Why JFrame Not Showing Components Such As JComboBoxes

Sep 4, 2014

my JFrame is not showing anything, (Perhaps test it in your own IDE on your own PCs/laptop)

// Project: RestaurantBillCalculator.java Calculates a table's bill.
 
// Import statements for different classes
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.JComboBox;

[code]....

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Swing/AWT/SWT :: Panel Not Showing Added Components

Apr 27, 2014

My panel named panelIncomeInfo are not showing the components that I have added.

public class PayrollGUI {
private JPanel panelIncomeInfo = new JPanel ();
private JPanel panel = new JPanel ();
private JPanel panelPayCheckInfo = new JPanel ();
private JButton close = new JButton ("Close");

[Code] .....

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Resize JFrame To Show Components

Apr 9, 2014

I have the following project:

Java Code:

package boxmatrics;

import java.awt.BorderLayout;
import java.awt.FlowLayout;
import javax.swing.JFrame;

public class BoxMatrics {
public static void main(String[] args) {

[code]....

Why I have to resize the window(JFrame window) manually, with the mouse, in order to see the components?Where do I need to call repaint(); ?

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Swing/AWT/SWT :: JPanel In JFrame - Components Do Not Appear

Apr 4, 2014

I trying to replace original (and empty) JPanel in JFrame with my own made one, components does no appear right, when I pass the mouse first button appears:

MainViewClass:
...
private void initComponents() {
...
MenujPanel = new MenuSuperior();
MenujPanel.setBorder(
BorderFactory.createTitledBorder("Dados Pessoais"));

[Code] .....

Here is the video:

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When Close Out Singleton JFrame And Then Open It Again - Components Are Gone

Nov 30, 2014

I made UpdateInmateDisplayer a Singleton so that I could access it from the private class ButtonHandler. It works to display the first inmate's number on the screen but when I close out the window and click the Book Inmate button in CurInmatesDisplayer again, it only shows a blank window. I've tried adding the components again from the ButtonHandler in CurInmatesDisplayer but it doesn't work.

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Rectangle Isn't Showing Up In JFrame

Nov 14, 2014

MyGraphics worked before I added a background but, even now when I take the background away it isn't showing up.

package com.snow.game;
import javax.swing.*;
import java.awt.*;
class MyGraphics extends JComponent { //creating a class for graphics
public void draw(Graphics g){
//calling Graphics making a new graphics (g) now you can use it to make objects
g.drawRect(10, 10, 50, 50); //Draws a rectangle

[Code] ......

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JPanel Not Showing Up In JFrame

Apr 5, 2014

I'm attempting to add a Jpanel in a JFrame but it isn't working out.

import javax.swing.JFrame;
import javax.swing.JPanel;
public class stepone {
public static void main (String[]args){
JFrame frame = new JFrame("CSC LAB 12");
JPanel colorJPanel = new JPanel();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

[code]....

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Scrollpane Scrollbars To Entire Jframe When Resizing / Adding Components

Jul 23, 2013

I am trying to add scrollbars to my frame containing many different components and appearing when user resizes the window with the mouse adds pictures and admin of this online application adds labels or other components.

I want scrollbars to appear when the frame  is resized and has components you don't see under so you can scroll down.
 
If I have for example this code, how i add the scrollbars when i make frame smaller ?
 
public class Test extends JFrame {
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
   EventQueue.invokeLater(new Runnable() {

[Code] ....

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Swing/AWT/SWT :: Buttons Not Showing On JFrame

Aug 30, 2014

This is right from a book I'm reading but it doesn't work. The problem is to write an application that lets you determine the integer value returned by the InputEvent method getModifiers() when you click your left, right, or middle mouse button on a JFrame.

This is the code copied directly from the book. What is missing:

import java.awt.event.InputEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.swing.JFrame;
public class JLeftOrRight {

[Code] ......

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Get Input Of Several JComboBoxes

Jul 24, 2014

I'm trying to get the input of several JComboBoxes and execute a statement depending on which option the user chose for example if destination combo Box = japan duration combo box = 10 days and hotel combox = hotel then print line "welcome" I have tried many options but not getting the desired outcome. at the moment I'm using an if statement with only 2 of 3 of the J combo boxes but it's not working here's my code:

String[] Dest = new String[] {"Select Destination","Crete", "Paris", "Croatia"};
String[] Accomodation = new String[] {"Select your Accomodation","Hotel", "Villa", "Bed in Breakfast","Youth Hostel"};
JComboBox<String> comboDest1 = new JComboBox<String>(Dest);
JComboBox<String> comboAccom1 = new JComboBox<String>(Accomodation);
 
[code]....

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Swing/AWT/SWT :: Making Two JComboboxes To Be In Sync When One Selects Item From Dropdownlist?

Jan 17, 2015

basically I would like to know how to to the following Java. Example... Say I have one JComboBox, and it is populated with 10 items which reads from a text file ("apple","banana","kiwi","orange","grape fruit"), and the other JComboBox holds the price ($1,$2,$4, etc etc...you get the drift).

How do I make in such a way when I select for example banana from the JCombobox that it syncs the other JCombox to the correct price?

Basically syncing the two JCombobox so that you do not need to select the price yourself - it does it automatically for you.

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Get Background Image Showing Other Two Are Not Showing On Screen

Jan 20, 2015

public void paint(Graphics g) {
g.drawImage(Background, bg1.getbX(), bg1.getbY(), this);
for(int i=0;i==400;i+=10){
g.drawImage(block1,fg1.getBlockX(),fg1.getBlockY(),this);
g.drawImage(block2,fg1.getBlockX(),fg1.getBlockY()+10,this);
}
}

This is what im dealing with right now. When i click run i only get the background image showing the other two are not showing on the screen.

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Swing/AWT/SWT :: How To Display Two JComboBoxes Side By Side

Jan 20, 2015

I am trying to display two JComboBoxes side by side. I can successfully display them as part of a BorderLayout if they are in the North and East, but when I try to display them side by side in the same area, eg North, only one of the combo boxes gets displayed.

package selectingshapes;
import java.awt.Graphics;
import java.awt.Color;
import javax.swing.JPanel;
import java.awt.Graphics2D;
import java.awt.FlowLayout;
import java.awt.event.ItemEvent;

[Code] .....

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Constructor Jframe In Class Jframe Not Be Applied To Types

Jun 22, 2014

So I have this line of code...

ioexception11.addChoosableFileFilter(new Jframe());

And when I compile it gives me...

error: constructor Jframe in class Jframe cannot be applied to given types;
ioexception11.addChoosableFileFilter(new Jframe());

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Set Components To GridbagLayout

Jan 1, 2014

I decide to make a new GUI just for fun and practise and i want to learn more about Layouts.. right know i am try to understand some staff about GridBagLayout.

I want to make a GUI with this Layout :

So..first i am a frame with borderlayout then i put a JMenuBar and bla bla bla and i create panel with GridLayout which i put on myFrame.add(panel1,BorderLayout.WEST) and also i make an another JPanel which i put of the Center of main Frame (myFrame.add(panel2,BorderLayout.Center))

when i run the program i get this GUI :

Now the problem is that i can't put the JButton on the top of the gridLayout just to look like the first picture.. i Read about anchor and i try to

gbc.anchor = GridBagConstraints.NORTH; but without results.. still the components are on the middle of the JPanel..

Here is my Code () :

Java Code:

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;

[Code] .....

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How To Sequence Through Components

Mar 28, 2014

I know my problem is my lack of understanding of OOP but I have searched for a solution and can't even seem to get close.This is a very simplified version of what I will need to do. I have a button and six textboxes. When the button is pressed I want to take the text from textbox6 and place it in textbox1, textbox2, textbox3, textbox4, and textbox5.

I need sometthing better then this brut force method.Java Code:

package textboxes;
public class TextBoxesGUI extends javax.swing.JFrame {
public String NewText;
public TextBoxesGUI() {
initComponents();

[code]....

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JSF :: Extending Primefaces 5 Components

Jul 25, 2014

Really need some simple and complete example on how to extends components (graphically and functionally) for primefaces 5.

For example I can't figure how to add custom attributes to existing component or define default values for existing attributes.

Is there any tutorial or a basic common way to achieve this goal or each component have to be extended in its way?

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JSF :: Components Inside Tag View

Jun 8, 2014

In some examples I see jsf components inside the tag view, other times dont.

- Is it important to put all jsf components inside "the view" tag?
- What would be the difference not putting them inside this tag?

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Painting 2 Components From Different Classes

Jul 14, 2014

I want to make a simple Table Tennis game. I have 2 drawing classes. 1st should draw oval and 2nd rectangle. But second class, which should draw rectangle doesn't work and if i use it together with oval class, then oval doesn't appear too.

Java Code:

public static void main(String[] args) throws InterruptedException
{
Intro i = new Intro();
Pall pall = new Pall();
Laud laud = new Laud();
i.frameID().add(pall); // this adds oval
i.frameID().add(laud); // this adds rectangle
i.frameID().pack();
i.frameID().setSize(400, 400);

[code]...

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How To Dispose Off Native Components

Jan 7, 2014

Currently I get errors when trying to exit my JFrame without playing the youtube video I have set it to load.

My Code:

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
import chrriis.dj.nativeswing.swtimpl.NativeInterface;

[Code] ....

If it's relevant the error:
java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)

[Code] .....

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Call A JFrame From Another JFrame?

Jan 23, 2015

how we call a jFrame from another jFrame .

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JTextPane Not Printing Components Inside It

Jun 10, 2014

As I couldn't find a way to do the printing of multiple items on one page, I decided to test out my idea. I found that I could have a table in a JTextPane.

However, whenever I got to print, my table will vanish. It doesn't even need to go to the printer. Just bringing up the print dialog will make it vanish like tax money in D.C.

(Also, I'm not really that familiar with JTextPane and it seems harder than JTextArea. Which part is controlling the font of my regular text by the way? I think it might be tableParagraph but it could also be the base font. I can try and fiddle with both and waste paper but where the font is being set.

Setting the font with setFont() will vanish my table. )

Somehow, I'm thinking that the solution might be JTextPane.setContentType() or setEditorKit() or both. (I"m not that familiar with either, but I fear that it's only being set to handle text, hence any graphics are being lost.)

Here is my code:

import java.awt.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.text.*;
public class AddingTables {
JTextPane textPane;
private Object[][] rows;
private Object[] colNames;
 
[Code] ....

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Swing/AWT/SWT :: Why Must All Components In A Container Have The Same Alignment

Dec 10, 2014

I have a JPanel with vertical BoxLayout. It contains four components. I set the JPanel to LEFT_ALIGNMENT, which has no effect on its components. I set the first component to LEFT_ALIGNMENT, which has no effect. Only after I have set all four components to LEFT_ALIGNMENT do any of them align properly.

This suggests that it is impossible to have varying alignments in a container. They must all be the same alignment.

I accept that this is just the way things are: "Java works in mysterious ways." And I'm sure that it is possible to work around this limitation by stacking boxes that themselves have different internal alignments.

But I still wonder what in the world was going on in the minds of the Java developers. Is there a rational reason for this oddity?

This raises my most serious criticism of Swing: the hidden gotcha. Swing is a tangled mess of cross-connecting requirements that are impossible to divine by simple inspection of the documentation. If you want to use, say, a JRadioButton, it's not enough to study the documentation on JRadioButtons; you must also consult lots of documents for which there is no obvious connection to JRadioButton other than it being part of Swing.

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Swing/AWT/SWT :: How To Serialize Java Components

Mar 9, 2015

I am trying to send a JPanel object to the server. While doing so I get the error -

java.io.NotSerializableException: javax.swing.filechooser.WindowsFileSystemView
at java.io.ObjectOutputStream.writeObject0(Unknown Source)
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source)
at java.io.ObjectOutputStream.writeSerialData(Unknown Source)
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)

[code]....

How to fix this error?

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JSF :: Binding Components And Setting ValueExpression?

Dec 19, 2014

dynamically create tabs by pressing a button, each tab has Primefaces input texts in which i'll be adding stuff and with a Submit button i'm submitting the form.

My issue now is this; although I can create more buttons through my managed bean, I cannot set the ValueExpression to the InputTexts. When I do:

inputName.setValueExpression("value", createValueExpression("#{cdiBean.name}",String.class)); it doesn't work.

The createValueExpression is a static method in my managed bean and it returns a ValueExpression. I'm most certain I found it online, not sure where though, it's been over a month since the last time I worked with this topic.

Anyway, is my whole "methodology" correct? Should I do anything differently?

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Swing/AWT/SWT :: Auto Resize Components

Sep 5, 2014

I have swing UI designed and I want the components to resize when the frame is manually resized. The design is as shown in the fig Project UI.jpg

The panel 4 and panel 5 will change their contents according to the list item clicked. Panel 4 just has text area but panel 5 a panel with numerous components as label, combo box, text field,check box will be present.Now if the frame resizes, I won't all the components to resize according to the frame size.

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