ... when I run it. Am I missing anything? Thanks Question&Answers:os...

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

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186 views

1 answer

c++ - Why is Default constructor called in virtual inheritance?

I don't understand why in the following code, when I instanciate an object of type daughter, the default grandmother() ... int main() { daughter x(0); } Question&Answers:os...

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

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649 views

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android - Decimal separator comma (',') with numberDecimal inputType in EditText

The inputType numberDecimal in EditText uses the dot . as decimal separator. In Europe it's common to use a ... way to get the comma as decimal separator? Question&Answers:os...

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

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146 views

1 answer

Get list of data-* attributes using javascript / jQuery

Given an arbitrary HTML element with zero or more data-* attributes, how can one retrieve a list of key-value ... ).data() would return the required data dict. Question&Answers:os...

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

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120 views

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html - background: fixed no repeat not working on mobile

I am building a webpage where I want the background image to scale to fit the whole screen, maintain aspect ... -size: cover; background-size: cover; } Question&Answers:os...

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

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71 views

1 answer

javascript - How to copy text from a div to clipboard

Here is my code for when the user clicks on this button: <button id="button1">Click to copy</button> How do I copy ... div? <div id="div1">Text To Copy</div> Question&Answers:os...

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

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330 views

1 answer

What does the forward slash mean in the CSS font shorthand?

I'm seeing the following CSS declaration in a stylesheet: font: 12px/18px ... What does the 12px/18px part mean exactly? Question&Answers:os...

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

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344 views

1 answer

HTML text input field with currency symbol

I would like to have a text input field containing the "$" sign in the very beginning, and no matter what ... for input, but that's just a fancy addition. Question&Answers:os...

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

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497 views

1 answer

How do I convert between ISO-8859-1 and UTF-8 in Java?

Does anyone know how to convert a string from ISO-8859-1 to UTF-8 and back in Java? I'm getting a string from ... the ISO-8859-1 encoding. How do I do this? Question&Answers:os...

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

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144 views

1 answer

java - log4j redirect stdout to DailyRollingFileAppender

I have a java app that uses log4j. Config: log4j.rootLogger=info, file log4j.appender.file=org.apache.log4j. ... traces and sysouts to the daily rolled file ? Question&Answers:os...

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

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139 views

1 answer

jQuery AJAX Character Encoding

I'm currently coding a French website. There's a schedule page, where a link on the side can be used to load ... the <td> to wrap to the next line? Cheers Question&Answers:os...

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

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