All Questions

3
answers

Change letters of an html with function replace ()

I want to do something similar to what the lacuerda.net page does, where you have a music and you can turn it up or down tonality. I have my test page where I want to change the tone of the music. I've been testing with the function r...
asked on 27.06.2017 / 18:05
3
answers

Local Database in Java

I want to develop a website that works with MySQL, but at the same time I want that platform to be used from a desktop software. I'm doing it with java, and I'm new to that, I want to know how I could use a fully local database with java, whic...
asked on 21.09.2016 / 18:31
2
answers

How to execute a Mysql Script from java in linux?

I'm trying to execute a script .sql generated with MySQL from a java application, I have read and researched different ways to do it and I have found several options (none of which had worked for me) and I found the following block of code : p...
asked on 14.01.2018 / 07:21
4
answers

Doubts about J2EE [closed]

I am learning to work on the J2EE platform, and a series of questions have arisen, I would like a less technical response than in the documentation Oracle offers. As a development environment selection I am using NetBeans , for its man...
asked on 02.11.2016 / 13:44
1
answer

Unexpected result using string.split ()

Given the following code: function myFunction() { var str = "<tr><td>Prueba 1</td><td>Prueba 1</td><td>Prueba 1</td>td>Prueba 1</td><td>Prueba 1</td><td>Pru...
asked on 20.08.2017 / 22:11
4
answers

Center several divs

I am trying to center divs horizontally, (I do not understand why something so simple is so complicated ...) I have seen that the function cal (), theoretically does this, and if it does, but it centers us with respect to the screen, it simpl...
asked on 31.01.2018 / 10:54
3
answers

How can I send the id along with an event in js

My question is if I can send the id of a tag in html along with the same event that executes it, for example: <button id="boton" onclick="mandarId()"> and when the event happens send the id of the tag too.     
asked on 04.11.2016 / 11:59
1
answer

Android webview print

I have created an app that is a webview that opens a web page made in PHP in android as if it were an application, it works perfectly but the problem is that the buttons do not print they work, you give them and they do not do an...
asked on 01.03.2017 / 16:10
2
answers

Get the name of a binary image with base64 when you download it

Suppose I have the following base64 image: <img alt="imagen de prueba" width="16" height="16" src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAA……… /> When I run the view in the browser and show the image, at the time of downloa...
asked on 13.01.2016 / 04:30
4
answers

two-dimensional javascript array

I have to get this structure in Javascript : In it I will keep objects in the first column and in the second one an amount that will be a whole number. I have to create it with a two-dimensional array. I have tried a thousand ways,...
asked on 23.01.2018 / 05:57