Correct Way To Set A Default Button In A Dialog?

Dec 9, 2014

I found different ways to code this for a button named "closeButton":

- closeButton.getRootPane().setDefaultButton(closeButton);

- thisDialog.getRootPane().setDefaultButton(closeButton);

- SwingUtilities.getRootPane(closeButton).setDefaultButton(closeButton);

Which is best?

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Enter Password - If Correct Next Dialog Box Will Pop Up

Feb 28, 2015

The goal of this section of my assignment is to ask the user for a password. The password entered has to match the password I set in the code. If it is correct the next dialog box will pop up.

my password is set to:
String enterpwd = "";
String correctPassword = "Setpassword";

I am asked to use JOption, I completed as follows:

enterpwd = JOptionPane.showInputDialog(""............JOptionPane.QUESTION_MESSAGE);

then I use IF statements

if (enterpwd == correctPassword)
xyz = JOption .......();

I am getting an error "java.lang.NumberFormatException: For input string: """

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Feb 27, 2014

I am learning java and I have Assignment on how to implement a open dialog for menubar button ... how i can step in ...

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I want to create a button bar that is the same as the confirmation dialog button bar -- so an OK and cancel button layed out in the platform specific way, and with the same styling.
 
I have made some progress via a hack -- create an alert dialog, and extract the buttons in the dialog using lookupButton, and then put those buttons in a toolbar. But this doesn't necessarily get a toolbar with the buttons in the correct order. If I could get the button bar out of an alert dialog I would have a solution, but I can't see to do that.

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Oct 20, 2014

I'd like to change the text on the two buttons which I have in my Dialog Box, how should I do this?

Also, when I click the X Button in the top right of the Dialog Box, nothing happens, and the program only stops when I end it in jGrasp. How do I make this button close the program when clicked on?

import javax.swing.*;
import java.util.Random;
public class SwingInputExample {
public static void main(String args[]) {

[Code] .....

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JSF :: Dialog Inside Datatable With Button Displays Wrong Variable Value

Nov 27, 2014

I have a bookings table where customers can view their bookings and in the table there is a button with a command button that onclick goes to the dialogue to display the variable petUpdate value but if you have 2 bookings then all the update buttons display the value of the last petUpdate in the arrayList.

DataTable with the button

<p:dataTable
id="bookingTable"
var="customerBooking"
value="#{booking.sessionBookingList}"
editable="true"
style="margin:0px 0px 20px 100px;font-size:15px;width:600px;"
>

Code in the above datatable.......The commented out output label displays the correct value for each but when the button is clicked the dialog only displays the last ones value

<p:column headerText="Check Updates" style ="width:50px;">
<!-- <h:outputLabel value="#{customerBooking.petUpdate}"></h:outputLabel> -->
<p:dialog header="#{customerBooking.petName}'s Status" widgetVar="dlg1" minHeight="60" minWidth="60" maxWidth="60">
<h:outputText value="#{customerBooking.getPetUpdate()}" />
</p:dialog>
<p:commandButton value="?" onclick="PF('dlg1').show();" style ="width:40px;">
</p:commandButton>
</p:column>

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Creating A Dialog That Add TextField Dynamically Based On A Radio Button

Dec 12, 2014

What would be the simplest way of creating a Dialog that can add TextField dynamically based on whether a radio button option from the dialog box is selected. I thought of JOptionPane.showMessageDialog and adding a JComponent though I would not be able to add a TextField on the fly and I would not be able to add ActionListeners. The dialog would initially contain some radio buttons, labels and textfields.

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When Click On New Button / All Icons Except Button Just Clicked Don't Display

Oct 16, 2014

The gist of it is to create a very basic memory game. There are 12 buttons, each associated with an icon. Every button that you click will display the icon and will stay there until clicked again. I got the bulk of it taken care of, but my issue lies with switching the icons back and forth. I can get them to display one at a time, but when I click on a new button, all the icons except the button I just clicked don't display. Essentially, only one shows up at a time.

import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.SwingConstants;

[code]....

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Feb 24, 2015

I am using JS, how we can make focus to a button during onload, the button need to get focus which is in tabbedPane tab Name : (Search Critera1) using javascript.

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How To Get Which Button Clicked In Through GetActionCommand When Button Have No Label

Sep 16, 2014

I have a JButton with a .PNG icon on it. I want to get that button click in actionPerformed Method but Jbutton have no Label... How i will know that which button clicked?

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Nov 29, 2014

I am creating a mad libs type program. This section of code is for the user to be able to make their own mad lib template (that people will be able to fill out later). The normal blanks in a mad lib are for verb, noun, adjective, adverb, etc. I cam up with 13 or so of these buttons, but it would be nice that if the user wants to add a button that they think we missed, such as 'Person in the Room' or 'Silly Location'...that the user would be able to do this. I sort of pictured there being a button that says 'add button' or something like that. Is there a ways to do this with the way I've set things up?

public class MadLibs {
public static void main(String[] args) throws IOException {
////////////////////
//TEXT PANE WINDOW//
////////////////////
//Set up a JTextPane object : The JTextPane is a specialized form of the JEditorPane
//designed especially for the editing (and display) of styled text.
final JTextPane pane = new JTextPane();

[Code] ....

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No Default Constructor

Nov 2, 2014

The LocalStudent class inherits the Student class. The IDE states an error of "no default constructor in Student class".I understand that if a LocalStudent object is created, the default constructor of its superclass (aka Student class) will be called implicitly.there is no LocalStudent object being created, so why is the default constructor of Student being called ?

The default constructor of LocalStudent is also overloaded by the created no-arg constructor containining subjects = null; . So there is no call to the superclass default constructor from the default constructor of LocalStudent.

public class Student {
private char year1;
public Student(String name, char year){
year1 = year;
}
public char getYear(){
return year1;

[code]...

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Confirm Dialog And Counter

Mar 29, 2014

This is the code I have written so far. This program calculates tax from multiple tax payers.

import javax.swing.JOptionPane;
public class CalcutateTax
{
public static void main (String [] args)

[code]....

The problem is I cant think how to ask the use if he wants to calculate tax due for another taxpayer. If the user says yes, keep calculating, otherwise exit from the program. And how do I keep count of how many people got their tax calculated? Say for example,

JOptionPane.showMessageDialog (null, " We calculated tax for " + xnumber + " number of people.");

This is the question asked on my assignment ask the user if he wants to calculate the tax due for another taxpayer if so, do it again.At the end of the main method, output a message in a dialog box that says: Hello, We calculated taxes for [number of taxpayers].replace [number of taxpayers] with the actual number of taxpyers you calculated taxes for.

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Difference Between Protected Or Default

Mar 28, 2015

I am new in java. Is there any difference between protected or default when we are talking about one package?

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How To Put Default Int / Float For JTextField

Feb 4, 2014

Will I'm tying in my code to set a default number for the JTextField that when the user decide not to put any numbers. Like let say that I want the textfield set to 0 , so then the user do not file it it won't make any problem to the program because its already has a default number.

if (stringGQ != null && stringGW != null && stringGP != null){
 stringGQ = gMQ.getText();
stringGW = gMW.getText();
stringGP = gMP.getText(); 
weightPrice_1M = Double.parseDouble(stringGW) * Double.parseDouble(stringGP);

[Code] .....

Note: This is a small part of my code. when I leave it empty it take the 0 as a value, However, when I write in text field it also take the value of a 0 and the finalTotal is also = to 0.what I'm doing wrong.

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Dialog Is Not Disposed On Windows 8

May 13, 2014

i am using a frame over which i am loading a dialog. The singleton dialog holds a progress bar. I have created my own swing worker. i am controlling the construct method of swing worker(which functions like doInBackground method).I am trying to call hidedialog from an external file. The dialog gets stuck sometimes. How do i solve it . It works fine on win7 but fails on win8.

public class LoadingProgressDialogSingleton extends com.manu.scpoweb.common.ds.client.swing.dialog.Dia log {
protected static LoadingProgressDialogSingleton oneAndOnlyProgressDialog = null;
JProgressBar progressBar = null;
DFULoadStatusBean dfuLoadStatusBean = null;

[code]....

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Default Literal For Boolean

Mar 31, 2014

what is default literal for Boolean data type?

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ArrayList - Default Size As 10

Oct 8, 2014

ArrayList l = new ArrayList();
System.out.println(l.size());

When I running the above code in eclipse the console show me the result as "0". So how to rectify this code to find default size as 10.

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Default Method In Interface

Feb 7, 2014

interface I1{
void show();
void display();
default void put(){
System.out.println("I am from interface I1");

[Code] ....

This code is not working..

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Default Access Modifier

Mar 21, 2014

class Course
{
String courseName;
}
class Entry
{
public static void main(String[] args)
{
Course c = new Course();
c.courseName="java";
System.out.println(c.courseName);
}
}

I have defined these two classes under same java project in Eclipse IDE with no package. Above two class are having default classes. class Course is also having a instance variable courseName with default access. So when we try to compile the Entry class it will give the errors while accessing the instance variable courseName on Line 6 and 7. As both the classes are having default access modifier. class Course is not visible to class Entry, then why we do not get any compilation error while creating the object of class Course on line 5?

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Output Dialog Box With Formatter

Jun 23, 2014

I am in my first Java class and this is the second assignment. I am supposed to write a program that prints a table of squares and cubes and also uses dialog boxes for the input and the output. The output should look like this:

0 0 0
1 1 1
2 4 8
3 3 27
. . .
. . .
. . .
10 100 1000

I've figured it out but my only problem is the output dialog box displays each row individually (a new dialog box pops up for each row). How do I get it to display the whole table???Here's my code:

Java Code: import java.util.Formatter;
import javax.swing.JOptionPane;
public class Homework2 {
public static void main(String[] args) {

[code]....

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If Interface Can Be Default Then Why Not Protected?

Mar 9, 2014

I was just wondering.. my understanding from everywhere I have read is interface cannot be private or protected (not at the top level) but when we declare an interface without any modifier it is default.

We know default modifier has more restricted access than protected.. public > protected > default > private

Now since an interface can be public and default then why not protected as clearly if they were allowed to be protected they could be implemented by a subclass..?

While typing this question I figured how would an interface know which is it's subclass? that is why Java allows only public i.e. any class can implement it or default i.e. any class within the package can implement.. am I right?

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Mar 19, 2014

How can I display a modal dialog in JSF 2.0 without using any faces like primefaces, icefaces...

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Initialization And Default Values

Mar 20, 2015

I have a question related to q44 of Examlab.

public static void main(String... args) {
String i;
// String i = null; that would compile
if (i == null) {// this line does not compile as i was not initialized
System.out.print("A");
} else {
System.out.print("B");
i = "A";
main("A", "B");
}
}

Why does the above code not compile although the statement String i should lead to an initialisation of i to the value of null which is the default value for Strings.

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Default Initialization To Appropriate Value By Compiler

Feb 20, 2014

I remember reading Instance variables & local variables (in methods) are initialized to appropriate value by the compiler.

Is this true for static class variables and variables in nested classes ?

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How To Auto Correct POS Tag

Sep 13, 2014

How to write a program which will automatically correct the parts of speech of a document.

Example: say in my document I have My/PRONOUN name/PRONOUN is/VERB Jhon/NOUN. He/PRONOUN is/VERB going/ADJ to/PREPOSITION school/NOUN

Now I need to change My/PRONOUN name/NOUN is/VERB Jhon/NOUN. He/PRONOUN is/VERB going/VERB to/PREPOSITION school/NOUN...How to do using java. The document may contain 100 lines tagged with parts of speech.

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