Set JLabel Text After JButton Press
May 12, 2015
I have four buttons with different names and depending on which button is pressed I want to change the label to be displayed. Center is the name of the label the other directions are buttons. The label should change if a different button is pressed. The error I get is that it cannot be converted to String.
public void actionPerformed(ActionEvent event){
Object source = event.getSource();
if (source == east){
center.setText(east);
}
if (source == west){
center.setText(west);
[code]...
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Feb 25, 2015
Here's my coding so far...I want to be able to change what the JLabel says when clicking on one of the buttons for example : when clicking on UP i want it to say "Going Up!"...how do i do this?
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
public class BorderLayoutJFrame extends JFrame {
[Code] .......
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Apr 15, 2014
I am trying to do a program about a contact agenda, now, I have one JPanel that contains three sub panels (GridLayout(1,3)) where I have in the left the picture of the Contact, the middle one is not important, but the right one contains 4 JTextFields with information of the contact and one JCheckBox that indicates if the contact is a favorite or not. The thing is that I am only able to show the first contact, but I want to be able to scroll between the contacts with a Button that I have in another panel. I think I am actually scrolling among the contacts, but the panel with the information from the contact is not updating the information...
public class PanelInfoContacto extends JPanel{
// -----------------------------------------------------------------
// Constructores
// -----------------------------------------------------------------
/**
* Construye el panel. <br/>
* @param contacto - es una referencia al contacto que muestra. contacto != null.
*/
public PanelInfoContacto(Contacto contacto){
setLayout(new GridLayout(1,3));
[Code] .....
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Apr 11, 2015
I show a JDialog window and this window has 3 buttons when I press one of them it should close the window, how do I do that?
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Feb 18, 2014
I'm using NetBeans.
I have a JFrame with four JPanels, SensorLL, SensorLC, SensorCR and SensorRR. They are instances of the class SensorUI. Each has a JLabel called Sensor.
The class SensorUI has a method writeSensor that writes to the JLabel "Sensor". I will have four temperature sensors. I have not started the code to read the temperature sensors yet. I will have a timer that will run once a second. When it fires I will read the sensors and display the result in the
JLabel "Sensor" in each jPanel.
I use MyMain to call FrameDemo and create the JFrame and a method
in FrameDemo to add the JPanels using addObject.
I can use SensorLL.writeSensor will write text to JLabel Sensor while in Mymain.
Then I start the timer ReadSensor.
When it times out it calls SampleSensors
For an experiment, while in SampleSensors I try to write to the JLabel in the instance SensorLL with
SensorLL.writeSensor("xx_");
I can't because it says it can't find the symbol variable SensorLL in SampleSensors class.
How can I "get to" that JLabel text when ever I need to?
Java Code:
public class MyMain {
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
// TODO code application logic here
//SensorUI SensorLL = null;
System.out.println("Start of main");
//Schedule a job for the event-dispatching thread:
//creating and showing this application's GUI.
FrameDemo.createAndShowGUI();
[Code] .......
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Oct 2, 2014
The code was,
messageLabel = new JLabel("Top buttons change the panel color and bottom radio buttons change the text color.");
messageLabel.setHorizontalTextPosition(SwingConstants.CENTER);
messageLabel.setVerticalAlignment(SwingConstants.CENTER);
The text always displays in top-center part of the center panel. i want to align it as center-center horizontally and vertically. The problem could be, bcoz the jlabel text is inside a constructor but im not sure. The whole code is
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ColorSample extends JFrame {
private JPanel TopPanel;
[Code] .....
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Apr 24, 2014
I am trying to write an application where if you click and hold down on 1 button and move the mouse to another button and release the text on the 2 buttons should be switched around.I have a print line so I can se the text are supposed to get switched around but it is just not happening in the GUI.
I attached all my code in case the flaw was to find somewhere else in the code, but the functionality I am working on is the lines 76 to 121.
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
[code]....
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Dec 4, 2014
Ok, so I am trying to learn about JFrames and JPanels. I have figured out buttons, layouts, etc. What im having trouble with is accessing the label object from the ButtonHandler class since it is static and I need my JLabel to be non-static so that it can change. Basically, I want JLabel to change to a pre-determined text string once a button is pressed. Here's what I have so far
package makewindow;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
[code]....
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May 26, 2014
Create a dnd (dungeons and dragons) character creator and back ground generator, have it display and run on a gui, to start with i decided to creator the gui as i go so i can see the progress, first i tried eclipse and windows builder, well after 1 day of reinstalling windows builder in about 5 different ways from multiple guides and sometimes getting it to partly work ...
After doing some more research I have figured out how to get the main program to display the gui . Heres what i have:
package com.mrgreaper;
import javax.swing.*;
public class MainWindow {
private JPanel mainWindow;
private JLabel playerlbl;
private JLabel playerNamelbl;
[Code] .....
Now this works fine and the gui displays when the program is run but I can't change the text of any of the jlabels or textfield. If I try to do it in the main class i need to change them from private to public static but then in the form builder it says "cannot bind to static field *name of field*" but if i take static off then i cant change its value!
From what i understand this is because the window is an instance, so how to i change the value in that instance? I could put all my code in the one class, the one that creates the gui, but i really want it seperate, i would like the gui to update as the code runs... So how do i do it, how do i change the contents of jlabels on the fly, read the contents of text boxes on the fly etc....
I tried adding a getter setter
public void setCharFirst(JLabel charFirst) {
this.charFirst = charFirst;
}
in the MainWindow.class
Then i tried to set it from my main function
MainWindow.setCharFirst("test");
but it cant access it as my main function is static and it is not now can i make it static...
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Nov 18, 2014
why JLabel setText method is not setting up the text dynamically even though i am calling repaint() once i set the text? Code snippet is below
Locale currentLocale = new Locale(panel.getCountryLocal(), panel.getCountry());
ResourceBundle messages = ResourceBundle.getBundle(Constants.messageBundle, currentLocale);
messages = Panel.getMessages();
String displayString = messages.getString("101022");
[code]....
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Nov 11, 2014
I want to create 3 JTextFields in a row with all being of equal size.But my first Text field gets so wide than the other two.After adding each component at a time and seeing what causes the problem I realized that if I type a long text for the JLabel that's when this problem occurs.If I reduce the length of the text in the JLabel JTextFields get into the sizes I want. Here's my code
import java.awt.*;
import java.awt.event.*;
import java.lang.Math;
public class Calculator1 extends JFrame {
JTextField value1=new JTextField("0");
JTextField value2=new JTextField("0");
[Code] ....
How can I stop the JTextFields changing size when I change the JLabel label1's text length...
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Sep 20, 2014
I don't get what I missed in the code. I used the example of changing the text of a button by clicking on it, but instead I also added a JLabel and tried to make the button change its text instead, but it didn't work. What did I do wrong?
import java.awt.event.*;
import java.awt.*;
import javax.swing.*;
class Buttone implements ActionListener{
JLabel label;
JButton button;
[Code] ....
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Jun 6, 2014
So, Once again I'm attempting to make a Who Wants to Be a Millionaire GUI game. This is the actual game screen code
package WWTBAM;
import java.awt.BorderLayout;
public class GUIGame extends JFrame implements ActionListener {
public static int moves = 0;
public static boolean finished = false;
public static boolean correct = true;
[Code] ....
When ever try and change the buttons text outside of the actual GUIGame constructor i can't. Like in the main method or the action listener.
The code won't work if you copy paste because it's a part of a larger package.
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Feb 25, 2015
i just started java and I'm trying to change the JLabel text by clicking on the JButton however it isn't working,
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JLabel;
public class BorderLayoutJFrame extends JFrame
{
public static final int WIDTH = 400;
public static final int HEIGHT = 400;
[Code]...
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Aug 6, 2014
I have made a window using JFrame and on my JPanel I have added 3 components: 2 JTextFields ("field1" and "field2") and inbetween them a JButton ("switch"). My goal is to switch the value of field1 to field2 and vice versa when the JButton is clicked. I thought this ActionListener which I have added to my JButton would achieve my goal:
public void actionPerformed(ActionEvent e) {
field2.setText(field1.getText());
field1.setText(field2.getText());
}
However, it changes the value of field2 into the value of field1 but not the other way around.
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Apr 7, 2014
I am trying to have a Jbutton (blocker02) act like a wall that will not allow a moving Jbutton to pass through. I tried using " if (blocker02. getBounds (). intersects(r_wall)) but it hasn't been successful.
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.geom.Rectangle2D;
[code]....
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May 6, 2014
import javax.swing.*;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.*;
[code]....
My issues is at the bottom, I can't get the clear button to clear, well it clears but it also show the JOptionPane. I couldn't find the edit button on the page
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Apr 5, 2014
Java Code:
package --.-----.game;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.List;
public class InputHandler implements KeyListener{
public InputHandler(Game game) {
game.addKeyListener(this);
[Code] ....
I'm trying to figure out why this doesn't print "This works" if I press or release anything. It just ignores the keys that I press.
Does this class look right?
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Mar 22, 2014
I have been reading some java guides here [URL] .... and was trying to put a bit of what I have learnt into practice but am having some difficulty. Basically, using netbeans IDE I have created a new jFrameform so that I can place swing components in design mode. What I want to create isnt overly complicated but I just cant seem to get it. In design I have simply added a panel and a button. When I press the button I want to display an image I have located at:
/resources/images/numbers/1.png.
This is my code so far (most of it has been automatically generated from me adding things via design mode:
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package test;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.*;
import javax.imageio.*;
[Code] ....
I assume I need something like below somewhere , do i need to create a draw method? if so how do I call it as it is expecting graphics2d as a parameter, what would I pass into it?
BufferedImage img = null;
try {
img = ImageIO.read(new File("/resources/images/numbers/1.png"));
} catch (IOException e) {
}
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Jul 1, 2014
I'm on windows 8 and I want to use notepad or notepad++ to simulate the press of the space bar every 15 minutes so my computer doesn't auto lock.
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Aug 16, 2014
i want to make a piece of software that enables me to Press a key on my keyboard and then it will play a Sound. But i Want to be able to do it when i'm playing.Can code The Sound an Keys
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Nov 3, 2014
I wanted to try out using a KeyListener to read what key I press so it can paint a circle in my frame, but I can't get it to work?
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.Random;
[Code] ....
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Dec 23, 2013
I am newbie in java and little bit known to apex. I write an java code and compile it to class file. Now i want to call that class file from an push of button on apex. When button is pushed i need some arguments to be password to java class files . For arguments i need to take the item value from the apex page.
But i stuck on how to call that java class file from apex. On command prompt when i ran java class file, its working.
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May 13, 2015
This is the code that I wrote but I have two problem with two buttons one of them ... I want to delete the selected text inside the text Area which represented as b[8] and the other button that I want to select parts of the texts which represented as b[0]....
Here is the code..
package KOSAR2;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
[Code] .....
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Dec 12, 2014
I am checking how to do following task.
01. pickup the selected text file and read the line by line and output the text in to visual text pane.
what i did:.
01. I wrote code that read the text file and output in to jave console/ also some of the interface.
the code read txt file:
Java Code:
String fileName = "C:/Users/lakshan/Desktop/lawyer.txt";
File textFile = new File(fileName);
Scanner in = new Scanner (textFile);
while(in.hasNextLine()){
[code]....
so it will read any text file dynamically and output to the text pane in interface. I think scanner code must be execute after the select the file from the browser and set the scanned result in to variable. then later out put the var as string in some jswing component?
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Oct 18, 2014
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
[Code]....
I am trying to Make A GUI which has a Jcombo box i also want it to have a jlabel that up dates depending on which option the user selects from the JcomboBox
for exampl if i select lion i want it to say you chose lion on the Jlabel and if i choose ostrich i want it to say ostrich and so on
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