Swing/AWT/SWT :: Add Buttons Dynamically In A New Jpanel On Click Of A Button

Jun 20, 2014

Am trying to add buttons dynamically in a new Jpanel on click of a button. i am getting new Jpanel but not able to see the buttons.

btnNewButton_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if((!(playerFirst.getText().equalsIgnoreCase("") ||playerSecond.getText().equalsIgnoreCase(""))&&(!playerFirst.getText().equalsIgnoreCase(playerSecond.getText())) ) ){
//unoGameController.playGame(playerFirst.getText(), playerSecond.getText());
CardLayout cardLayout=(CardLayout)(frmUno.getContentPane().getLayout());

[Code]...

prepareHandsForGuiCode is

public UNODeckMain prepareHandsForGui(UNODeckMain unoDeckMain){
JButton[] btnArr =new JButton[50];
for(int i=0;i<50;i++){
btnArr[i]=new JButton("hi");
panel_player1.add(btnArr[i]);
}return unoDeckMain; }

Am i skipping something ?

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Dec 17, 2014

this is my code

private void showresultsActionPerformed(java.awt.event.ActionEv ent evt) {
Object dbs=db.getSelectedItem();
Object colls=coll.getSelectedItem();
String distances=distance.getText();
String skillss=skills.getText();
DefaultTableModel tb=new DefaultTableModel();
MongoClient m = null;

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i have added the columns but how could i show up the change??

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I am using a HashMap to store names (keys) and IDs (values). I have set it up so that the radio buttons are added to the JPanel dynamically. That is, each time a name/id is added, a new radio button is automatically generated and added to the panel. Here is a snippet of the code I have thus far:

private void employeeButtons() {
buttonPanel = new JPanel();
buttonPanel.setLayout(new GridLayout(5,2,5,5));
empMap.put("Kyle", "1090");
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[code]...

The above code adds all of the radio buttons to the panel just fine. However, I need the buttons to be mutually exclusive. I would like to be able to not only add the buttons dynamically, but I need the buttons to be added to a ButtonGroup dynamically as well. That is, when I add a new hashmap entry the a new radio button is generated and added to the radiobutton group.

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Oct 4, 2014

I am building a GUI application which consists of two panels "panel" and "panel1". "panel1" have a button "addTimer" when clicked it should add the "panel" to the frame if i gain click the button it should again add the "panel" without overlapping the previous "panel" rather it should be created below the previous "panel". If i click on the button "addTimer" n times it should add the panel n times. Along with this the frame size has to dynamically change depending on the number of panels produced. Below is the code i tried my level best to satisfy the above conditions.

package superTimerV2;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class SuperTimer extends JFrame {
private static final long serialVersionUID = 1L;

[Code] ....

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public class Test2 extends JFrame {
/**
*
*/
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[Code] ....

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Feb 22, 2015

I have buttons created on a frame and then I register the listener from a controller in a controller-view relationship.

When I click the button on the face, the action never executes for some reason. I thought maybe there was a problem registering the listener but I can call the buttons doclick() method and it executes as it should. Perhaps I'm overlooking something really obvious here but I can't see it.

btnEight = new JButton( "8" );
// btnEight.addActionListener( controller );
btnEight.setBounds( 212, 90, 41, 23 );
frame.getContentPane().add( btnEight );

and then I add the listener

public void setController( ActionListener theController ) {
Component[] components = frame.getContentPane().getComponents();
for ( Component component : components ) {
if ( component instanceof JButton ) {
JButton button = ( JButton ) component;
button.addActionListener( theController );
}
}

again, when i click the button nothing happens. but if i add the following code

btnEight.doclick()

the actionPerformed invokes in theController as I intended.

You can see the entire project on GitHub so you can see the full context. The controller class contains the listener and the view class contains the buttons.

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Oct 21, 2014

I've recently decided to learn Java on my own using internet material such as forums, blogs and you tube. Ive never programed before but through some research I concluded that Java is going to be on the mid spectrum of difficulty as far as verbiage goes. I ma in no way implying that Java is easy but instead closer to spoken English that c++ if my research is correct. So here is my attempt at a basic program where I click a button and it will make an image appear. Not sure where Im falling short

package clicktoimage;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class Clicktoimage extends JFrame {
private JLabel label;
private ImageIcon image;

[Code]...

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So this is my package structure:

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I tried:File f = new File("resources/myexe.exe");
String path = f.getAbsolutePath();
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Another way would be to extract the exe to a local path on the server, but there is a possibility that I could face permission issues.

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Jun 19, 2014

I am trying to switch panel on click of a button but nothing is happening.

package game.uno.swings;
import java.awt.EventQueue;
import javax.swing.JFrame;
import java.awt.CardLayout;
import javax.swing.JPanel;

[Code] ....

I read the oracle doc example, i understand the concept but still nothing is happening on show,first ,next method of CardLayout in ActionPerformed. Code is highlighted where I am facing problem.

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Jun 22, 2014

I want to switch panel on click of a button and code for switching panels is written in update method (Which gets called from notify observer of another class as part of Observer pattern.

unoGameController.playGame(playerFirst.getText(), playerSecond.getText());

playGame in Panel 1 of class 1 calls another class (class 2)and data comes in update method of class 1(Observer interface).

Now for switching panels code is in gameControllerDataProcessing . I am not able to switch the panels when this functionality runs.

However if i dont call the unoGameController.playGame(playerFirst.getText(), playerSecond.getText() and directly call the update method or directly write the switching panel code . then it works fine.

btnNewButton_1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if((!(playerFirst.getText().equalsIgnoreCase("") ||playerSecond.getText().equalsIgnoreCase(""))&&(!playerFirst.getText().equalsIgnoreCase(playerSecond.getText())) ) ){
unoGameController.playGame(playerFirst.getText(), playerSecond.getText());

[Code] .....

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I am trying to add buttons in a loop to my but when i compile my program i can`t see my buttons. I can see other stuff that added to jpanel ...

static JButton blocks[][];
for (int i = 0; i < block.length; i++) {
for (int j = 0; j < block[i].length; j++) {
block[i][j] = new Block(i, j);
blocks[i][j] = new JButton(i+"");
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pageAxisPanel.add(blocks[i][j]);
}
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import java.awt.BorderLayout;
import java.awt.EventQueue;
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[code]....

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public class Graphics_Chart(){
public init(){
JScrollPane topPane = new JScrollPane(new ImagePanel2());
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[code]...

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Jun 9, 2014

I am making a game in java and i want to make a title screen. What I am trying to do is make a jpanel and load another jpanel when a button is pressed in one of the japenls. Here is the code for the runner

import java.awt.BorderLayout;
import javax.swing.JFrame;
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[Code] ....

here is the code for the jpanel that loads the other jpanel

import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.Rectangle;

[Code] ...

How do load a jpanel when a button is pressed in another jpanel

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import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
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public class Test2 extends JFrame {
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