Unable To Add Label To GUI

Apr 17, 2014

I am trying to add a label to my gui, i am using the following code but it is not showing.

contentPane = this.getContentPane();
contentPane.setBackground(Color.GREEN);
contentPane.setLayout(null);
JLabel greeting = new JLabel("hello");
greeting.setFont(new Font("SansSerif", Font.PLAIN, 18));
contentPane.add(greeting);
greeting.setVisible(true);

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Unable To Set Text To A Label Multiple Times In Same Program

Aug 5, 2014

I am developing a java swing application. In which i want to set a different text to a label in same program ( in single JFrame). I dont want to use another JFrame instead i want to use setText method of java and set different text to a label at different intervals of time according to my need.

I am using java 1.7 sdk and pupy linux as OS. Below i am giving source code.

What i am doing is in constructor of class i am setting an image to JFrame and setting text "Welcom...". And when user clicks on this JFrame a method is called which will clear the text "Welcome.." and sets new text to another label "Enter...." and from there another method is called and it clears label "Enter..." and sets a text "Plzz wait..". and yet there are more methods, i havnt provided here.

But what is happening is it shows welcome text and then directly Plzz wait..

Its not showing text Enter... because control is finished after last method gets executed.

My concern is i want to show all the setText (my messages) in a sequence. Without using another JFrame. There is no any user input other than user will click on first welcome page.

public class BackgroundFrame extends javax.swing.JFrame {

JLabel setTitle1;
JLabel setTitle2;
JLabel setTitle3;
JLabel setTitle4;

[Code] ....

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Jun 5, 2014

I try to bind the text-property of a selected cell of a TreeView to a label. So if the user click on a cell in the treeview the label should show the cell text. Now I am quite confused about the options I got to do so. Should I use label.textProperty().bind( ... ??? ... ) The treeview.onMouseClicked()property? or something different?

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Putting ImageIcon Into Label (Original Size) By Clicking On Label (Thumbnail Created Before)

Nov 6, 2014

I'm doing a software Java GUI - JFrame form like this:

1. The user wants to click on a button that opens a bunch of images that will be displayed as thumbnail in the bottom of the JFrame .
2. Then the user wants to select/click one of the thumbnail and make appear the corresponding image in it's original size on above(center) of the JFrame.

For doing this I used 3 JPanel.

One contains a JButton that opens the jfilechoser dialog window,
the second "panelPreview" is for putting the thumbnails created,
and the third "panelGrande" is for the image in it's original size.

The firs part "1." is ok.

But in the second part : I got one error when I want to put the ImageIcon in to the JLabel with the further intent of displaying it.

lblBig(imgIcoVett[i]);

In this project I'm dealing with arrays of ImageIcons and JLabels, so it's a bit advanced level for me, so I'm not sure that I wrote right the part of the MouseListener too.

The error displayed by netbeans says "cannot find symbol symbol: method lbl (ImageIcon) local variables referenced from an inner class must be final or effectively final"

Here I attach the project I did with netbeans"AAAD Unlayout 2.zip", but if you just need the highlight of the code, here it is too:
 
private javax.swing.JButton btnOpenfile;
private javax.swing.JFileChooser jFileChooser1;
private javax.swing.JPanel jPanel1;
private javax.swing.JLabel lblBig;
private javax.swing.JPanel panelGrande;
private javax.swing.JPanel panelPreview;

[Code] ....

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Get Text From TextField To A Label But Label Is On Different Frame

Nov 18, 2014

I need a code to get a text from a textField to a label but the label is on a different frame, i will give u an example of what i have so far. so this is the main:

package albaestate;
public class AlbaEstate {
public static void main(String[] args) {
Frame1 first = new Frame1();
first.setVisible(true);
}

/*[B]now i have the first frame where i input the information[/B]*/
 
package albaestate;
public class Frame1 extends javax.swing.JFrame { 
public Frame1() {
initComponents();

[Code] ....

What i need is to input the code so that in jLabel5 i get the text from jTextField1 in Frame1; in jLabel6 i need the text from jTextField2 also in Frame1; and in jLabel7 i want to display the calculation of what the jbutton1 in Frame1 is calculating.

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How To Put A Label

Dec 12, 2014

I can't seem to put a label on this code:

import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class number2 extends Frame {
int x = 0;
int y = 0;
public void run() {
addMouseListener(new mymouselistener());

[code]....

how would I put a label on it?

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Setting A Drive Label

Sep 22, 2014

I have been playing around with a snippet I wrote to get the Label on a drive (below). It works fine for me (though I will take any constructive criticism). My question is whether the is a way to set the drive label, purely with Java. I know I could call command line, or even resort to using the Windows API

import java.util.List;
import java.io.File;
import java.util.Arrays;

[Code]....

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Nothing Except Frame And Label Shows Up

Apr 3, 2014

Java Code:

import java.awt.*;
import java.awt.event.*;
public class TestFrame extends Frame implements ActionListener {
static int i;
Frame fr;
Button b1,b2;
Image img[]=new Image[3];

[Code] .....

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Apr 14, 2014

I am a little stuck, the aim it reset the gui and the correct label.

I only have the gui to reset, how do rest the correct label?(footer)

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How To Use Validation On Label Or Textfield In Java

Apr 28, 2014

How to use validation on a label or textfield in java.

I have a textfield and i want that only username with @ sign will be taken by the program or gives an error.or a textfield that can only take numeric values or whatever the developer wants to take from user..

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How To Make A Button That Change The Label

Jan 29, 2014

How can i code this differently so that when i click one of the button it changes the image to the red.jpg or green.jpg?

Java Code:

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
public class GUI{
public static void main(String[] args){
JFrame window = new JFrame("Test");

[Code]...

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Swing/AWT/SWT :: Label Font Not Changing?

Feb 19, 2015

It's very simple, I've added an AWT component/control (specifically a Choice object to a Frame. It's a pop-up menu by any other name.

Above the pop-up, there's a label. I'm trying to change its font to no success.

* I create Label object called label1: Label label1 = new Label("This is a pop-up")
* I create a Font object called f: Font f = new Font("Times New Roman, Font.BOLD, 18)
* I apply the new font to the label: (in AFrame's constructor) label1,setFont(f)

When displayed the label's font seems to be stuck on Arialor something similar. Changing the point size however does have an effect.

import java.awt.Choice;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
/**
* Defines a 'pop-up' AWT control that will be added to AFrame.
* It extends Choice - I may need extra functionality later.
*/

public class APopUp extends Choice implements ItemListener {
// instance variables
int noi; // no of items
String selected; // item selected from choice

[Code] ....

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Jan 9, 2015

I have a button whose text is being cutoff. How can I tell javafx that the button should be as big as the text in it and so no cutting off text happens?

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Oct 2, 2014

I'm trying to display all the values from a for loop into a label control in my application. Problem is, its only displaying the last number.
 
--------------------------------------------Code----------------------------------------------
 
int lottoNumbers1 = Integer.parseInt(txtLotteryNumbers1.getText());
        int lottoNumbers2 = Integer.parseInt(txtLotteryNumbers2.getText());
        int lottoNumbers3 = Integer.parseInt(txtLotteryNumbers3.getText());
        int lottoNumbers4 = Integer.parseInt(txtLotteryNumbers4.getText());
        int lottoNumbers5 = Integer.parseInt(txtLotteryNumbers5.getText());
        //int lottoNumbers6 = Integer.parseInt(txtLotteryNumbers6.getText());

[Code]...

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May 14, 2014

I am trying to write a code where when I press Enter the text in the text box appear on next line of label. However every new text is getting printed on the same line..
 
Here is my code:
 
import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class ChatBox extends Applet implements ActionListener
{
  TextField firstNum, secondNum, resultNum;
  Label label1;

[Code] .....

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SetVisible Not Working When Starting On False (AWT Label)

Jul 24, 2014

I'm trying to create a Label using AWT (not swing) that is invisible on startup but shows up when pressung a button. Here's the relevant code:

Label:

updated = makeConfirmedLabel("Updated!");
updated.setVisible(false);

Button:

update = new Button("Update");
update.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent evt) {
MainComponent.updateComponents();
System.out.println(updated.isVisible());
updated.setVisible(true);
System.out.println(updated.isVisible());
}
});

When I press the button I get the following output in console:
false
true

If I start with setVisible(true) and use updated.setVisible(!updated.isVisible()) it works fine. Why can't I start with it hidden??

I tried to use updated.revalidate() after setting it visible. That made it work but it makes the whole UI flicker when pushing the button which isnt desired.

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Simple Frame Button And Text Label

Jun 2, 2014

why this code doesnt work? Its suppose to be a simple frame with a button that puts text to the frame when u click it. The problem is actionPerformed method, when it tries to call the stuff inside the constructor it all goes wrong. I switched the method body with a system.out.println() and it all works fine.

import java.java.awt.Label;
import java.awt.Button
import java.awt.BorderLayout;
import java.event.*;
public class TheClass implements ActionListener {
public TheConstructor() {

[code]....

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How To Display New Panel With Text Field And Label It

Apr 19, 2014

I want to display a new panel with a text field and a label in it, and add the text from that textfield to an array list each time i press enter. here is what i am trying to do:

public JPanel startStateNoPanel(){
startStateNoPanel = new JPanel(null);
startStateNoPanel.setBackground(Color.YELLOW);
stateNo = new JLabel();
stateNo.setText("Enter Start State Number: ");
stateNo.setBounds(5,40,200,20);

[Code]...

Here is my method to add Panel to Action Panel which is further added to the Frame

public void addPanel(JPanel panel, String name){
ActionPanel.add(panel, name); // there is the card layout on action panel
}

symbolCountPanel is a panel which consists of a text field to take numberOf alphabets

if((symbolCountPanel.isShowing()) && (ex.getSource() == symbolCountF)){
if(!isTextFieldEmpty(symbolCountF)){
new SwingWorker<Void, Void>() {
protected Void doInBackground() throws Exception {
AlphabetCountF.setText(symbolCountF.getText());
setNumberOfAlphabets(Integer.parseInt(symbolCountF.getText())); // setting Number of Alphabets

[Code]....

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Call Method In HTML Text On Label

Sep 7, 2014

I want to set an html text on al label, but also call a method.

I tried:

Java Code:

scoreMens.setText("<html>joejoe<BR>jaja<BR</html>" + naamSpeler.laatKaartenZien()); mh_sh_highlight_all('java');

But the naamSpeler.laatKaartenZien(), which returns a string, doesn't show on the label. Is there a way to call a method and use a html text on a label?

The name of the thread should be "call method in html text on label"

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Feb 8, 2014

I'm trying to setup a function that takes input from a user and prints it onto a label and updates it per entry. The updating would occur through removing the old label and then adding a label with the updated value. The text would be center-aligned. While I'm able to get the label to print the current value of "entry", it does so without removing the label with the old value.

I tried reversing the add(label) and remove(label) to see if there is a syntax error with remove, and I determined from the label not being there at all that remove was called correctly. I have kept the loop infinite for debugging purposes to work with various test cases as they come to me.

Java Code:

import acm.graphics.*;
import acm.program.*;
public class testCanvas extends ConsoleProgram {
public void run() {
GCanvas canvas = new GCanvas();
add(canvas);
String entry ="";

[Code] .....

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Jan 17, 2015

I'm working on an applet for my class. I decided to use AWT even though it's really old.

I'm having trouble with the labels on my program. They don't show up until I click another tab in the browser and then go back to it each time after I click on a button. I tried to use repaint() but it doesn't seem to work. What can I do?

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.awt.event.ActionListener;
import java.awt.color.*;
public class FinalTwo extends Applet implements ActionListener{
Button b1;
Button b2;

[Code]...

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Jan 30, 2015

How to create histogram in JavaFX ? Is it possible to do it using BarChart? how to label the bin edges (ticks)?

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May 19, 2014

I just want to add a text field and a label next to it that says "Hourly Wage".

Also, when I run this in Xcode, it reports back with "Shell Script Invocation Error" "Command usr/bin/java failed with exit code 1".

Here's my program:
 
package summerIncome;
import java.util.Scanner;
 public class SummerIncomeCalculator {
public static void main(String[] args) {
jFrame frame = new Jframe("Summer Income Calculator");
frame.setSize(400,300);

[Code] .....

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Feb 22, 2015

I'm writing a graphical program with several Label objects. One of them is supposed to constantly change color. I tried to do it with while loop like this:

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However, the rest of the code (after the loop) is never reached because the loop never ends. Is it possible to use infinite loop like this? And, is there any other way to handle permanent processes that are supposed to run as long as the program is running (like, in this case, blinking Label)?

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May 27, 2014

So I just processed this rectangular array and made myself a table. I want to put a label for each column to identify what the values are. My attempt at this failed miserably, because it looks horrible. Here is the necessary code.

Java Code:

System.out.println();
System.out.println("FORMATTED RESULTS");
System.out.println(results);
values[rowCount][0] = currency.format(monthlyInvestment);
values[rowCount][1] = percent.format(interestRate/100);
values[rowCount][2] = Integer.toString(years);
values[rowCount][3] = currency.format(futureValue);
rowCount++;

[Code] .....

If you are to compile this yourself, you would see the horrible output at the end. I would like to know how to properly align each label with its corresponding column.

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Mar 10, 2014

How can i add a background image for this code without disappearing the button and label? I want a frame that has a background and still shows the buttons and label that I place. and how can I insert Buffered Reader in this code, this is a file organizer, but it only shows first line of a text file. I want to show the whole text file. And is it possible to also show path of the file?

import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JTextField;
import java.awt.Color;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Scanner;

[code]....

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