All Questions

1
answer

Error while Launching activity in the Android Studio emulator

I have running the native emulator running Android Studio 2.1.2, I find that only once does the application load me into the emulator, and the following times I give it to compile I get the error:    Error while Launching activity     
asked on 12.07.2016 / 12:31
1
answer

How can I create a grid in java, that allows me to auto-filter the data as in dev express?

I would like to know if there is any alternative to grid view in java, which allows me to perform several functions as auto-filters, or to customize to the maximum in a less tedious way. Thanks     
asked on 14.07.2016 / 14:47
1
answer

Obtain various properties of the object

Hi, I would like to know what solutions there are to reduce an object. I have a model which is used as a return in the controller but I'm only interested in certain properties of that model. The main idea I came up with was to create an anonymou...
asked on 12.07.2016 / 08:02
3
answers

How to do an input number excluding the first 0?

I have an input that only accepts positive numbers (without decimal or hyphens) but I want to exclude the first zero <input id="cantidad[1]" NAME="cantidad[1]" class="form-control" type="number" pattern="\d*"/ min="1"> <script type="t...
asked on 07.07.2016 / 00:51
2
answers

do the functions in JAVA menu buttons

I need to put actions to the buttons of a menu created in java with netbeans, I did it with the help that the compiler brings to make graphic menus but I do not know how to make the connection so that the buttons execute functions, if someone ex...
asked on 14.07.2016 / 00:14
1
answer

I'm playing the hangman game, and do I need to change a string for a char? but only one in a position

public class replace { public static void main(String[] args) { Scanner teclado = new Scanner(System.in); String sentence = "SISAS"; String auxWord = sentence; int g = sentence.length()*2; String remplazo = "_ "; while(r...
asked on 22.07.2016 / 00:32
2
answers

jQuery, Exit an item that I have not entered

Make a navigation bar with a drop-down menu that will be automatically displayed when you hover over an element of that bar and that when leaving the element is automatically hidden. I have managed to do almost everything, but when I want the...
asked on 12.07.2016 / 19:20
2
answers

Data persistence on Android

Goodbye, I'm creating an app where in the first activity I filter the regions of the country and then I pass them through the following activity where I call a webservice with the respective filter to bring me the correct data, after that clicki...
asked on 15.07.2016 / 15:04
1
answer

How to know when when the request to the server has ended with Angular2 and Firebase

I am using angularfire2 to communicate with the Google Firebase backend. This is the code: import {Component} from '@angular/core'; import {AngularFire, FirebaseListObservable} from 'angularfire2'; @Component({ selector: 'app', template...
asked on 15.07.2016 / 13:00
1
answer

Convert VARCHAR to VARBINARY (SQL)

I was creating a stored procedure in SQL Server and I missed this conversion error. "Implicit conversion from data type to varbinary is not allowed. Use the CONVERT function to run this query." The idea is to encrypt and decrypt passwords....
asked on 17.07.2016 / 23:53