Questions tagged as 'java'

Tagged questions
3
answers

Calculate the minutes difference between two hours

I have the following problem: I have two hours each in their respective jTextField , what I need to know is what to do to subtract those two hours, and calculate only the difference minutes at the moment of pressing the respective button....
asked by 14.08.2018 / 14:36
0
answers

How to load data through files in a java program?

This is my code for file management package arbolBinario; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.PrintWriter; public class archivos { public archivos() {...
asked by 04.08.2018 / 16:28
1
answer

How can I disable the checkbox contained in a table?

I'm starting with java and I had a problem, I have a table that is populated through a MYSQL database, this data is inserted through the "addRow ()" function where I also add a checkbox the problem is I want to disable the checkbox so that the u...
asked by 04.08.2018 / 01:21
0
answers

query date in jdatechooser java

I have a product sales table that also records the sale date. I have been doing several consultations, but in one of them I have a problem. I want to make a query of a certain date, the date indicated by jdatechooser. How do I formulate the quer...
asked by 04.08.2018 / 02:11
0
answers

Problems with Routes when creating the JAR

A few days ago I have a problem with a Java system that I am doing, the problem is when creating the JAR, I do not save my settings in a txt file. This is the variable where I save the file public String directorioGlobalConfig = "../gafe//src/...
asked by 10.08.2018 / 15:08
0
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How to load data returned with spring mvc in an ExtJs grid?

A couple of days ago I look for the solution to my problem and nothing, and that is that I am working with java framework Spring MVC with SQL connection and integrated with Extjs 6.2 I try to load the data that returns spring to me within a grid...
asked by 10.08.2018 / 14:38
1
answer

p: selectBooleanButton INSIDE p: tab JSF PRIMFACES (I get an error, I do not get the action of pressing the button)

I have the following code inserted inside a p: tab, the case is that if I take it from the p: tab if it works for me but inside the no. I've been a while and I do not get anything. <div class="row col-sm-12 text-...
asked by 09.08.2018 / 11:22
0
answers

Download file jsf 2.2 primefaces

I'm trying to make use of the p:fileDownload component of primefaces. <p:commandButton value="Download" ajax="false" icon="ui-icon-arrowthick-1-s"> <p:fileDownload value="#{fileDownloadView.file}" /> </p:commandBut...
asked by 09.08.2018 / 14:47
1
answer

java.sql.SQLException: No suitable driver found for jdbc: mysql // localhost: 3306 / rch Spring MVC [duplicate]

Hello, I hope and someone can help me. I have a mysql connection problem with spring mvc and weblogic. The exception thrown at me is the following.         Caused by: java.sql.SQLException: Not suitable driver found for jdbc: mysql // lo...
asked by 04.08.2018 / 23:48
12
answers

How to correctly compare Strings (and objects) in Java?

I am creating a mini game in which the user tries to guess a name. But when I want to compare two text strings to see if they are equal it does not seem to work. final String miNombre = "Jordi"; Scanner input = new Scanner(System.in); System.o...
asked by 02.12.2015 / 12:35