Questions tagged as 'java'

Tagged questions
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Help because the error 400-Bad Request, The request could not be understood?

I have three checkboxes which are shown on my screen and I want them to be selected by default when they enter my screen if their field that fills it with base has the value of 1 <inpunt type="checkbox" id="checkName1" name="checkNa...
asked by 15.10.2018 / 01:50
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DireBaseDataBase in a Fragment

my problem is that when trying to use the method "FirebaseDatabase" in a fragment, Android studio does not solve it. I am new to this, I wanted to know if someone can help me. Fragment import android.os.Bundle; import android.support.v...
asked by 11.10.2018 / 20:50
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sum xpath function

I need to add the total to compare fantasy books This is my XML: This is my java code, I'm not very familiar with this, can you help me?     
asked by 12.10.2018 / 15:06
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black letters in ireport and netbeans

When I generate the preview of my report, the letters come out as I wish: painted in bold: But then when I save it as .pdf, it generates me this way: Why does this happen? How could I fix it?     
asked by 12.10.2018 / 15:04
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How do I identify which radio buttons were selected from each group?

I'm making an application where groups of Radio Buttons are generated whose names and values depends on a json. But, I have a detail, if for example 3 groups of radio buttons are generated with 3 options each, what I want is to know that radio b...
asked by 12.10.2018 / 15:19
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notifyDataSetChanged () does not refresh the ListView items

Context: I am trying to consume an API, from where I recover data from clients and with them I intend to create a ListView. It should be noted that I have already verified that the data is received. Customer class: public class Cliente {...
asked by 13.10.2018 / 05:07
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Use of an imported class for the creation of a class

I need help with the following: Create the Pagare class. The class contains data fields that hold a promissory note number, the payee's last name, amount, date of opening and expiration date, use GregorianCalendar objects for each date. Provi...
asked by 12.10.2018 / 01:16
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How to perform a function similar to Excel using a JTable in Java Netbeans?

I need a code that allows me to perform the following function in Java Netbeans. The box that is marked with red has four fields, Name, user, password and service. And with the same name of Edgar Perez there are registered several users...
asked by 12.10.2018 / 05:01
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Pass data between windows with javafx

I am working with a form, which has several textFields that I want to fill by taking the data from another window, the window from which I want to take the data I open it by clicking on an icon that is located next to the textField The sec...
asked by 28.10.2018 / 00:09
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Help on an ArrayList exercise

I'm trying to do an exercise where I have to use the ArrayList class and I can not find a way to do it. The statement of the exercise is as follows:    In a teletype terminal there is a backspace character that allows you to cancel the last...
asked by 11.10.2018 / 15:58