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How can I add for JPanel show/hide action to the JButton in implemented ActionListener?

I am trying to understand implemented ActionListener. I couldn't find a way out to add it to JButtons in an othor method. I simply trying to add show and hide action to buttons but I could't. Any help? My code is here. There are 3 colored JPanel and every button should hide or show related color JPanel.
import java.awt.Color;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.Border;
public class ShowHidePanels implements ActionListener {
public static void main(String[] args) {
new ShowHidePanels();
}
public ShowHidePanels() {
JFrame frame = new JFrame();
frame.setLayout(new GridLayout(1, 2));
frame.add(bluePanel());
frame.add(greenPanel());
frame.add(redPanel());
frame.add(buttonPanel());
frame.setSize(950, 600);
frame.setLocationRelativeTo(null);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
public static JPanel greenPanel() {
String greenTitle = "Green Panel";
Border greenBorder = BorderFactory.createTitledBorder(greenTitle);
JPanel greenPanel = new JPanel();
greenPanel.setBorder(greenBorder);
greenPanel.setBackground(new Color(165, 195, 70));
return greenPanel;
}
public static JPanel bluePanel() {
String blueTitle = "Blue Panel";
Border blueBorder = BorderFactory.createTitledBorder(blueTitle);
JPanel bluePanel = new JPanel();
bluePanel.setBorder(blueBorder);
bluePanel.setBackground(new Color(80, 105, 212));
return bluePanel;
}
public static JPanel redPanel() {
String redTitle = "Kirmizi Panel";
Border redBorder = BorderFactory.createTitledBorder(redTitle);
JPanel redPanel = new JPanel();
redPanel.setBorder(redBorder);
redPanel.setBackground(new Color(255, 100, 90));
return redPanel;
}
public static JPanel buttonPanel() {
Border greyBorder = BorderFactory.createTitledBorder("Grey Panel");
JButton b_BlueHide = new JButton("Hide Blue");
JButton b_BlueShow = new JButton("Show Blue");
JButton b_RedHide = new JButton("Hide Red");
JButton b_RedShow = new JButton("Show Red");
JButton b_GreenHide = new JButton("Hide Green");
JButton b_GreenShow = new JButton("Show Green");
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new GridLayout(0, 1));
buttonPanel.setBorder(greyBorder);
buttonPanel.setBackground(new Color(200, 200, 200));
buttonPanel.add(b_BlueHide);
buttonPanel.add(b_BlueShow);
buttonPanel.add(b_GreenHide);
buttonPanel.add(b_GreenShow);
buttonPanel.add(b_RedHide);
buttonPanel.add(b_RedShow);
return buttonPanel;
}
#Override
public void actionPerformed(ActionEvent event) {
}
}

static is not your friend. It has its place and purpose, but this is not one of them. Learn to live without it.
Instead, your methods and components should be instance based (that is, obviously, not static and reliant on a instance of the parent class).
The following example is slightly modified and makes use of a CardLayout to switch the panels, which is a lot more fun then trying to handle z-order issues ;)
Take a look at How to Use CardLayout
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.Border;
public class Test {
public static void main(String[] args) {
new Test();
}
public Test() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
JFrame frame = new JFrame();
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel implements ActionListener {
private CardLayout cardLayout;
private JPanel contentPane;
public TestPane() {
cardLayout = new CardLayout();
setLayout(new BorderLayout());
contentPane = new JPanel(cardLayout);
contentPane.add(bluePanel(), "blue");
contentPane.add(greenPanel(), "green");
contentPane.add(redPanel(), "red");
add(contentPane);
add(buttonPanel(), BorderLayout.SOUTH);
}
public JPanel greenPanel() {
String greenTitle = "Green Panel";
Border greenBorder = BorderFactory.createTitledBorder(greenTitle);
JPanel greenPanel = new JPanel();
// Demonstration purposes only -----//
greenPanel.setPreferredSize(new Dimension(200, 200));
// ----- Demonstration purposes only //
greenPanel.setBorder(greenBorder);
greenPanel.setBackground(new Color(165, 195, 70));
return greenPanel;
}
public JPanel bluePanel() {
String blueTitle = "Blue Panel";
Border blueBorder = BorderFactory.createTitledBorder(blueTitle);
JPanel bluePanel = new JPanel();
// Demonstration purposes only -----//
bluePanel.setPreferredSize(new Dimension(200, 200));
// ----- Demonstration purposes only //
bluePanel.setBorder(blueBorder);
bluePanel.setBackground(new Color(80, 105, 212));
return bluePanel;
}
public JPanel redPanel() {
String redTitle = "Kirmizi Panel";
Border redBorder = BorderFactory.createTitledBorder(redTitle);
JPanel redPanel = new JPanel();
// Demonstration purposes only -----//
redPanel.setPreferredSize(new Dimension(200, 200));
// ----- Demonstration purposes only //
redPanel.setBorder(redBorder);
redPanel.setBackground(new Color(255, 100, 90));
return redPanel;
}
public JPanel buttonPanel() {
Border greyBorder = BorderFactory.createTitledBorder("Grey Panel");
JButton blue = new JButton("Blue");
JButton red = new JButton("Red");
JButton green = new JButton("Green");
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new GridLayout(0, 1));
buttonPanel.setBorder(greyBorder);
buttonPanel.setBackground(new Color(200, 200, 200));
buttonPanel.add(blue);
buttonPanel.add(green);
buttonPanel.add(red);
blue.addActionListener(this);
green.addActionListener(this);
red.addActionListener(this);
return buttonPanel;
}
#Override
public void actionPerformed(ActionEvent e) {
String cmd = e.getActionCommand();
if ("blue".equalsIgnoreCase(cmd)) {
cardLayout.show(contentPane, "blue");
} else if ("red".equalsIgnoreCase(cmd)) {
cardLayout.show(contentPane, "red");
} else if ("green".equalsIgnoreCase(cmd)) {
cardLayout.show(contentPane, "green");
}
}
}
}
There's a lot of room for simplification and reduction of duplicate workflows, but I'll leave that for you to figure out ;)

Placing the JPanel in JScrollPane [duplicate]

I've got a probelm with my swing ui lately. Everything works fine,untill i trigger a tooltip from a JButton.After that moving the mouse over the rest of the ui is causing weird artifacts and glitching.
Bugged:
I can't show the whole code because its too much but here im initialising the button :
GridBagConstraints bottompane_gbc = new GridBagConstraints();
toggleTorConnectionButton = new JButton();
toggleTorConnectionButton.setToolTipText("Toggles Tor Connection.");
toggleTorConnectionButton.setIcon(new ImageIcon(ResourceHandler.Menueicon3_1));
toggleTorConnectionButton.setMinimumSize(new Dimension(removeFinishedDownloads.getMinimumSize().width, toggleTorConnectionButton.getIcon().getIconHeight()+5));
toggleTorConnectionButton.addActionListener(); // unimportant
bottompane_gbc.gridy = 1;
bottompane_gbc.fill = GridBagConstraints.BOTH;
bottompane_gbc.insets = new Insets(0,15,10,5);
bottompane.add(ToggleTorConnectionButton,bottompane_gbc);
this.add(bottompane,BorderLayout.PAGE_END);
If anybody needs more information to help me pls feel free to ask.Im kind of desperated. XD
EDIT:
After some tinkering im guessing that the problem is related to swing and my use of it.Currently im using alot of Eventlisteners (is this bad?), that might slow down the awt thread ?
Here is a brief extract from HPROF:
http://www.pastebucket.com/96444
EDIT 2:
I was able to recreate the error in a handy and simple example. When you move over the button,wait for the tooltip and then over the ui.You will see ghosting :(.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
public class Main_frame {
public static void main(String[] args) {
new Main_frame();
}
public Main_frame() {
JFrame frame = new JFrame("LOL");
frame.setFocusable(true);
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(new Dimension(400, 500));
frame.setLocationRelativeTo(null);
Download_window download_window = new Download_window();
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.addTab("Download", null, download_window, "Main Download Window.");
for (int i = 0; i < 5; i++) {
JPanel pane = new JPanel();
Dimension dim = new Dimension(370, 60);
pane.setPreferredSize(dim);
pane.setMaximumSize(dim);
pane.setBackground(Color.blue);
pane.setMinimumSize(dim);
download_window.jobpanel.add(pane);
}
download_window.jobpanel.repaint();
download_window.jobpanel.revalidate();
frame.add(tabbedPane);
frame.setVisible(true);
}
public class Download_window extends JPanel {
JPanel jobpanel;
public Download_window() {
this.setLayout(new BorderLayout());
jobpanel = new JPanel();
jobpanel.setLayout(new BoxLayout(jobpanel, BoxLayout.Y_AXIS));
JPanel bottompane = new JPanel();
bottompane.setPreferredSize(new Dimension(385, 40));
JButton toggleTorConnectionButton = new JButton();
toggleTorConnectionButton.setPreferredSize(new Dimension(100, 50));
toggleTorConnectionButton.setToolTipText("Toggles Tor Connection.");
bottompane.add(toggleTorConnectionButton);
this.add(bottompane, BorderLayout.PAGE_END);
JScrollPane jobScrollPane = new JScrollPane(jobpanel);
jobScrollPane.getVerticalScrollBar().setUnitIncrement(16);
this.add(jobScrollPane, BorderLayout.CENTER);
}
}
}
Edit 3: Concerning trashgods ideas, I used the EventDispatchThread, I modified the setter to override the getter for size and i crossed out incompatibility by using trashgods code and it was working fine.... So where is the actual difference?
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
public class Main_frame {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
new Main_frame();
}
});
}
public Main_frame() {
JFrame frame = new JFrame("LOL");
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(new Dimension(400, 500));
Download_window download_window = new Download_window();
JTabbedPane tabbedPane = new JTabbedPane();
tabbedPane.addTab("Download", null, download_window, "Main Download Window.");
frame.add(tabbedPane);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public class Download_window extends JPanel {
JPanel jobpanel;
public Download_window() {
this.setLayout(new BorderLayout());
jobpanel = new JPanel();
jobpanel.setLayout(new BoxLayout(jobpanel, BoxLayout.Y_AXIS));
for (int i = 0; i < 5; i++) {
JPanel pane = new JPanel(){
#Override
public Dimension getPreferredSize() {
return new Dimension(370, 60);
}
#Override
public Dimension getMaximumSize() {
return new Dimension(370, 60);
}
#Override
public Dimension getMinimumSize() {
return new Dimension(370, 60);
}
};
pane.setBackground(Color.blue);
jobpanel.add(pane);
}
JPanel bottompane = new JPanel(){
#Override
public Dimension getPreferredSize() {
return new Dimension(385, 40);
}
};
JButton toggleTorConnectionButton = new JButton("Button"){
#Override
public Dimension getPreferredSize() {
return new Dimension(100, 30);
}
};
toggleTorConnectionButton.setToolTipText("Toggles Tor Connection.");
bottompane.add(toggleTorConnectionButton);
this.add(bottompane, BorderLayout.PAGE_END);
JScrollPane jobScrollPane = new JScrollPane(jobpanel);
jobScrollPane.getVerticalScrollBar().setUnitIncrement(16);
this.add(jobScrollPane, BorderLayout.CENTER);
}
}
}
Could anyone please verify that strange behavior himself? You just need to copy&paste the code from above in Edit3.

Your code exhibits none of the glitches shown above when run on my platform.
Verify that you have no painting problems e.g. neglecting super.paintComponent() as discussed here.
Verify that you have no driver incompatibilities, as discussed here.
Construct and modify all GUI objects on the event dispatch thread.
Don't use set[Preferred|Maximum|Minimum]Size() when you really mean to override get[Preferred|Maximum|Minimum]Size(), as discussed here. The example below overrides getPreferredSize() on the scroll pane, but you can implement Scrollable, as discussed here.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
/** #see https://stackoverflow.com/a/34319260/230513 */
public class MainFrame {
private static final int H = 64;
public static void main(String[] args) {
EventQueue.invokeLater(() -> new MainFrame());
}
public MainFrame() {
JFrame frame = new JFrame("LOL");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTabbedPane tabbedPane = new JTabbedPane();
JPanel panel = new JPanel(new GridLayout(0, 1, 5, 5));
for (int i = 0; i < 8; i++) {
panel.add(new DownloadPanel());
}
JScrollPane jsp = new JScrollPane(panel) {
#Override
public Dimension getPreferredSize() {
return new Dimension(6 * H, 4 * H);
}
};
tabbedPane.addTab("Download", null, jsp, "Main Download Window.");
tabbedPane.addTab("Options", null, null, "Options");
frame.add(tabbedPane);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static class DownloadPanel extends JPanel {
JPanel jobPanel = new JPanel();
public DownloadPanel() {
this.setLayout(new BorderLayout());
this.setBackground(Color.lightGray);
JProgressBar jpb = new JProgressBar();
jpb.setIndeterminate(true);
this.add(jpb);
JPanel buttonPane = new JPanel();
JButton toggleTorConnectionButton = new JButton("Button");
toggleTorConnectionButton.setToolTipText("Toggles Tor Connection.");
buttonPane.add(toggleTorConnectionButton);
this.add(buttonPane, BorderLayout.WEST);
}
#Override
public Dimension getPreferredSize() {
return new Dimension(4 * H, H);
}
}
}

Can't add JPanel to BorderLayout.CENTER

I am just Starting out with JAVA.
I have say a JPanel x, a JPanel y and a BorderLayout JPanel z.
When I try to change the contents of the center of z from default x t y, it works but it doesn't go back to x. I AM calling revalidate() after each. Help please.
The class below is where the problem is.
Main Class Below
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.LayoutManager;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
#SuppressWarnings({ "serial", "unused" })
public class Manager extends JFrame {
private JPanel contentPane;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
Manager frame = new Manager();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public Manager() {
setTitle("Popper");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
double width = screenSize.getWidth();
double height = screenSize.getHeight();
height = height/5.1;
setSize((int)width, (int)height);
setExtendedState(getExtendedState() | JFrame.MAXIMIZED_BOTH);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(0,0,0,0));
setContentPane(contentPane);
contentPane.setBackground(new Color(14,99,165));
contentPane.setLayout(new BorderLayout(0, 0));
ImageIcon image = new ImageIcon("D:/popper26.png");
setIconImage(image.getImage());
JPanel pane = new JPanel();
calcu cal = new calcu();
curr nup = new curr();
stopc newst = new stopc();
pane.setLayout(new FlowLayout(FlowLayout.CENTER));
JPanel mainpanel = new JPanel();
BorderLayout x =new BorderLayout(0,0);
mainpanel.setLayout(x);
mainpanel.setBackground(Color.WHITE);
JLabel madeby = new JLabel("Project By Anant Bhasin");
madeby.setHorizontalAlignment(SwingConstants.RIGHT);
mainpanel.add(madeby, BorderLayout.SOUTH);
JPanel logo = new JPanel();
logo.setLayout(new FlowLayout(FlowLayout.CENTER));
JLabel jk = new JLabel(new ImageIcon("D:/popper2.png"));
logo.add(jk, BorderLayout.NORTH);
logo.setBackground(Color.decode("#1abc9c"));
mainpanel.add(logo, BorderLayout.NORTH);
mainpanel.add(cal, BorderLayout.CENTER);
contentPane.add(mainpanel, BorderLayout.CENTER);
JPanel newj = new JPanel();
BoxLayout bxl = new BoxLayout(newj, BoxLayout.PAGE_AXIS);
newj.setLayout(bxl);
newj.setBackground(new Color(58,115,144));
contentPane.add(newj, BorderLayout.WEST);
Border emptyBorder = BorderFactory.createEmptyBorder();
JButton calc = new JButton(new ImageIcon("D:/calc.png"));
newj.add(calc);
calc.setBorder(emptyBorder);
calc.setFocusPainted(false);
calc.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
mainpanel.add(BorderLayout.CENTER, cal);
mainpanel.revalidate();
}
});
JButton currb = new JButton(new ImageIcon("D:/curr.png"));
currb.setBorder(emptyBorder);
newj.add(currb);
currb.setFocusPainted(false);
currb.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
mainpanel.add(BorderLayout.CENTER, nup);
mainpanel.revalidate();
}
});
JButton stop = new JButton(new ImageIcon("D:/stop.png"));
stop.setBorder(emptyBorder);
newj.add(stop);
stop.setFocusPainted(false);
stop.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
mainpanel.add(BorderLayout.CENTER, newst);
mainpanel.revalidate();
}
});
JButton timer = new JButton(new ImageIcon("D:/timer.png"));
timer.setBorder(emptyBorder);
newj.add(timer);
timer.setFocusPainted(false);
JButton memo = new JButton(new ImageIcon("D:/memo.png"));
memo.setBorder(emptyBorder);
newj.add(memo);
memo.setFocusPainted(false);
}
}

A BorderLayout is not designed to display multiple components with the same constraint because of the way ZOrder painting works in Swing.
If you need the ability to swap panels, then you should be using a CardLayout.
A CardLayout lets you specify the name of the panel that you want to display. Read the section from the Swing tutorial on How to Use CardLayout for more information and working examples.
You set up the layout with code like:
JPanel main = new JPanel( new CardLayout() );
main.add(panelx, "X");
main.add(panely, "Y");
Then to swap a panel you use code like:
CardLayout cl = (CardLayout)(main.getLayout());
cl.show(main, "X");

repaint JPanel with every click at JList

everytime i click on a JList item, i need to clear + refresh my current panel & load another panel, returned via method 'populateWithButtons()'. temp is an int variable that stores what was clicked at the JList. How do i rectify the following?
list_1.addMouseListener(new MouseAdapter() {
#Override
public void mouseClicked(MouseEvent evt) {
//refresh + populate JPanel
Food food = new Food();
JPanel panel2 = new JPanel();
JPanel pane11 = new JPanel();
panel2.add(panel1);
panel1.validate();
panel1.repaint();
panel1.setBounds(153, 74, 281, 269);
panel1.add(food.populateWithButtons(temp));
contentPane.add(panel2);
}

don't to use NullLayout
add ListSelectionListener to JList instead of MouseListener, otherwise you would need to convert point from mouse to Item in JList
use CardLayout instead of add, remove JPanels on runtime, then selection from ListSelectionListener (ListSelectionModel to SINGLE...) to switch prepared card (JPanel with some contents)
EDIT
.
.
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.SwingUtilities;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
public class CardlayoutTest {
private Color[] colors = new Color[]{Color.BLACK, Color.RED, Color.GREEN, Color.BLUE};
private JFrame frame = new JFrame();
private JList list = new JList();
private JPanel panel = new JPanel();
private CardLayout card = new CardLayout();
public CardlayoutTest() {
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
panel.setLayout(card);
Vector<String> items = new Vector<String>();
for (int x = 0; x < colors.length; x++) {
JPanel pnl = new JPanel(new BorderLayout());
pnl.setBackground(colors[x]);
panel.add(pnl, colors[x].toString());
items.add(colors[x].toString());
}
list = new JList(items);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
#Override
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
String card = list.getSelectedValue().toString();
CardLayout cL = (CardLayout) (panel.getLayout());
cL.show(panel, card);
}
}
});
frame.add(new JScrollPane(list), BorderLayout.WEST);
frame.add(panel);
frame.setPreferredSize(new Dimension(400, 150));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new CardlayoutTest();
}
});
}
}

move validate() and repaint() after adding to contentPane as in that point it will be redrawed.

Can't see the contetnts when jscrollpane's opaque set to false

Hi, I am making a program that has a JSplitPane and its background is transparent so I add two panels with a JScrollPane on the JSplitPane.. when I add the contents in the panel it doesn't appear.
This is the code that I was using:
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JViewport;
import javax.swing.UIManager;
public class sample {
JFrame mainFrame;
JPanel mainPanel;
JPanel splitPaneLeftPanel;
JPanel splitPaneRightPanel;
JSplitPane splitPane;
JScrollPane rightPanelScroll;
JScrollPane leftPanelScroll;
JViewport viewport;
sample(){
Frame();
SplitPaneAndContent();
mainFrame.setVisible(true);
}
public void Frame(){
mainFrame = new JFrame();
mainFrame.setTitle("Sample");
mainFrame.setLayout(new BorderLayout());
mainFrame.setSize(1024,720);
mainFrame.setMaximumSize(new Dimension(1366,768));
mainFrame.setMinimumSize(new Dimension(800,600));
mainFrame.setResizable(true);
mainFrame.setLocationRelativeTo(null);
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void SplitPaneAndContent(){
mainPanel = new JPanel(new BorderLayout());
splitPaneLeftPanel = new JPanel(new BorderLayout());
splitPaneRightPanel = new JPanel(new BorderLayout());
mainPanel.setBackground(Color.blue);
JScrollPane rightPanelScroll = new JScrollPane(splitPaneRightPanel);
JScrollPane LeftPanelScroll = new JScrollPane(splitPaneLeftPanel);
viewport = new JViewport();
rightPanelScroll.setViewport(viewport);
rightPanelScroll.getViewport().setOpaque(false);
JLabel Text = new JLabel("SAMPLE");
Text.setBackground(Color.red);
splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,LeftPanelScroll,rightPanelScroll);
splitPane.setDividerLocation(300);
splitPaneLeftPanel.setOpaque(false);
splitPaneRightPanel.setOpaque(false);
rightPanelScroll.setOpaque(false);
splitPane.setOpaque(false);
splitPaneRightPanel.add(Text, BorderLayout.CENTER);
mainPanel.add(splitPane, BorderLayout.CENTER);
mainFrame.add(mainPanel, BorderLayout.CENTER);
}
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
new sample();
}
catch (Exception e) {
System.out.println(e);
}
}
}