Interesting questions
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answer58
viewsMerge 2 MYSQL query into same table
I have this consultation where it results the date, the count, and the sum of products of the entry $result_entrada_mes = "SELECT DATE_FORMAT(data,'%m/%Y') as data, COUNT(quantidade) as qnt,…
mysqlasked 6 years, 7 months ago Caio Alexandre 1 -
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votes2
answers207
viewsInteger combination command. C++
Is there a command that allows the combination of two integers? I have a variable that counts 5 and one that is worth 6 for example, there is some command that makes it possible to play the…
c++asked 10 years ago Evandro Ferraz 107 -
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answers37
viewsError sending form to save
You are generating the following error by submitting my record form: Notice: Undefined index: client in C: xampp htdocs guaraparivirtual Adm-gc write-text.php on line 3 This code below $idcli =…
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answers82
viewsKernel build error in Ubuntu
I am trying to compile the 3.2.91 kernel on Ubuntu and when I run the make command this error occurs: scripts/Makefile.build:305: recipe for target 'arch/x86/kvm/vmx.o' failed make[2]: ***…
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answer118
viewsReact.js Failure Manipulating Events
I’m starting to learn React.js by watching some videos, tutorials and documentation. However, I am having a problem with my code in Google Chrome appears like this: And in Firefox neither appears…
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answer293
viewsPython programming (calculating average with shares, average case less than set value)
I need your help to solve an issue of my programming course, I have an initial activity and do not know where to continue, I need to create a program that gets 2 grades, disappear and divide by two…
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answer715
viewsLoad bar with pure Javascript
Sometimes I see loading bars with percentage on sites that I believe overwrite the default behavior of the page when loading (white screen until the content is ready). There are some jQuery plugins…
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answers229
viewsRange Seekbar Android
Good afternoon, I need to make Seekbar like that image How can I do that? The native and simpler Seekbar without this dual option.…
androidasked 9 years, 11 months ago carlos giovani casilo 473 -
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answer2915
views'Nonetype' Object is not subscripteble in Python
I have an exercise in defining a class Triangulo and a method retangulo(), who will return True if the object is a rectangular triangle. I always liked to use lists to solve my problems, so I wrote…
pythonasked 6 years, 2 months ago Bernardo Lansing 121 -
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answer59
viewsOptical illusion parallel lines
I have the following exercise that asks me to draw an optical illusion like the following: But I’m not finding a simple way to make the code so that it does this progression where it goes one square…
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answer37
viewsRepeating structure - 10% "every day"
I can’t make a repeating structure. Example of what I want to do: I enter the initial value and enter the percentage I want it to increase for 30 days. Example of starting value: 50. Percentage that…
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answer1203
viewsHow do I change my IONIC app id to add in Google Play Console?
I’m trying to publish my application in Google Play Console, but when adding the SDK appears the following message. Use a different package name. "io.ionic.Starter" already exists in Google Play.…
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answer533
viewsPass collected values at the click of the button to php variable
I am a beginner in PHP and I have the following problem: I have a table, to which each row has a title, and three buttons that have values, to the user click the button 1 or 2 the 3, I need to store…
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answers96
viewsProblem uploading a photo to a web server
Hi! I’m having a problem uploading a photo taken from an android app to a web server. On the local server it usually sends the photo, already on the web server, it sends only one photo and only…
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answers90
viewsHow to use a Cordova plugin in my Ionic 3?
I need to implement in my application the following Ionic plugin:…
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answer87
viewsHow do I join 3 backgrounds?
The thing is, I have a div with id="1". And I have three images, with 20 pixels each that I want to be my backgrounds, but I want my div to have all three backgrounds, so on the left side of each…
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answer647
viewsUpdating Apk on Google Play
I made some modifications in an app that was started by another developer. The modifications went all right and now I want to publish in Google Play. I followed the tutorial…
androidasked 12 years, 4 months ago JamesMartins 97 -
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answer150
viewsREST/JAVA+ANGULAR2 authentication
I have a java Rest api and need to perform an authentication (login/password). I’m basing myself on this java code that uses Jwt: http://www.totalcross.com/blog/seguranca-com-jwt-e-java/ My question…
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answer30
viewsError Call to a Member Function store() on string - image upload error
I’m trying to make a upload of images using the public function create, but when I try to send the form to register the error appears: Error Call to a Member Function store() on string Does anyone…
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answers165
viewsHow to make the user system banned
I was doing a login system and wanted that when a user had the name Banned in the banned column of table tb_user he could not login. if ($_POST['username']) { if( strtolower($_POST['code'])!=…
phpasked 11 years, 5 months ago feliphe felix 629