Recent questions tagged how

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how to insert or append new line on top of the jtextarea in java swing?

how to insert or append new line on top of the jtextarea in java swing ? i want to to append jtextarea and add ... help me how to do this. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to do a linux reboot from php file

I have a user brftv on my linux system and I have www-data that runs the nginx. from the terminal I can let ... above that didn't work for me.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how can i check if image exists in assets folder using angular 4

I need to check if a image exists in the folder using Angular 4.I have a list of image name that is returned ... help or idea would be great. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to parse the xml inside CDATA of another xml using xslt?

I need to transform the XML inside the CDATA of the XML using the single XSLT. I have an XML as below ... this. Many thanks in anticipation.. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to change the color of a particular area on Google map api v2 in android

I am working on an Android app that makes use of the Google Maps API v2 and would like to mark a specific ... Maps API v2 map more accurately? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to calculate Euclidean distance between two matrices in R

I have two huge matrices with equal dimensions. I want to calculate Euclidean distance between them. I know ... mat2. any suggestion please? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to convert a hash value returned from a date_select in rails to a Date object?

I have a date_select in my view inside a form, however on submit the value returned is in a hash form like so: ... rails way to do this? thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to load more than 1 MB data from sqlite db to android cursor?

exactly i am trying to load more than 1MB of data from sqlite database to android cursor. At the time of ... 1MB) to android cursor? thanks, See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to set global const variables in python

I am building a solution with various classes and functions all of which need access to some global consants to be ... ', Const.gravity() ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to use javascript setTimeout function in firebase cloud functions

I'm trying to create a cloud function for firebase that remove a user depending on the delay value and insert ... not working can someone help? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to Embedded Code Blocks in ASP.NET Web Pages?

where we use <%@ %> <%= %> <%# %> etc. what else asp tags can be added in asp.net web pages? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to override [] brackets in ruby?

I am writing an Ajax request form with Ruby on Rails using a collection_select tag that looks like this: <%= ... 's? backslash isn't working. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to detect merged cells in c# using MS interop excel

I want to detect merged cells either in a row/entire sheet(preferable).Here is my code Microsoft.Office. ... range contains merged cells. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to get the line number of an error from exec or execfile in Python

Let's say I have the following multi-line string: cmd = """ a = 1 + 1 b = [ 2 + 2, 4 + 4, ... a solution that copes with any kind of exception. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to know how many rows will be affected before running a query in microsoft sql server 2008

i've read a bit about ROWCOUNT but its not exactly what im looking for. from my understanding rowcount states ... the query. is this possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to display only time in jquery datepicker?

I want to display only time from jquery datepicker. my current code is $('#field-start_t_a').datetimepicker({ ... required output is 00:12 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to detect merged cells in c# using MS interop excel

I want to detect merged cells either in a row/entire sheet(preferable).Here is my code Microsoft.Office. ... range contains merged cells. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to get the line number of an error from exec or execfile in Python

Let's say I have the following multi-line string: cmd = """ a = 1 + 1 b = [ 2 + 2, 4 + 4, ... a solution that copes with any kind of exception. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to know how many rows will be affected before running a query in microsoft sql server 2008

i've read a bit about ROWCOUNT but its not exactly what im looking for. from my understanding rowcount states ... the query. is this possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to display only time in jquery datepicker?

I want to display only time from jquery datepicker. my current code is $('#field-start_t_a').datetimepicker({ ... required output is 00:12 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to rename files you put into a tar archive using linux 'tar'

I'm trying to create a tar archive with a couple files, but rename those files in the archive. Right now I have ... /etc How can I do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how can i remove chars between indexes in a javascript string

i have the following: var S="hi how are you"; var bindex = 2; var eindex = 6; how can i remove all the ... ? therefore S will be "hi are you" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to show history of a folder in visual studio git

I'm using visual studio 2016 git integration. If I right-click on a source file I can see the ... solution folder containing the projects)? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to create startup application in android?

I am new to android. I need to create an auto startup application. That application will control the files( ... format in the android emulator. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how best to cope with different versions of Android?

I have an app that works fine in Android 1.x but not in Android 2.x i need to do things different based on ... app is running on? many thanks Ed See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to check if mysql query return no result(record not found) using php?

i am passing images file names via textarea to php script to find information about each image in mysql db . ... "<br>totalRows:".$totalRows; See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to assign to the names() attribute of the value of a variable in R

In R, "assign('x',v)" sets the object whose name is 'x' to v. Replace 'x' by the result of applying ... this? a parse-eval trick maybe? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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how to use Boost:serialization to save Eigen::Matrix

Hello I have a code which implements libeigen2 to calculate eigen vectors. Now I want to use boost::serialization ... ? Thanks in advance. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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