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Get the text in a JTextField

I have a swing application where the user inputs a number into two of the three fields, and my application does Pythagoras Theorem on those two numbers, and sets the answer field with the answer. However, the three fields (hypotenuse, short side 1, short side 2) are all returning 0 (shorter side 1 and shorter side 2 are different fields, forgot to add the : there), and 0 is the default value. This is not the case for other windows, this is only the case for the Maths tab. My question is, what is the problem?
Here is a screenshot of the error:
And here is the code:
Entry.java
package Entry;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.List;
import javax.imageio.ImageIO;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JMenuBar;
import Settings.SettingsLoader;
import Window.ErrorWindow;
import Window.SmallLinkWindow;
import Window.Window;
import Window.WindowEntry;
public class Entry {
public static JFrame frame;
public static File file;
public static JInternalFrame currentframe;
public static void main(String[] args){
file = new File("settings.txt");
frame = new JFrame("GUI_Base");
JMenuBar menu = new JMenuBar();
JMenuBar bottom = new JMenuBar();
SmallLinkWindow[] smallwindows = WindowEntry.getSmallWindows();
for(int i = 0; i < smallwindows.length; i++){
SmallLinkWindow window = smallwindows[i];
JButton button = window.getButton(); //ActionListener already added at this point.
button.addActionListener(getActionListener(window));
bottom.add(button);
}
List<String> data = readAllData();
SettingsLoader loader = new SettingsLoader(data);
loader.obtainSettings();
Window[] windows = WindowEntry.getAllWindows();
for(int i = 0; i < windows.length; i++){
Window window = windows[i];
JButton item = new JButton(window.getName());
item.addActionListener(getActionListener(window));
menu.add(item);
}
currentframe = windows[0].getInsideFrame();
menu.add(getRefresh(), BorderLayout.EAST);
frame.setSize(2000, 1000);
frame.add(menu, BorderLayout.NORTH);
frame.add(bottom, BorderLayout.SOUTH);
frame.getRootPane().setBorder(BorderFactory.createLineBorder(Color.BLACK, 5));
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
System.out.println("Loaded!");
}
private static JButton getRefresh() {
try {
BufferedImage image = ImageIO.read(new File("refresh.png"));
int type = image.getType() == 0? BufferedImage.TYPE_INT_ARGB : image.getType();
image = resizeImage(image, type, 25, 25);
ImageIcon icon = new ImageIcon(image);
JButton label = new JButton(icon);
label.addActionListener(getActionListener());
return label;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
private static ActionListener getActionListener() {
return new ActionListener(){
#Override
public void actionPerformed(ActionEvent arg0) {
frame.repaint();
}
};
}
//Copied from http://www.mkyong.com/java/how-to-resize-an-image-in-java/
public static BufferedImage resizeImage(BufferedImage originalImage, int type, int width, int height){
BufferedImage resizedImage = new BufferedImage(width, height, type);
Graphics2D g = resizedImage.createGraphics();
g.drawImage(originalImage, 0, 0, width, height, null);
g.dispose();
return resizedImage;
}
private static ActionListener getActionListener(SmallLinkWindow window) {
ActionListener listener = new ActionListener(){
#Override
public void actionPerformed(ActionEvent arg0) {
Entry.frame.remove(currentframe);
JInternalFrame frame = window.getInsideFrame();
frame.setSize(1400, 925);
Entry.frame.add(frame);
currentframe = frame;
frame.setVisible(true);
}
};
return listener;
}
private static ActionListener getActionListener(Window window) {
ActionListener listener = new ActionListener(){
#Override
public void actionPerformed(ActionEvent arg0) {
Entry.frame.remove(currentframe);
JInternalFrame frame = window.getInsideFrame();
frame.setSize(1400, 925);
Entry.frame.add(frame);
currentframe = frame;
frame.setVisible(true);
}
};
return listener;
}
private static List<String> readAllData() {
try {
return Files.readAllLines(file.toPath());
} catch (IOException e) {
ErrorWindow.forException(e);
}
ErrorWindow.forException(new RuntimeException("Unable to read file!"));
System.exit(1);
return null;
}
}
MathWindow.java
package Window;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JSplitPane;
import javax.swing.JTextField;
import Math.Pythagoras;
import Math.Trig;
import Math.TrigValue;
import Math.TrigonometryException;
import Settings.GUISetting;
public class MathWindow implements Window {
private Color colour;
private JSplitPane splitPane;
#Override
public String getName() {
return "Maths";
}
#Override
public JInternalFrame getInsideFrame() {
JInternalFrame frame = new JInternalFrame();
JSplitPane pane = new JSplitPane();
pane.setDividerLocation(300);
JPanel panel = new JPanel();
panel.setSize(300, 925);
JButton pyth = new JButton();
JButton trig = new JButton();
pyth.setText("Pythagoars theorem");
trig.setText("Trigonometry");
pyth.setSize(300, 200);
trig.setSize(300, 200);
pyth.addActionListener(getActionListenerForPythagoras());
trig.addActionListener(getActionListenerForTrignomotry());
panel.setLayout(new GridLayout(0,1));
panel.add(pyth);
panel.add(trig);
pane.setLeftComponent(panel);
splitPane = pane;
frame.getContentPane().add(pane);
return frame;
}
private ActionListener getActionListenerForPythagoras() {
return new ActionListener(){
#Override
public void actionPerformed(ActionEvent event) {
JPanel overseePanel = new JPanel();
JTextField hypField = new JTextField();
JTextField aField = new JTextField();
JTextField bField = new JTextField();
JLabel hypLabel = new JLabel();
JLabel aLabel = new JLabel();
JLabel bLabel = new JLabel();
JButton button = new JButton();
JTextField field = new JTextField();
hypLabel.setText("Hypotenuse");
aLabel.setText("Small side 1");
bLabel.setText("Small side 2");
hypLabel.setSize(400, hypLabel.getHeight());
aLabel.setSize(400, aLabel.getHeight());
bLabel.setSize(400, bLabel.getHeight());
hypField.setText("0");
aField.setText("0");
bField.setText("0");
hypField.setSize(400, hypLabel.getHeight());
aField.setSize(400, aLabel.getHeight());
bField.setSize(400, bLabel.getHeight());
button.setText("Work it out!");
button.addActionListener(getActionListenerForPythagorasFinal(hypField.getText(), aField.getText(), bField.getText(), field));
overseePanel.setLayout(new GridLayout(0,1));
overseePanel.add(hypLabel, BorderLayout.CENTER);
overseePanel.add(hypField, BorderLayout.CENTER);
overseePanel.add(aLabel, BorderLayout.CENTER);
overseePanel.add(aField, BorderLayout.CENTER);
overseePanel.add(bLabel, BorderLayout.CENTER);
overseePanel.add(bField, BorderLayout.CENTER);
overseePanel.add(button);
overseePanel.add(field);
splitPane.setRightComponent(overseePanel);
}
};
}
protected ActionListener getActionListenerForPythagorasFinal(String hyp, String s1, String s2, JTextField field) {
return new ActionListener(){
private Pythagoras p = new Pythagoras();
#Override
public void actionPerformed(ActionEvent arg0) {
System.out.println("Hypotenuse: " + hyp);
System.out.println("Shorter side 1" + s1);
System.out.println("Shorter side 2" + s2);
if(hyp.equals("0")){
double a = Double.parseDouble(s1);
double b = Double.parseDouble(s2);
if(a == 3 && b == 4 || a == 4 && b == 3) System.out.println("The result should be 5!");
field.setText(String.valueOf(p.getHypotenuse(a, b)));
}else if(s1.equals("0")){
double c = Double.parseDouble(hyp);
double b = Double.parseDouble(s2);
field.setText(String.valueOf(p.getShorterSide(b, c)));
}else if(s2.equals("0")){
double c = Double.parseDouble(hyp);
double a = Double.parseDouble(s1);
field.setText(String.valueOf(p.getShorterSide(a, c)));
}else throw new IllegalArgumentException("All of the fields have stuff in them!");
}
};
}
private ActionListener getActionListenerForTrignomotry(){
return new ActionListener(){
#Override
public void actionPerformed(ActionEvent arg0) {
JPanel overseePanel = new JPanel();
JTextField hypField = new JTextField();
JTextField aField = new JTextField();
JTextField bField = new JTextField();
JTextField anField = new JTextField();
JLabel hypLabel = new JLabel();
JLabel aLabel = new JLabel();
JLabel bLabel = new JLabel();
JLabel anLabel = new JLabel();
JButton button = new JButton();
JTextField field = new JTextField();
hypLabel.setText("Hypotenuse");
aLabel.setText("Opposite");
bLabel.setText("Adjacent");
anLabel.setText("Angle size");
hypLabel.setSize(400, hypLabel.getHeight());
aLabel.setSize(400, aLabel.getHeight());
bLabel.setSize(400, bLabel.getHeight());
anLabel.setSize(400, anLabel.getHeight());
hypField.setText("0");
aField.setText("0");
bField.setText("0");
anField.setText("0");
hypField.setSize(400, hypLabel.getHeight());
aField.setSize(400, aLabel.getHeight());
bField.setSize(400, bLabel.getHeight());
anField.setSize(400, anLabel.getHeight());
button.setText("Work it out!");
button.addActionListener(getActionListenerForTrigonomotryFinal(hypField.getText(), aField.getText(), bField.getText(), anField.getText(), field));
overseePanel.setLayout(new GridLayout(0,1));
overseePanel.add(hypLabel, BorderLayout.CENTER);
overseePanel.add(hypField, BorderLayout.CENTER);
overseePanel.add(aLabel, BorderLayout.CENTER);
overseePanel.add(aField, BorderLayout.CENTER);
overseePanel.add(bLabel, BorderLayout.CENTER);
overseePanel.add(bField, BorderLayout.CENTER);
overseePanel.add(anLabel, BorderLayout.CENTER);
overseePanel.add(anField, BorderLayout.CENTER);
overseePanel.add(button);
overseePanel.add(field);
splitPane.setRightComponent(overseePanel);
}
};
}
//a == opposite, b == adjacent
protected ActionListener getActionListenerForTrigonomotryFinal(String hyp,
String a, String b, String an, JTextField field) {
return new ActionListener(){
#Override
public void actionPerformed(ActionEvent e) {
Trig trigonometry = new Trig();
double value = 0.000;
if(an == "0"){
if(hyp == "0"){
int shorta = Integer.parseInt(a);
int shortb = Integer.parseInt(b);
try {
TrigValue tA = new TrigValue(TrigValue.OPPOSITE, shorta);
TrigValue tB = new TrigValue(TrigValue.ADJACENT, shortb);
value = trigonometry.getAngleSize(tA, tB);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else if(a == "0"){
int hypotenuse = Integer.parseInt(hyp);
int shortb = Integer.parseInt(b);
try {
TrigValue tH = new TrigValue(TrigValue.HYPOTENUSE, hypotenuse);
TrigValue tB = new TrigValue(TrigValue.ADJACENT, shortb);
value = trigonometry.getAngleSize(tH, tB);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else if(b == "0"){
int hypotenuse = Integer.parseInt(hyp);
int shorta = Integer.parseInt(a);
try {
TrigValue tA = new TrigValue(TrigValue.OPPOSITE, shorta);
TrigValue tH = new TrigValue(TrigValue.HYPOTENUSE, hypotenuse);
value = trigonometry.getAngleSize(tA, tH);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}
}else{
int angle = Integer.parseInt(an);
if(angle >= 90) throw new IllegalArgumentException("Angle is bigger than 90");
if(hyp.equals("0")){
if(a.equals("?")){
int shortb = Integer.parseInt(b);
try {
TrigValue tB = new TrigValue(TrigValue.ADJACENT, shortb);
TrigValue tA = new TrigValue(TrigValue.OPPOSITE);
value = trigonometry.getSideLength(tB, angle, tA);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else if(b.equals("?")){
int shorta = Integer.parseInt(a);
try {
TrigValue tB = new TrigValue(TrigValue.ADJACENT);
TrigValue tA = new TrigValue(TrigValue.OPPOSITE, shorta);
value = trigonometry.getSideLength(tA, angle, tB);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else throw new IllegalArgumentException("We already know what we want to know.");
}else if(a.equals("0")){
if(hyp.equals("?")){
int shortb = Integer.parseInt(b);
try {
TrigValue tB = new TrigValue(TrigValue.ADJACENT, shortb);
TrigValue tH = new TrigValue(TrigValue.HYPOTENUSE);
value = trigonometry.getSideLength(tB, angle, tH);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else if(b.equals("?")){
int h = Integer.parseInt(hyp);
try {
TrigValue tB = new TrigValue(TrigValue.ADJACENT);
TrigValue tH = new TrigValue(TrigValue.HYPOTENUSE, h);
value = trigonometry.getSideLength(tH, angle, tB);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else throw new IllegalArgumentException("We already know what we want to know.");
}else if(b.equals("0")){
if(hyp.equals("?")){
int shorta = Integer.parseInt(a);
try {
TrigValue tA = new TrigValue(TrigValue.OPPOSITE, shorta);
TrigValue tH = new TrigValue(TrigValue.HYPOTENUSE);
value = trigonometry.getSideLength(tA, angle, tH);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}else if(a.equals("?")){
int h = Integer.parseInt(hyp);
try {
TrigValue tA = new TrigValue(TrigValue.OPPOSITE);
TrigValue tH = new TrigValue(TrigValue.HYPOTENUSE, h);
value = trigonometry.getSideLength(tH, angle, tA);
} catch (TrigonometryException e1) {
e1.printStackTrace();
}
}
}
}
field.setText(String.valueOf(value));
}
};
}
#Override
public GUISetting[] getSettings() {
GUISetting setting = new GUISetting("Show working", "Maths");
GUISetting setting2 = new GUISetting("Round", "Maths");
return new GUISetting[]{setting, setting2};
}
#Override
public void setColour(Color c) {
colour = c;
}
#Override
public Color getCurrentColour() {
return colour;
}
}
If I need to add anything else please add a comment.

You create a new instance of JTextField, you then pass it's text property to the getActionListenerForPythagorasFinal method, so it no longer has what "will" be entered into the fields, only what it's initial value is (""), thus it's completely unable to perform the calculation on the fields in question
You could try passing the fields themselves to the method instead, but as a general piece of advice, I would create a custom class which contains the fields and associated actions which you can create whenever you need it, making significantly easier to manage and maintain

How to find JLabel that was clicked and show ImageIcon from it?

Here is my code. I want to know which l was clicked and then in a new frame, display that ImageIcon.
The e.getSource() is not working...
final JFrame shirts = new JFrame("T-shirts");
JPanel panel = new JPanel(new GridLayout(4, 4, 3, 3));
for (int i = 1; i < 13; i++) {
l = new JLabel(new ImageIcon("T-shirts/"+i+".jpg"), JLabel.CENTER);
l.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
l.setFont(l.getFont().deriveFont(20f));
panel.add(l);
}//end of for loop
panel.addMouseListener(new MouseAdapter(){
public void mouseClicked(MouseEvent e)
{
sizes = new JFrame("Shopping");
sizes.setVisible(true);
sizes.setSize(500, 500);
sizes.setLocation(100,200);
shirts.dispose();
if(e.getSource()==l){//FIX
sizes.add(l);
}//end of if
}
});
shirts.setContentPane(panel);
shirts.setSize(1000, 1000);
shirts.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
shirts.setVisible(true);

If you add your MouseListener directly to your JLabels, then you can display the pressed label's icon easily in a JOptionPane:
#Override
public void mousePressed(MouseEvent mEvt) {
JLabel label = (JLabel) mEvt.getSource();
Icon icon = label.getIcon();
JOptionPane.showMessageDialog(label, icon);
}
For example:
import java.awt.GridLayout;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
import javax.swing.*;
public class FooMouseListener extends JPanel {
private GetImages getImages;
public FooMouseListener() throws IOException {
getImages = new GetImages();
setLayout(new GridLayout(GetImages.SPRITE_ROWS, GetImages.SPRITE_COLS));
MyMouseAdapter myMouseAdapter = new MyMouseAdapter();
for (int i = 0; i < GetImages.SPRITE_CELLS; i++) {
JLabel label = new JLabel(getImages.getIcon(i));
add(label);
label.addMouseListener(myMouseAdapter);
}
}
private class MyMouseAdapter extends MouseAdapter {
#Override
public void mousePressed(MouseEvent e) {
JLabel label = (JLabel) e.getSource();
Icon icon = label.getIcon();
JOptionPane.showMessageDialog(label, icon, "Selected Icon", JOptionPane.PLAIN_MESSAGE);
}
}
private static void createAndShowGui() {
FooMouseListener mainPanel = null;
try {
mainPanel = new FooMouseListener();
} catch (IOException e) {
e.printStackTrace();
System.exit(-1);
}
JFrame frame = new JFrame("FooMouseListener");
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGui();
}
});
}
}
class GetImages {
private static final String SPRITE_PATH = "http://th02.deviantart.net/"
+ "fs70/PRE/i/2011/169/0/8/blue_player_sprite_sheet_by_resetado-d3j7zba.png";
public static final int SPRITE_ROWS = 6;
public static final int SPRITE_COLS = 6;
public static final int SPRITE_CELLS = SPRITE_COLS * SPRITE_ROWS;
private List<Icon> iconList = new ArrayList<>();
public GetImages() throws IOException {
URL imgUrl = new URL(SPRITE_PATH);
BufferedImage mainImage = ImageIO.read(imgUrl);
for (int i = 0; i < SPRITE_CELLS; i++) {
int row = i / SPRITE_COLS;
int col = i % SPRITE_COLS;
int x = (int) (((double) mainImage.getWidth() * col) / SPRITE_COLS);
int y = (int) ((double) (mainImage.getHeight() * row) / SPRITE_ROWS);
int w = (int) ((double) mainImage.getWidth() / SPRITE_COLS);
int h = (int) ((double) mainImage.getHeight() / SPRITE_ROWS);
BufferedImage img = mainImage.getSubimage(x, y, w, h);
ImageIcon icon = new ImageIcon(img);
iconList.add(icon);
}
}
// get the Icon from the List at index position
public Icon getIcon(int index) {
if (index < 0 || index >= iconList.size()) {
throw new ArrayIndexOutOfBoundsException(index);
}
return iconList.get(index);
}
public int getIconListSize() {
return iconList.size();
}
}

Have you tried this?
public void mouseClicked(MouseEvent e)
{
sizes = new JFrame("Shopping");
sizes.add(l);
sizes.setVisible(true);
sizes.setSize(500, 500);
sizes.setLocation(100,200);
shirts.dispose();
//Remove the "e.getSource()" part.
}
It will automatically display the image, because you are assigning the Image Name to it, in the same segment as the Addition to the new JFrame.
Let me know of the outcome

How to add JPanel in a JFrame that is a BufferedImage()

So far I have this:
The logic is that:
a.)I will press the keybutton 'S' then the game will start
b.)The JTextArea will show the conversation of the users(note: I didn't disable it for debugging purposes)
c.)The JTextField will be the field the user will type text.
I have these working code:
package game;
//import
public class Game extends JFrame {
public static final String SERVER_IP = "localhost";
public static final int WIDTH = 1200;
public static final int HEIGHT = 800;
public static final int SCALE = 1;
private final int FPS = 60;
private final long targetTime = 1000 / FPS;
private BufferedImage backBuffer;
public KeyboardInput input;
private Stage stage;
public String username = "";
public GameClient client;
public static Game game;
public static String message = "";
private Tank tank;
private javax.swing.JButton jButton1;
private javax.swing.JPanel jPanel1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
private javax.swing.JTextField jTextField1;
public Game() throws HeadlessException {
setSize(1000, 1000);
addWindowListener(new WinListener());
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setResizable(false);
setVisible(true);
//setUndecorated(false);
addKeyListener(input);
setVisible(true);
}
public void init() {
this.game = this;
input = new KeyboardInput();
//this.setSize(WIDTH, HEIGHT);
//this.setLocationRelativeTo(null);
//this.setResizable(false);
Dimension expectedDimension = new Dimension(900, 50);
Dimension expectedDimension2 = new Dimension(100, 50);
jButton1 = new JButton("jButton1");
jTextArea1 = new JTextArea(6,6);
jTextArea1.setBounds(0,200,200,200);
jTextArea1.setBackground(Color.BLUE);
//jTextArea1.setFocusable(false);
jTextField1 = new JTextField("jTextField1");
JPanel panel2 = new JPanel();
panel2.setLayout(new FlowLayout());
panel2.add(jTextField1);
panel2.add(jButton1);
panel2.setBackground(Color.BLACK); // for debug only
panel2.setPreferredSize(expectedDimension);
panel2.setMaximumSize(expectedDimension);
panel2.setMinimumSize(expectedDimension);
jPanel1 = new JPanel();
jPanel1.setLayout(new BoxLayout(jPanel1, BoxLayout.Y_AXIS));
jPanel1.add(jTextArea1);
jPanel1.add(panel2);
jPanel1.setBackground(Color.RED); // for debug only
jPanel1.setPreferredSize(expectedDimension2);
jPanel1.setMaximumSize(expectedDimension2);
jPanel1.setMinimumSize(expectedDimension2);
jScrollPane1 = new JScrollPane(jPanel1,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
setContentPane(jScrollPane1);
System.out.println("init");
revalidate();
client = new GameClient(SERVER_IP, this);
backBuffer = new BufferedImage(800* SCALE,600 * SCALE, BufferedImage.TYPE_INT_RGB);
}
public Stage getStage() {
return stage;
}
public class WinListener extends WindowAdapter {
#Override
public void windowClosing(WindowEvent e) {
disconnect();
System.exit(0);
}
}
public void disconnect() {
Packet01Disconnect p = new Packet01Disconnect(username);
p.writeData(client);
client.closeSocket();
System.exit(0);
}
private Font font = new Font("Munro Small", Font.PLAIN, 96);
private Font font2 = new Font("Munro Small", Font.PLAIN, 50);
private Font fontError = new Font("Munro Small", Font.PLAIN, 25);
private int op = 0;
public void updateMenu() {
if (input.up.isPressed()) {
if (op == 1) {
op = 0;
} else {
op++;
}
input.up.toggle(false);
} else if (input.down.isPressed()) {
if (op == 0) {
op = 1;
} else {
op--;
}
input.down.toggle(false);
} else if (input.enter.isPressed() && op == 0) {
runningMenu = false;
input.enter.toggle(false);
} else if (input.enter.isPressed() && op == 1) {
System.exit(0);
}
}
public void drawMenu() {
Graphics g = getGraphics();
Graphics bbg = backBuffer.getGraphics();
bbg.setFont(font);
bbg.setColor(Color.white);
bbg.drawString("Sample", 189, 180);
bbg.setFont(font2);
if (op == 0) {
bbg.setColor(Color.red);
bbg.drawString("Start", 327, 378);
bbg.setColor(Color.white);
bbg.drawString("Quit", 342, 425);
} else if (op == 1) {
bbg.setColor(Color.white);
bbg.drawString("Start", 327, 378);
bbg.setColor(Color.red);
bbg.drawString("Quit", 342, 425);
}
g.drawImage(backBuffer, 0, 0, this);
}
public void draw() {
Graphics g = getGraphics();
Graphics bbg = backBuffer.getGraphics();
bbg.setColor(Color.black);
bbg.fillRect(0, 0, WIDTH, HEIGHT);
stage.drawStage(bbg, this);
for (Tank t : stage.getPlayers()) {
t.draw(bbg, SCALE, this);
}
g.drawImage(backBuffer, 0, 0, this);
}
public void update() {
tank.update(stage);
stage.update();
}
private long time = 0;
public void updateLogin() {
if (username.length() < 8) {
if (input.letter.isPressed()) {
username += (char) input.letter.getKeyCode();
input.letter.toggle(false);
}
}
if (input.erase.isPressed() && username.length() > 0) {
username = username.substring(0, username.length() - 1);
input.erase.toggle(false);
}
if (input.enter.isPressed() && username.length() > 0) {
input.enter.toggle(false);
time = System.currentTimeMillis();
Packet00Login packet = new Packet00Login(username, 0, 0, 0);
packet.writeData(client);
}
if (message.equalsIgnoreCase("connect server success")) {
time = 0;
runningLogin = false;
return;
}
if (message.equalsIgnoreCase("Username already exists")) {
drawLogin();
try {
Thread.sleep(1000);
} catch (InterruptedException ex) {
}
message = "";
username = "";
time = 0;
}
if (message.equalsIgnoreCase("Server full")) {
drawLogin();
try {
Thread.sleep(2000);
} catch (Exception e) {
}
System.exit(0);
}
if (time != 0 && message.equals("") && (System.currentTimeMillis() - time) >= 5000) {
message = "cannot connect to the server";
drawLogin();
try {
Thread.sleep(2000);
} catch (InterruptedException ex) {
}
message = "";
time = 0;
}
}
public void drawLogin() {
Graphics g = getGraphics();
Graphics bbg = backBuffer.getGraphics();
bbg.setColor(Color.black);
bbg.fillRect(0, 0, 800, 600);
bbg.setColor(Color.red);
bbg.setFont(fontError);
bbg.drawString(message, 100, 100);
bbg.setFont(font2);
bbg.setColor(Color.white);
bbg.drawString("Username", 284, 254);
bbg.setColor(Color.red);
bbg.drawString(username, 284, 304);
g.drawImage(backBuffer, 0, 0, this);
}
public static String waitPlayers = "Waiting for others players";
public String auxWaitPlayers = waitPlayers;
public static int quantPlayers = 0;
public class StringWait extends Thread {
public void run() {
while (true) {
try {
waitPlayers = "waiting for others players";
Thread.sleep(1000);
waitPlayers = "waiting for others players.";
Thread.sleep(1000);
waitPlayers = "waiting for others players..";
Thread.sleep(1000);
waitPlayers = "waiting for others players...";
Thread.sleep(1000);
} catch (InterruptedException ex) {
}
}
}
}
public void updateWaitPlayers() {
if (quantPlayers == 1) {
runningWaitPlayer = false;
}
}
public void drawWaitPlayers() {
Graphics g = getGraphics();
Graphics bbg = backBuffer.getGraphics();
bbg.setColor(Color.black);
bbg.fillRect(0, 0, 800, 600);
bbg.setColor(Color.white);
bbg.setFont(fontError);
bbg.drawString(waitPlayers, 100, 100);
g.drawImage(backBuffer, 0, 0, this);
}
public boolean runningMenu = true, runningLogin = true, runningWaitPlayer = true, runningGame = true;
public int op2 = 0;
public void start() {
long start;
long elapsed;
long wait;
init();
while (true) {
runningGame = true;
runningMenu = true;
runningWaitPlayer = true;
runningLogin = true;
switch (op2) {
//..
}
}
public void setGameState(boolean state) {
//...
}
public static void main(String[] args) throws InterruptedException {
Game g = new Game();
Thread.sleep(1000);
g.start();
}
}
And these is my objective interface:
I hope someone will help me with my problem.

Set the "main" containers layout manager to BorderLayout
On to this, add the GameInterface in the BorderLayout.CENTER position
Create another ("interaction") container and set it's layout manager to BorderLayout, add this to the "main" container's BorderLayout.SOUTH position
Wrap the JTextArea in a JScrollPane and add it to the BorderLayout.CENTER position of your "interaction" container
Create another container ("message"), this could use a GridBagLayout. On to this add the JTextField (with GridBagConstraints#weightx set to 0 and GridBagConstraints#weightx set to 1) and add the button to the next cell (GridBagConstraints#gridx set to 1 and GridBagConstraints#weightx set to 0)
For more details, see:
Laying Out Components Within a Container
How to Use Borders
How to Use GridBagLayout
Note:
Graphics g = getGraphics(); is NOT how custom painting should be done. Instead, override the paintComponent of a component like JPanel and perform your custom painting there!
For more details see
Painting in AWT and Swing
Performing Custom Painting
Example
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JPanel master = new JPanel(new BorderLayout());
master.setBackground(Color.BLUE);
JPanel gameInterface = new JPanel() {
#Override
public Dimension getPreferredSize() {
return new Dimension(400, 400);
}
};
gameInterface.setBackground(Color.MAGENTA);
master.add(gameInterface);
JPanel interactions = new JPanel(new BorderLayout());
interactions.add(new JScrollPane(new JTextArea(5, 20)));
JTextField field = new JTextField(15);
JButton btn = new JButton("Button");
JPanel message = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.weightx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
message.add(field, gbc);
gbc.gridx = 1;
gbc.weightx = 0;
message.add(btn, gbc);
interactions.add(message, BorderLayout.SOUTH);
master.add(interactions, BorderLayout.SOUTH);
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(master);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
}

Clicking on the search button in JFrame is not opening the JDialog

I have a jframe with page navigation buttons,print,search buttons.When i clicked on the print button it is perfectly opening the window and i am able to print the page also.But when i clicked on search button i am not able to get the window.My requirement is clicking on the Search button should open a window(same as print window) with text field and when i enter the search data then it should display the matches and unmatches.
I have tried the below code but i am not succeed.
import com.google.common.base.CharMatcher;
import com.sun.pdfview.PDFFile;
import com.sun.pdfview.PDFPage;
import com.sun.pdfview.PDFRenderer;
import com.sun.pdfview.PagePanel;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.standard.PageRanges;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.geom.AffineTransform;
import java.awt.geom.Rectangle2D;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import static com.google.common.base.Strings.isNullOrEmpty;
public class PdfViewer extends JPanel {
private static enum Navigation {
GO_FIRST_PAGE, FORWARD, BACKWARD, GO_LAST_PAGE, GO_N_PAGE
}
private static final CharMatcher POSITIVE_DIGITAL = CharMatcher.anyOf("0123456789");
private static final String GO_PAGE_TEMPLATE = "%s of %s";
private static final int FIRST_PAGE = 1;
private int currentPage = FIRST_PAGE;
private JButton btnFirstPage;
private JButton btnPreviousPage;
private JTextField txtGoPage;
private JButton btnNextPage;
private JButton btnLastPage;
private JButton print;
private JButton search;
private PagePanel pagePanel;
private PDFFile pdfFile;
public PdfViewer() {
initial();
}
private void initial() {
setLayout(new BorderLayout(0, 0));
JPanel topPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
add(topPanel, BorderLayout.NORTH);
btnFirstPage = createButton("|<<");
topPanel.add(btnFirstPage);
btnPreviousPage = createButton("<<");
topPanel.add(btnPreviousPage);
txtGoPage = new JTextField(10);
txtGoPage.setHorizontalAlignment(JTextField.CENTER);
topPanel.add(txtGoPage);
btnNextPage = createButton(">>");
topPanel.add(btnNextPage);
btnLastPage = createButton(">>|");
topPanel.add(btnLastPage);
print = new JButton("print");
topPanel.add(print);
search = new JButton("search");
topPanel.add(search);
JScrollPane scrollPane = new JScrollPane();
add(scrollPane, BorderLayout.CENTER);
JPanel viewPanel = new JPanel(new BorderLayout(0, 0));
scrollPane.setViewportView(viewPanel);
pagePanel = new PagePanel();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
pagePanel.setPreferredSize(screenSize);
viewPanel.add(pagePanel, BorderLayout.CENTER);
disableAllNavigationButton();
btnFirstPage.addActionListener(new PageNavigationListener(Navigation.GO_FIRST_PAGE));
btnPreviousPage.addActionListener(new PageNavigationListener(Navigation.BACKWARD));
btnNextPage.addActionListener(new PageNavigationListener(Navigation.FORWARD));
btnLastPage.addActionListener(new PageNavigationListener(Navigation.GO_LAST_PAGE));
txtGoPage.addActionListener(new PageNavigationListener(Navigation.GO_N_PAGE));
print.addActionListener(new PrintUIWindow());
search.addActionListener(new Action1());
}
static class Action1 implements ActionListener {
public void actionPerformed (ActionEvent e) {
JFrame parent = new JFrame();
JDialog jDialog = new JDialog();
Label label = new Label("Enter Word: ");
final JTextField jTextField = new JTextField(100);
JPanel panel = new JPanel();
parent.add(panel);
panel.add(label);
panel.add(jTextField);
parent.setLocationRelativeTo(null);
}
}
private JButton createButton(String text) {
JButton button = new JButton(text);
button.setPreferredSize(new Dimension(55, 20));
return button;
}
private void disableAllNavigationButton() {
btnFirstPage.setEnabled(false);
btnPreviousPage.setEnabled(false);
btnNextPage.setEnabled(false);
btnLastPage.setEnabled(false);
}
private boolean isMoreThanOnePage(PDFFile pdfFile) {
return pdfFile.getNumPages() > 1;
}
private class PageNavigationListener implements ActionListener {
private final Navigation navigation;
private PageNavigationListener(Navigation navigation) {
this.navigation = navigation;
}
public void actionPerformed(ActionEvent e) {
if (pdfFile == null) {
return;
}
int numPages = pdfFile.getNumPages();
if (numPages <= 1) {
disableAllNavigationButton();
} else {
if (navigation == Navigation.FORWARD && hasNextPage(numPages)) {
goPage(currentPage, numPages);
}
if (navigation == Navigation.GO_LAST_PAGE) {
goPage(numPages, numPages);
}
if (navigation == Navigation.BACKWARD && hasPreviousPage()) {
goPage(currentPage, numPages);
}
if (navigation == Navigation.GO_FIRST_PAGE) {
goPage(FIRST_PAGE, numPages);
}
if (navigation == Navigation.GO_N_PAGE) {
String text = txtGoPage.getText();
boolean isValid = false;
if (!isNullOrEmpty(text)) {
boolean isNumber = POSITIVE_DIGITAL.matchesAllOf(text);
if (isNumber) {
int pageNumber = Integer.valueOf(text);
if (pageNumber >= 1 && pageNumber <= numPages) {
goPage(Integer.valueOf(text), numPages);
isValid = true;
}
}
}
if (!isValid) {
JOptionPane.showMessageDialog(PdfViewer.this,
format("Invalid page number '%s' in this document", text));
txtGoPage.setText(format(GO_PAGE_TEMPLATE, currentPage, numPages));
}
}
}
}
private void goPage(int pageNumber, int numPages) {
currentPage = pageNumber;
PDFPage page = pdfFile.getPage(currentPage);
pagePanel.showPage(page);
boolean notFirstPage = isNotFirstPage();
btnFirstPage.setEnabled(notFirstPage);
btnPreviousPage.setEnabled(notFirstPage);
txtGoPage.setText(format(GO_PAGE_TEMPLATE, currentPage, numPages));
boolean notLastPage = isNotLastPage(numPages);
btnNextPage.setEnabled(notLastPage);
btnLastPage.setEnabled(notLastPage);
}
private boolean hasNextPage(int numPages) {
return (++currentPage) <= numPages;
}
private boolean hasPreviousPage() {
return (--currentPage) >= FIRST_PAGE;
}
private boolean isNotLastPage(int numPages) {
return currentPage != numPages;
}
private boolean isNotFirstPage() {
return currentPage != FIRST_PAGE;
}
}
private class PrintUIWindow implements Printable, ActionListener {
/*
* (non-Javadoc)
*
* #see java.awt.print.Printable#print(java.awt.Graphics,
* java.awt.print.PageFormat, int)
*/
#Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
int pagenum = pageIndex+1;
if (pagenum < 1 || pagenum > pdfFile.getNumPages ())
return NO_SUCH_PAGE;
Graphics2D g2d = (Graphics2D) graphics;
AffineTransform at = g2d.getTransform ();
PDFPage pdfPage = pdfFile.getPage (pagenum);
Dimension dim;
dim = pdfPage.getUnstretchedSize ((int) pageFormat.getImageableWidth (),
(int) pageFormat.getImageableHeight (),
pdfPage.getBBox ());
Rectangle bounds = new Rectangle ((int) pageFormat.getImageableX (),
(int) pageFormat.getImageableY (),
dim.width,
dim.height);
PDFRenderer rend = new PDFRenderer (pdfPage, (Graphics2D) graphics, bounds,
null, null);
try
{
pdfPage.waitForFinish ();
rend.run ();
}
catch (InterruptedException ie)
{
//JOptionPane.showMessageDialog (this, ie.getMessage ());
}
g2d.setTransform (at);
g2d.draw (new Rectangle2D.Double (pageFormat.getImageableX (),
pageFormat.getImageableY (),
pageFormat.getImageableWidth (),
pageFormat.getImageableHeight ()));
return PAGE_EXISTS;
}
/*
* (non-Javadoc)
*
* #see
* java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent
* )
*/
#Override
public void actionPerformed(ActionEvent e) {
System.out.println("Inside action performed");
PrinterJob printJob = PrinterJob.getPrinterJob();
printJob.setPrintable(this);
try
{
HashPrintRequestAttributeSet attset;
attset = new HashPrintRequestAttributeSet ();
//attset.add (new PageRanges (1, pdfFile.getNumPages ()));
if (printJob.printDialog (attset))
printJob.print (attset);
}
catch (PrinterException pe)
{
//JOptionPane.showMessageDialog (this, pe.getMessage ());
}
}
}
public PagePanel getPagePanel() {
return pagePanel;
}
public void setPDFFile(PDFFile pdfFile) {
this.pdfFile = pdfFile;
currentPage = FIRST_PAGE;
disableAllNavigationButton();
txtGoPage.setText(format(GO_PAGE_TEMPLATE, FIRST_PAGE, pdfFile.getNumPages()));
boolean moreThanOnePage = isMoreThanOnePage(pdfFile);
btnNextPage.setEnabled(moreThanOnePage);
btnLastPage.setEnabled(moreThanOnePage);
}
public static String format(String template, Object... args) {
template = String.valueOf(template); // null -> "null"
// start substituting the arguments into the '%s' placeholders
StringBuilder builder = new StringBuilder(template.length() + 16 * args.length);
int templateStart = 0;
int i = 0;
while (i < args.length) {
int placeholderStart = template.indexOf("%s", templateStart);
if (placeholderStart == -1) {
break;
}
builder.append(template.substring(templateStart, placeholderStart));
builder.append(args[i++]);
templateStart = placeholderStart + 2;
}
builder.append(template.substring(templateStart));
// if we run out of placeholders, append the extra args in square braces
if (i < args.length) {
builder.append(" [");
builder.append(args[i++]);
while (i < args.length) {
builder.append(", ");
builder.append(args[i++]);
}
builder.append(']');
}
return builder.toString();
}
public static void main(String[] args) {
try {
long heapSize = Runtime.getRuntime().totalMemory();
System.out.println("Heap Size = " + heapSize);
JFrame frame = new JFrame("PDF Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// load a pdf from a byte buffer
File file = new File("/home/swarupa/Downloads/2626OS-Chapter-5-Advanced-Theme.pdf");
RandomAccessFile raf = new RandomAccessFile(file, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
final PDFFile pdffile = new PDFFile(buf);
PdfViewer pdfViewer = new PdfViewer();
pdfViewer.setPDFFile(pdffile);
frame.add(pdfViewer);
frame.pack();
frame.setVisible(true);
PDFPage page = pdffile.getPage(0);
pdfViewer.getPagePanel().showPage(page);
} catch (IOException e) {
e.printStackTrace();
}
}
}
Where i am doing wrong.Can any one point me.

I think, that this should solve your problem ;) You've forgotten to set the window to be visible :)
static class Action1 implements ActionListener {
public void actionPerformed (ActionEvent e) {
JFrame parent = new JFrame();
JDialog jDialog = new JDialog();
Label label = new Label("Enter Word: ");
final JTextField jTextField = new JTextField(100);
JPanel panel = new JPanel();
parent.add(panel);
panel.add(label);
panel.add(jTextField);
parent.setLocationRelativeTo(null);
parent.setVisible(true);
}
}
Btw-why do you create that JDialog?

You create JDialog and JFrame, why? You never call setVisible(true), why?
What you expect from the Action1?

Sorry for posting this answer to your comment as a new post, but it was too long to post it as a comment. You just can't remove close and minimize buttons from JFrame. If you want some window without those buttons, you have to create and customize your own JDialog. Nevertheless there will still be a close button (X). You can make your JDialog undecorated and make it to behave more like JFrame when you implement something like this:
class CustomizedDialog extends JDialog {
public CustomizedDialog(JFrame frame, String str) {
super(frame, str);
super.setUndecorated(true);
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
System.exit(0);
}
});
}
}
And then you can call it in your code with this:
CustomizedDialog myCustomizedDialog = new CustomizedDialog(new JFrame(), "My title");
JPanel panel = new JPanel();
panel.setSize(256, 256);
myCustomizedDialog.add(panel);
myCustomizedDialog.setSize(256, 256);
myCustomizedDialog.setLocationRelativeTo(null);
myCustomizedDialog.setVisible(true);
I hope, this helps :)

Java JCombobox do not change the image in JPanel

I have a problem.
I have an element that would JPanel.
In this JPanel would be four JButtons and image.
This image is 'green LED lights' that would change depending on which JButton would be pressed.
It works very well.
But also I want the JComboBox to change this paramter.
And here's the problem.
Although the parameter (from 1 to 4) is changing,(this shows JLabel near LEDs),
but the picture (LED lights) do not want to change it to the right one.
screenshot
The program is divided into 3 classes.
MyFrame.class This main class.
public class MyFrame extends JFrame {
int ctrlTriggers = 1;
private JLabel label = new JLabel();
private Triggers triggers;
private String[] typeTrig = {"1", "2", "3", "4"};
public MyFrame() {
JFrame frame = new JFrame("JComboBox Problem");
frame.setBounds(50, 0, 800, 240);
frame.setLayout(new BorderLayout());
int tvalue = 1;
String tstr = Integer.toString(tvalue);
JPanel panelTrig = new JPanel(new BorderLayout());
label = new JLabel(tstr, 4);
panelTrig.add(label);
final JLabel et = label;
triggers = new Triggers(typeTrig, "trigger " + Integer.toString(1));
triggers.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
Triggers tr = (Triggers) e.getSource();
int vol;
vol = (int) tr.getValue();
et.setText(Integer.toString(vol));
}
});
panelTrig.add(triggers, BorderLayout.LINE_START);
// JCOMBOBOX
JPanel pCombo = new JPanel();
pCombo.setLayout(new FlowLayout());
Presets combo = new Presets();
combo.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent e) {
Presets presetcombo = (Presets) e.getSource();
int tval;
tval = (int) presetcombo.getValue(ctrlTriggers);
label.setText(Integer.toString(tval));
triggers.setValue(tval);
}
});
pCombo.add(combo, BorderLayout.CENTER);
frame.add(pCombo, BorderLayout.CENTER);
frame.add(panelTrig, BorderLayout.LINE_START);
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
frame.show();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new MyFrame();
}
});
}
}
Triggers.class This class is JPanel where is 4 JButton and 'LED like image'
public class Triggers extends JPanel
implements ActionListener, ItemListener {
public Triggers(String s[], String name) {
JPanel panel = new JPanel(new BorderLayout());
this.value = Integer.parseInt(s[selected]);
for (int i = 0; i < s.length; i++) {
ImageIcon cup = new ImageIcon();
button[i] = new JButton(z[i], cup);
button[i].setPreferredSize(new Dimension(70, 25));
Font font = button[i].getFont();
button[i].setFont(new Font(font.getFontName(), font.getStyle(), 10));
button[i].setActionCommand(s[i]);
if (i == selected) {
button[i].setSelected(true);
} else {
button[i].setSelected(false);
}
}
ButtonGroup group = new ButtonGroup();
for (int i = 0; i < s.length; i++) {
group.add(button[i]);
button[i].addActionListener(this);
button[i].addItemListener(this);
}
diody = new JLabel(createImageIcon("/resources/diody/"
+ this.value
+ ".png"));
diody.setPreferredSize(new Dimension(20, 100));
JPanel triggs = new JPanel(new FlowLayout());
triggs.setPreferredSize(new Dimension(80, 120));
for (int i = 0; i < s.length; i++) {
triggs.add(button[i]);
}
panel.add(triggs, BorderLayout.LINE_START);
panel.add(diody, BorderLayout.LINE_END);
add(panel);
}
public void actionPerformed(ActionEvent e) {
cmd = e.getActionCommand();
diody.setIcon(createImageIcon("/resources/diody/"
+ cmd
+ ".png"));
if (cmd.equals("1")) {
setValue(1);
} else if (cmd.equals("2")) {
setValue(2);
} else if (cmd.equals("3")) {
setValue(3);
} else if (cmd.equals("4")) {
setValue(4);
}
}
public static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = Triggers.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
public int setController() {
return value;
}
public void setValue(int k) {
this.value = k;
cmd = Integer.toString(this.value);
repaint();
fireChangeEvent();
}
public int getValue() {
return this.value;
}
public void setSel(int k) {
selected = k;
repaint();
fireChangeEvent();
}
public void itemStateChanged(ItemEvent ie) {
String s = (String) ie.getItem();
}
public void addChangeListener(ChangeListener cl) {
listenerList.add(ChangeListener.class, cl);
}
public void removeChangeListener(ChangeListener cl) {
listenerList.remove(ChangeListener.class, cl);
}
protected void fireChangeEvent() {
Object[] listeners = listenerList.getListenerList();
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ChangeListener.class) {
if (changeEvent == null) {
changeEvent = new ChangeEvent(this);
}
((ChangeListener) listeners[i + 1]).stateChanged(changeEvent);
}
}
}
private ChangeEvent changeEvent = null;
private EventListenerList listenerList = new EventListenerList();
private JLabel diody;
private int x = 1;
private int y = 4;
private JButton button[] = new JButton[y];
double border = 4;
double vborder = 1;
int controller[] = new int[4];
String z[] = {"1", "2", "3", "4"};
private int selected;
private int value;
private String cmd;
}
class Presets Here is JCombobox.
public class Presets extends JPanel
implements ActionListener {
private int value;
private int[] ctrlIdx = new int[27];
private int controller;
private ChangeEvent changeEvent = null;
private EventListenerList listenerList = new EventListenerList();
private JLabel label;
private String[][] presets = {
{"0", "3"},
{"1", "2"},
{"2", "3"},
{"3", "1"},
{"4", "4"},
{"5", "2"},};
String[] ctrlName = {"preset 1 (value 3)", "preset 2 (value 2)", "preset 3 (value 3)", "preset 4 (value 1)", "preset 5 (value 4)", "preset 5 (value 2)"};
public Presets() {
JPanel panel = new JPanel();
panel.setLayout(new BorderLayout());
panel.setPreferredSize(new Dimension(600, 30));
JComboBox combolist = new JComboBox(ctrlName);
combolist.setSelectedIndex(2);
combolist.addActionListener(this);
combolist.setPreferredSize(new Dimension(300, 30));
label = new JLabel();
label.setFont(label.getFont().deriveFont(Font.ITALIC));
label.setHorizontalAlignment(JLabel.CENTER);
int indeks = combolist.getSelectedIndex();
updateLabel(ctrlName[combolist.getSelectedIndex()], indeks);
label.setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 0));
label.setPreferredSize(new Dimension(300, 30));
panel.add(combolist, "East");
add(panel);
setPreferredSize(new Dimension(600, 40));
}
public void setSelectedItem(int a) {
}
public void setValue(int c, int v) {
controller = c;
value = v;
ctrlIdx[controller] = value;
repaint();
fireChangeEvent();
}
public int getController() {
return controller;
}
public int getValue(int c) {
int w = (int) ctrlIdx[c];
return (int) w;
}
public void actionPerformed(ActionEvent e) {
JComboBox cb = (JComboBox) e.getSource();
String pres = (String) cb.getSelectedItem();
int indeks = cb.getSelectedIndex();
updateLabel(pres, indeks);
for (int i = 0; i < ctrlName.length; i++) {
for (int j = 0; j < 2; j++) {
setValue(j, Integer.parseInt(presets[indeks][j]));
}
}
}
protected void updateLabel(String name, int ii) {
label.setToolTipText("A drawing of a " + name.toLowerCase());
}
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = Presets.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
public void addChangeListener(ChangeListener cl) {
listenerList.add(ChangeListener.class, cl);
}
public void removeChangeListener(ChangeListener cl) {
listenerList.remove(ChangeListener.class, cl);
}
protected void fireChangeEvent() {
Object[] listeners = listenerList.getListenerList();
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ChangeListener.class) {
if (changeEvent == null) {
changeEvent = new ChangeEvent(this);
}
((ChangeListener) listeners[i + 1]).stateChanged(changeEvent);
}
}
}
}
Could someone help me, what am I doing wrong?

Your image is only begin loaded in the actionPerformed method of your Triggers class, which means when you call setValue in response to the stateChanged event thrown by the Presets class, no new image is begin loaded.
Move your image loading logic so it is either in the setValue method or triggered by the setValue method