How can I align components in a JFrame vertically?

How can I align components in a JFrame vertically? - java

I have tried multiple solutions but nothing fits me!
I want to align everything vertically on the center of the frame.
window=new JFrame();
window.setSize(520, 380);
window.setTitle("Menu");
window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
window.setLayout(new FlowLayout());
label=new JLabel("Settings",JLabel.CENTER);
controlPanel= new JPanel();
controlPanel.setLayout(new GridLayout(10,1));
controlPanel.add(button1);//these are example components
controlPanel.add(button2);
controlPanel.add(button3);
window.add(label);
window.add(controlPanel);
window.setVisible(true);
I want to have as a title the word "Settings" and exactly underneath it my components.
I was able to do this with a gridLayout instead of FlowLayout but the title occupies half of the screen(and i dont want that).
sorry for a basic question like that but i am new to java :)

You could use GridBagLayout, for example...
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.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
public class TestLayout {
public static void main(String[] args) {
new TestLayout();
}
public TestLayout() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
setBorder(new EmptyBorder(50, 50, 50, 50));
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.fill = GridBagConstraints.HORIZONTAL;
add(new JButton("Apples"), gbc);
add(new JButton("Pears"), gbc);
add(new JButton("Organges"), gbc);
add(new JButton("Grapes"), gbc);
}
}
}
Remember, with it's flexibility, comes complexity. Have a look at How to Use GridBagLayout for more details

Related

Having trouble getting the swing layout to work as I want.

I have a simple GUI and I just want to have some text fields stacked on top of each other, with each box being a JPanel. I'm currently using FlowLayout for both the JFrame and JPanel but it changes from being stacked to being in a row when I maximize. Ideally I'd like the text fields to stay in the center of the window even if its maximized. I was looking at using a BoxLayout but was having some trouble getting that to work.
public static Component textbox(String x){
JPanel panel = new JPanel(new FlowLayout(5,5,5));
JLabel lbltAm= new JLabel(x);
JTextField tftAm = new JTextField(10);
lbltAm.setFont(new Font("Serif", Font.PLAIN, 14));
lbltAm.setForeground(Color.white);
panel.add(lbltAm, BorderLayout.NORTH);
panel.add(tftAm, BorderLayout.CENTER);
panel.setBackground(Color.DARK_GRAY);
Border lowerbevel = BorderFactory.createBevelBorder(BevelBorder.LOWERED);
panel.setBorder(lowerbevel);
return panel;
}
private static void createAndShowGUI() {
//Create and set up the window.
JFrame frame = new JFrame("Tip Calculator");
//Add Textbox
frame.setLayout(new BoxLayout(frame, BoxLayout.Y_AXIS));
String Label = "Tip Calculator";
JLabel header = new JLabel(Label);
header.setFont(new Font("Serif", Font.BOLD, 18));
frame.add(header);
frame.add(textbox("Total"));
frame.add(textbox("Tip %"));
frame.add(textbox("People"));
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setBackground(Color.gray);
frame.setPreferredSize(new Dimension(300, 400));
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}

It's a matter of opinion, but for flexibility, I prefer to use GridBagLayout
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.BevelBorder;
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() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
add(textbox("Total"), gbc);
add(textbox("Tip %"), gbc);
add(textbox("People"), gbc);
}
public Component textbox(String x) {
JPanel panel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.insets = new Insets(5, 5, 5, 5);
JLabel lbltAm = new JLabel(x);
JTextField tftAm = new JTextField(10);
lbltAm.setFont(new Font("Serif", Font.PLAIN, 14));
lbltAm.setForeground(Color.white);
panel.add(lbltAm, gbc);
panel.add(tftAm, gbc);
panel.setBackground(Color.DARK_GRAY);
Border lowerbevel = BorderFactory.createBevelBorder(BevelBorder.LOWERED);
panel.setBorder(lowerbevel);
return panel;
}
}
}
Or if your wanted the "boxes" to occupy the whole area when expanded, you could use something like...
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.weightx = 1;
gbc.weighty = 1;
gbc.fill = GridBagConstraints.BOTH;
add(textbox("Total"), gbc);
add(textbox("Tip %"), gbc);
add(textbox("People"), gbc);
Which results in something like...
Have a look at Laying Out Components Within a Container and How to Use GridBagLayout for more details

Firstly, I don't know why you're adding components to the JPanel with a method that is for BorderLayout after you've set the layout of panel as FlowLayout.
If you want to keep the components centered at all times (even if the screen is maximized), FlowLayout is probably not the best option for you to work with, as FlowLayout continues to position components horizontally until they fill the width of the frame (one row) and then, it begins the next row. Therefore, if the screen size is maximized, there will be more components per row and they won't be stacked. I would suggest using a GridLayout with one column like so:
frame.setLayout(new GridLayout(3 *(number of rows/components)*, 1));
You can do the same with the JPanel. After that, set the horizontal alignment of each component as centered like so:
component.setHorizontalAlignment(componentName.CENTER);
Hope this helps!

Try to use GridLayout instead of BoxLayout in createAndShowGUI.
frame.setLayout(new GridLayout(4,1));

How to get 2 JPanels within 1 JPanel, resizable, with fixed proportion?

Let's say a JFrame contains just 1 JPanel. This JPanel is divided into 2 JPanels occupying accordingly 0.75 and 0.25 of the JFrame height. I want all of this to be resizable along with the window size.
I have no idea how to do this in Java.
I'm a newbie to Java. I've read a bit about layouts, but all I can see is how to set preferred size in constructor (ceasing to resize when this number is reached) or some fixed sizes obtained through setting borders.

JFrame with a BorderLayout, onto that, add a JPanel with a GridBagLayout. Add your other two panels onto this.
See Laying Out Components Within a Container and How to Use GridBagLayout for more details
import java.awt.Color;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
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();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.fill = GridBagConstraints.BOTH;
gbc.weightx = 1;
gbc.weighty = 0.75;
JPanel top = new JPanel(new GridBagLayout());
top.add(new JLabel("Top"));
top.setBackground(Color.RED);
add(top, gbc);
gbc.gridy++;
gbc.weighty = 0.25;
JPanel bottom = new JPanel(new GridBagLayout());
bottom.add(new JLabel("Bottom"));
bottom.setBackground(Color.BLUE);
add(bottom, gbc);
}
#Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
}
}

Set JTextField width to match width of JPanel

I'm looking for a way to set the display of a JTextField to take up the entire width of the JPanel that contains it.
The only method I've been able to find to do this is the setColumns() method combined with a getWidth() method called on the JPanel after the pack() and setVisible() methods are called. But when I do this the JTextField ends up much larger than the JPanel that encloses it. My assumption on why this happens is that the getWidth() returns that size of the JPanel in pixels, and the columns in the JTextField are all larger than a pixel.
I'm not even looking for the field to dynamically resize, just to be as wide as the JPanel at the start of the program
Any help greatly appreciated

Make use of an appropriate layout manager...
Remember, it's not the responsibility of the component to decide how big it should, that's the responsibility of the layout manager, the component can only provide hints about how big it would like to be...
For example, you could do this with a GridBagLayout...
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
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();
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
JTextField field = new JTextField(10);
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.weightx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
add(field, gbc);
}
#Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
}
}
Take a look at Laying Out Components Within a Container for more details

How can I build 2 JButton instances of the same width

I have 2 buttons, one named btnShort and one named btnLong. I'd like them to be of the same width, so what would be the best option?
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class TestCode2 {
public static void main(String[] args) {
JFrame window = new JFrame("Test2");
window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
window.setSize(400, 200);
// ---------------------------------------------------------------------
GridBagLayout layout = new GridBagLayout();
GridBagConstraints constraints = new GridBagConstraints();
JPanel container = new JPanel(layout);
window.add(container);
constraints.gridy = 0;
JButton btnShort = new JButton("Short");
layout.setConstraints(btnShort, constraints);
container.add(btnShort);
constraints.gridy = 1;
JButton btnLong = new JButton("That's a long button");
layout.setConstraints(btnLong, constraints);
container.add(btnLong);
//This one won't work because button dimension is not known yet...
//btnShort.setPreferredSize(new Dimension(btnLong.getWidth(), btnLong.getHeight()));
// ---------------------------------------------------------------------
window.setVisible(true);
}
}

Set the GridBagConstraints fill property to GridBagConstraints.HORIZONTAL so that both JButton components occupy equal width in the container
constraints.fill = GridBagConstraints.HORIZONTAL;

Make use of an appropriate layout manager, like GridBagLayout and it's constraints...
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class Buttons {
public static void main(String[] args) {
new Buttons();
}
public Buttons() {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException ex) {
} catch (InstantiationException ex) {
} catch (IllegalAccessException ex) {
} catch (UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.fill = GridBagConstraints.HORIZONTAL;
add(new JButton("I'm a very long button"), gbc);
add(new JButton("I'm not"), gbc);
}
#Override
public Dimension getPreferredSize() {
return new Dimension(200, 200);
}
}
}

Working with nested Panels

Trying to build out a GUI for my game but no matter what layout I work with I can't get the nest of panels to do what I like
My goal is this
http://i182.photobucket.com/albums/x202/NekoLLX/CharGenmockup-1.jpg
http://i182.photobucket.com/albums/x202/NekoLLX/CharGenmockup2.jpg
And Building off the Mad ones excelent revision I've got my left side as i like it but now the right eludes me
The general idea is that clicking on the title bars of the left menu will colapase (set visible to false) the content panes associated with them
//http://docs.oracle.com/javase/7/docs/api/java/awt/Color.html
//http://stackoverflow.com/questions/16430922/working-with-nested-panels
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
import java.awt.*;
import javax.swing.*;
import javax.swing.text.*;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.*;
public class JaGCharCreation {
//set inital size of window
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
int initalWidth = (int) screenSize.width - 50;
int initalHeight = (int) screenSize.height - 50;
public static void main(String[] args) {
new JaGCharCreation ();
}
//set up thread safe invoking for GUI
public JaGCharCreation () {
EventQueue.invokeLater(new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
//frame.setLocationRelativeTo(null);
frame.setVisible(true);
// Give the frame an initial size.
frame.setSize(initalWidth, initalHeight);
}
});
}
//main panel to hold all others
public class TestPane extends JPanel {
public TestPane() {
setLayout(new GridLayout(0, 2));
add(createLeftPane());
add(createRightPane());
}//end of class for master frame
protected JPanel createLeftPane() {
JLabel CharName = new JLabel("Character Name");
CharName.setFont(new Font("Impact", Font.BOLD, 30));
CharName.setBorder(new EmptyBorder(0, 81,0, 00));
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(new EmptyBorder(10, 10, 10, 10));
panel.setBackground(Color.RED);
JPanel content = new JPanel(new GridBagLayout());
content.setOpaque(false);
JPanel view3D = new JPanel();
view3D.setBackground(Color.DARK_GRAY);
JPanel view2D = new JPanel();
view2D.setBackground(Color.PINK);
JPanel viewIsometric = new JPanel();
viewIsometric.setBackground(Color.YELLOW);
JPanel viewData = new JPanel();
viewData.setBackground(Color.MAGENTA);
JPanel top = new JPanel(new GridLayout(0, 2));
top.setBorder(new EmptyBorder(0, 80,0, 80));
top.setBackground(Color.GREEN);
top.add(view3D);
top.add(view2D);
JPanel bottom = new JPanel(new GridLayout(2, 0));
bottom.setBorder(new EmptyBorder(0, 80,0, 80));
bottom.setBackground(Color.GREEN);
bottom.add(viewIsometric);
bottom.add(new JScrollPane(viewData));
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.weighty = 0.5f;
gbc.weightx = 1f;
gbc.fill = GridBagConstraints.BOTH;
content.add(top, gbc);
content.add(bottom, gbc);
panel.add(content);
panel.add(CharName, BorderLayout.NORTH);
return panel;
}//end left pane
protected JPanel createRightPane() {
JPanel panel = new JPanel(new BorderLayout());
panel.setBackground(Color.BLUE);
//set up our image for the title bars
ImageIcon icon = new ImageIcon("GradientDetail.png");
Image img = icon.getImage();
img = img.getScaledInstance(initalWidth/2, 40, java.awt.Image.SCALE_SMOOTH);
final ImageIcon iconSM = new ImageIcon(img);
JPanel name_panel = new JPanel(new BorderLayout())
{
protected void paintComponent(Graphics g)
{
// Dispaly image at full size
g.drawImage(iconSM.getImage(), 0, 0, null);
super.paintComponent(g);
}
};
name_panel.setOpaque( false );
JLabel label = new JLabel(" Character Name");
label.setFont(new Font("Impact", Font.BOLD, 30));
label.setForeground(Color.white);
label.setOpaque(false);
JPanel name_panel_text = new JPanel(new BorderLayout());
name_panel_text.setBackground(Color.WHITE);
name_panel.add(label, BorderLayout.NORTH);
panel.add(name_panel_text);
panel.add(name_panel);
return panel;
}//end right pane
//bassed from http://stackoverflow.com/questions/7340001/determine-clicked-jpanel-component-in-the-mouselistener-event-handling
public class MouseAdapterMod extends MouseAdapter {
// usually better off with mousePressed rather than clicked
public void mousePressed(MouseEvent e) {
if (e.getSource() == "name_panel"){
}
}
}
}//end master panel set
}//end master class

Something along the lines of ...
To be honest, I tried following your code, but got lost, so I re-wrote it...
Basically, you relying on setSize which is going to be ignored and changed by the layout managers as they see fit.
This example uses GridBagLayout and weighty to adjust the space allocated to the top (2D/3D) views and the bottom views, but you should also take a look at overriding the getPreferredSize of the final components, to provide better hints to the layout managers.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
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) {
}
JFrame frame = new JFrame("Testing");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(new TestPane());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class TestPane extends JPanel {
public TestPane() {
setLayout(new GridLayout(0, 2));
add(createLeftPane());
add(createRightPane());
}
protected JPanel createLeftPane() {
JPanel panel = new JPanel(new BorderLayout());
panel.setBorder(new EmptyBorder(10, 10, 10, 10));
panel.setBackground(Color.RED);
JPanel content = new JPanel(new GridBagLayout());
content.setOpaque(false);
JPanel view3D = new JPanel();
view3D.setBackground(Color.DARK_GRAY);
JPanel view2D = new JPanel();
view2D.setBackground(Color.PINK);
JPanel viewIsometric = new JPanel();
viewIsometric.setBackground(Color.YELLOW);
JPanel viewData = new JPanel();
viewData.setBackground(Color.MAGENTA);
JPanel top = new JPanel(new GridLayout(0, 2));
top.setBorder(new LineBorder(Color.GREEN, 2));
top.add(view3D);
top.add(view2D);
JPanel bottom = new JPanel(new GridLayout(2, 0));
bottom.add(viewIsometric);
bottom.add(new JScrollPane(viewData));
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.weighty = 0.5f;
gbc.weightx = 1f;
gbc.fill = GridBagConstraints.BOTH;
content.add(top, gbc);
content.add(bottom, gbc);
panel.add(content);
panel.add(new JLabel("Character name"), BorderLayout.NORTH);
return panel;
}
protected JPanel createRightPane() {
JPanel panel = new JPanel();
panel.setBackground(Color.BLUE);
return panel;
}
}
}

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

How can I align components in a JFrame vertically? - java

Related

Having trouble getting the swing layout to work as I want.

How to get 2 JPanels within 1 JPanel, resizable, with fixed proportion?

Set JTextField width to match width of JPanel

How can I build 2 JButton instances of the same width

Working with nested Panels

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