Develop Reference

What type of layout manager should I use for this frame?

I want to build this same frame in the image with Layout Manager
What I already did:
Used BorderLayout to add all three JLabel to BorderLayout.WEST(Used GridLayout(3,1).
Used BorderLayout to add all three JTextField to BorderLayout.CENTER(used GridLayout(3,1).
I build this frame by manually adding components using the setBounds method.

Here's my implementation of your screen capture.
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.WindowConstants;
public class SmplForm implements Runnable {
#Override // java.lang.Runnable
public void run() {
createAndDisplayGui();
}
private void createAndDisplayGui() {
JFrame frame = new JFrame("Nonce creator");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.add(createForm(), BorderLayout.CENTER);
frame.add(createButtonsPanel(), BorderLayout.PAGE_END);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
private JPanel createButtonsPanel() {
JPanel buttonsPanel = new JPanel();
JButton proceedButton = new JButton("Proceed");
buttonsPanel.add(proceedButton);
return buttonsPanel;
}
private JPanel createForm() {
JPanel form = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.anchor = GridBagConstraints.LINE_START;
gbc.gridx = 0;
gbc.gridy = 0;
gbc.insets.bottom = 5;
gbc.insets.left = 5;
gbc.insets.right = 5;
gbc.insets.top = 5;
JLabel transactionLabel = new JLabel("Transaction");
form.add(transactionLabel, gbc);
gbc.gridx = 1;
JTextField transactionTextField = new JTextField(20);
form.add(transactionTextField, gbc);
gbc.gridx = 0;
gbc.gridy = 1;
JLabel nonceLabel = new JLabel("Nonce");
form.add(nonceLabel, gbc);
gbc.gridx = 1;
JTextField nonceTextField = new JTextField(20);
form.add(nonceTextField, gbc);
gbc.gridx = 2;
JCheckBox autoCheckBox = new JCheckBox("Auto");
form.add(autoCheckBox, gbc);
gbc.gridx = 0;
gbc.gridy = 2;
JLabel hashLabel = new JLabel("Hash");
form.add(hashLabel, gbc);
gbc.gridx = 1;
JTextField hashTextField = new JTextField(20);
hashTextField.setText("8350e5a3e24c153df2275c9f80692773");
hashTextField.setEnabled(false);
form.add(hashTextField, gbc);
return form;
}
public static void main(String[] args) {
EventQueue.invokeLater(new SmplForm());
}
}

This GUI has three slight tweaks, the first two as seen in the example by Abra:
The button is center aligned.
The label for the check box is to the right of the check.
The labels are right aligned.
import java.awt.*;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
public class NonceCreator {
private JComponent ui = null;
NonceCreator() {
initUI();
}
public void initUI() {
if (ui!=null) return;
ui = new JPanel(new GridBagLayout());
ui.setBorder(new EmptyBorder(20,30,20,30));
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(5,5,5,5);
// add the labels
gbc.anchor = GridBagConstraints.EAST;
ui.add(new JLabel("Transaction"), gbc);
gbc.gridy = 1;
ui.add(new JLabel("Nonce"), gbc);
gbc.gridy = 2;
ui.add(new JLabel("Hash"), gbc);
gbc.anchor = GridBagConstraints.WEST;
// add the text fields
gbc.gridx = 1;
gbc.gridy = 0;
gbc.gridwidth = 2;
ui.add(new JTextField(30), gbc);
gbc.gridy = 2;
JTextField hashField = new JTextField(
"8350e5a3e24c153df2275c9f80692773", 30);
hashField.setEditable(false);
ui.add(hashField, gbc);
gbc.gridy = 1;
gbc.gridwidth = 1;
ui.add(new JTextField(20), gbc);
// add the check box
gbc.gridx = 2;
ui.add(new JCheckBox("Auto"), gbc);
// add the button
gbc.gridx = 0;
gbc.gridy = 3;
gbc.gridwidth = 3;
gbc.anchor = GridBagConstraints.CENTER;
ui.add(new JButton("Proceed"), gbc);
}
public JComponent getUI() {
return ui;
}
public static void main(String[] args) {
Runnable r = new Runnable() {
#Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Exception useDefault) {
}
NonceCreator o = new NonceCreator();
JFrame f = new JFrame(o.getClass().getSimpleName());
f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
f.setLocationByPlatform(true);
f.setContentPane(o.getUI());
f.pack();
f.setMinimumSize(f.getSize());
f.setVisible(true);
}
};
SwingUtilities.invokeLater(r);
}
}

I don't use a visual GUI Builder. I think you can use GroupLayout or GridBagLayout for a flexible design. Also you can use a design tool like Adobe XD, and convert this to Java. That will be easier.
Look at;
https://docs.oracle.com/javase/tutorial/uiswing/layout/group.html
https://docs.oracle.com/javase/tutorial/uiswing/layout/gridbag.html

Unable to layout properly with GridBagLayout

I am having issues with GridBagLayout & GridBagConstraints in a GUI I am beginning to build. I have to pictures, one of the current state of the GUI, & one of the desired state of the GUI. I have been trying to reach the desired state but have been unable to :(. Here is the code, & I will also attach the 2 pictures I mentioned above. Moreover, there is an issue with the way that I am formatting the first or second checkbox, but I have been unable to figure out what the issue is.
Driver Class:
import javax.swing.SwingUtilities;
public class Driver {
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new TheFrame();
}
});
}
}
JFrame Class:
import javax.swing.JFrame;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Insets;
public class TheFrame extends JFrame {
//Declarations
private GridBagConstraints gbc;
private String myString;
private JLabel selectionLab;
private JCheckBox defconLevel1;
private JCheckBox defconLevel2;
private JCheckBox defconLevel3;
private JCheckBox defconLevel4;
private JCheckBox defconLevel5;
public TheFrame() {
super("DEFCON DEACTIVATOR");
this.setSize(500,500);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.getContentPane().setLayout(new GridBagLayout());
//Initialization
gbc = new GridBagConstraints();
selectionLab = new JLabel("Please Select DECON Level");
defconLevel1 = new JCheckBox("DEFCON 1");
defconLevel2 = new JCheckBox("DEFCON 2");
defconLevel3 = new JCheckBox("DEFCON 3");
defconLevel4 = new JCheckBox("DEFCON 4");
defconLevel5 = new JCheckBox("DEFCON 5");
//Configuration
//Add to contentPane
//ROW 1
gbc.gridx = 0;
gbc.gridy = 0;
gbc.anchor = gbc.NORTH;
gbc.weighty = 1;
gbc.insets = new Insets(0,0,0,0);
this.getContentPane().add(selectionLab);
//ROW 2
gbc.gridx = 0;
gbc.gridy = 1;
gbc.anchor = gbc.NORTH;
gbc.weighty= 1;
gbc.insets = new Insets(0,0,0,0);
this.getContentPane().add(defconLevel1,gbc);
gbc.gridx = 1;
gbc.gridy = 1;
gbc.anchor = gbc.NORTH;
gbc.weighty= 1;
gbc.insets = new Insets(0,0,0,0);
this.getContentPane().add(defconLevel2,gbc);
gbc.gridx = 2;
gbc.gridy = 1;
gbc.anchor = gbc.NORTH;
gbc.weighty= 1;
gbc.insets = new Insets(0,0,0,0);
this.getContentPane().add(defconLevel3,gbc);
gbc.gridx = 3;
gbc.gridy = 1;
gbc.anchor = gbc.NORTH;
gbc.weighty= 1;
gbc.insets = new Insets(0,0,0,0);
this.getContentPane().add(defconLevel4,gbc);
gbc.gridx = 4;
gbc.gridy = 1;
gbc.anchor = gbc.NORTH;
gbc.weighty= 1;
gbc.insets = new Insets(0,0,0,0);
this.getContentPane().add(defconLevel5,gbc);
}
}
Updated Code:
Driver Class
import javax.swing.SwingUtilities;
public class Driver {
//Declarations
private static SelectionPanel selectionPanel;
private static HeaderPanel headerPanel;
private static TheFrame frame = new TheFrame(selectionPanel,headerPanel);
// public Driver() {
//
// }
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new Driver();
}
});
}
}
TheFrame Class
import javax.swing.JFrame;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Insets;
public class TheFrame extends JFrame {
//Declarations
private GridBagConstraints gbc;
private SelectionPanel selectionPanel;
private HeaderPanel headerPanel;
public TheFrame(SelectionPanel selectionPanel, HeaderPanel headerPanel) {
super("DEFCON DEACTIVATOR");
this.selectionPanel = selectionPanel;
this.headerPanel = headerPanel;
//Initialization
gbc = new GridBagConstraints();
selectionPanel = new SelectionPanel();
headerPanel = new HeaderPanel();
this.getContentPane().setLayout(new GridBagLayout());
//Configuration
//Add to contentPane
gbc.anchor = gbc.NORTH; //Content-Pane GLOBAL
gbc.insets = new Insets(0,0,0,0); //Content-Pane GLOBAL
gbc.weightx = 0; //Content-Pane GLOBAL
gbc.weighty = 0.05;
gbc.gridx = 0;
gbc.gridy = 0;
this.getContentPane().add(headerPanel,gbc);
gbc.weighty = 1;
gbc.gridx = 0;
gbc.gridy = 1;
this.getContentPane().add(selectionPanel,gbc);
//Finalize JFrame Last Steps Configurations
this.setSize(500,500);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
SelectionPanel Class
import java.awt.Insets;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JPanel;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
public class SelectionPanel extends JPanel {
//Declarations
private JCheckBox defconLevel1;
private JCheckBox defconLevel2;
private JCheckBox defconLevel3;
private JCheckBox defconLevel4;
private JCheckBox defconLevel5;
private GridBagConstraints gbc;
public SelectionPanel() {
//Initializations
defconLevel1 = new JCheckBox("DEFCON 1");
defconLevel2 = new JCheckBox("DEFCON 2");
defconLevel3 = new JCheckBox("DEFCON 3");
defconLevel4 = new JCheckBox("DEFCON 4");
defconLevel5 = new JCheckBox("DEFCON 5");
gbc = new GridBagConstraints();
//Configuration
this.setLayout(new GridBagLayout());
//Add
//ROW 1
gbc.insets = new Insets(0,0,0,0); //Content-Pane Global
//gbc.anchor = gbc.EAST; //Makes Elements chain-follow each other
gbc.gridy = 0;
gbc.gridx = 0;
this.add(defconLevel1,gbc);
gbc.gridx = 1;
this.add(defconLevel2,gbc);
gbc.gridx = 2;
this.add(defconLevel3,gbc);
gbc.gridx = 3;
this.add(defconLevel4,gbc);
gbc.gridx = 4;
this.add(defconLevel5,gbc);
}
}
HeaderPanel Class
import javax.swing.JPanel;
import javax.swing.JLabel;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
public class HeaderPanel extends JPanel {
private JLabel headerLab;
private GridBagConstraints gbc;
public HeaderPanel() {
//Initialize
headerLab = new JLabel("PLEASE SELECT DEFCON LEVEL");
gbc = new GridBagConstraints();
//Configure
this.setLayout(new GridBagLayout());
//Add
gbc.gridx = 0;
gbc.gridy = 0;
this.add(headerLab,gbc);
}
}
Present Picture:
Wished Design:
Updated Image:

The constraint for the label also needs:
gbc.gridwitdh = 5;
This will allow the label to take up the same horizontal space as the 5 checkboxes, allowing each check box to be displayed in its own column.
You will then need to reset the gridwidth to 1 before adding the other components.
Another option might be to use a Titled Border on your panel. Then you can just use a FlowLayout for adding all the check boxes. This is an easier solution since you don't need to worry about all the GridBagConstraints.
Edit:
Read the section from the Swing tutorial on How to Use GridBagLayout for information about all the constraints.
The first thing you need to do is actually use the constraints for the label otherwise setting the gridwidth won't do anything as the default constrainsts will be used:
//this.getContentPane().add(selectionLab);
add(selectionLab, gbc);
It still won't look correct because you will then need to understand the proper values to be used with the following constraints:
weighty
anchor
weightx
I'll let you play with the constraints one at a time to see what happens as you change the constraint. The tutorial link will help with the different values.

Java GridBagLayout Aligning buttons

I have a problem with GridbagLayout; I've 5 buttons and I want to have them in this way:
I've already tried different approaches but no one works in the correct way.
For example:
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class TestGridBagLayout {
protected void initUI() {
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel southPanel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridwidth = 2;
gbc.gridy = 0;
JButton enterRoom = new JButton("Enter room");
JButton exitRoom = new JButton("Exit room");
JButton login = new JButton("Login");
JButton logout = new JButton("Logout");
JButton whoIsIn = new JButton("Who is in");
gbc.gridx = 1;
southPanel.add(enterRoom, gbc);
gbc.gridx = 5;
southPanel.add(exitRoom, gbc);
gbc.gridy = 1;
gbc.gridx = 0;
southPanel.add(login, gbc);
gbc.gridx = 3;
southPanel.add(logout, gbc);
gbc.gridx = 6;
southPanel.add(whoIsIn, gbc);
frame.add(southPanel);
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException,
UnsupportedLookAndFeelException {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new TestGridBagLayout().initUI();
}
});
}
}
Appears:
I'm not interested in other approaches (such as GridLayout), I'd like to know what I'm missing.

GridBagLayout can be a strange animal in some cases. But anyway, gridwidth is something that works, only if there is an actual component that requires some width within the "spanned" column (for example, if you say gridx=0 and gridwidth=2, column 0 has a component and the "spanned" column is column 1).
In your case, column 2, 4 & 7 have no components, so their width is set to 0. Additionnaly, column 5 also gets a width of 0, because column 6 provides enough witdth to the exit room button, so in the end you get the result you see.
Now, not sure of the kind of layout you are trying to achieve (I saw your screenshot, but how should it behave when the panel collapses/expands in width?). So find below, an example that comes a bit closer to what you describe (although I don't find it very nice)
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class TestGridBagLayout2 {
protected void initUI() {
JFrame frame = new JFrame("Test");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel southPanel = new JPanel(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridy = 0;
JButton enterRoom = new JButton("Enter room");
JButton exitRoom = new JButton("Exit room");
JButton login = new JButton("Login");
JButton logout = new JButton("Logout");
JButton whoIsIn = new JButton("Who is in");
gbc.gridx = 0;
gbc.weightx = 1.0;
gbc.anchor = GridBagConstraints.EAST;
southPanel.add(enterRoom, gbc);
gbc.anchor = GridBagConstraints.WEST;
gbc.gridx = 2;
southPanel.add(exitRoom, gbc);
gbc.gridy = 1;
gbc.gridx = 0;
southPanel.add(login, gbc);
gbc.weightx = 0;
gbc.gridx = 1;
southPanel.add(logout, gbc);
gbc.weightx = 1.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.gridx = 2;
southPanel.add(whoIsIn, gbc);
frame.add(southPanel);
frame.pack();
frame.setSize(frame.getWidth() * 4 / 3, frame.getHeight());
frame.setMinimumSize(frame.getSize());
frame.setVisible(true);
}
public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException,
UnsupportedLookAndFeelException {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
SwingUtilities.invokeLater(new Runnable() {
#Override
public void run() {
new TestGridBagLayout().initUI();
}
});
}
}

GridbagLayout seems to require a row where a component occupies all of the columns in the row. See: Why does this GridBagLayout not appear as planned? for the basis of this solution.
Note the that horizontal strut size was choosen to be half the size of the "Logout" button so that two cells with span the width of the logout button to give the centering of components that you desire.
import java.awt.*;
import javax.swing.*;
public class SSCCE extends JPanel
{
public SSCCE()
{
JButton enterRoom = new JButton("Enter room");
JButton exitRoom = new JButton("Exit room");
JButton login = new JButton("Login");
JButton logout = new JButton("Logout");
JButton whoIsIn = new JButton("Who is in");
setLayout( new GridBagLayout() );
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(5, 0,5, 0);
gbc.gridwidth = 2;
gbc.gridx = 1;
gbc.gridy = 0;
add(enterRoom, gbc);
gbc.gridx = 5;
gbc.gridy = 0;
add(exitRoom, gbc);
gbc.gridx = 0;
gbc.gridy = 1;
add(login, gbc);
gbc.gridx = 3;
gbc.gridy = 1;
add(logout, gbc);
gbc.gridx = 6;
gbc.gridy = 1;
add(whoIsIn, gbc);
// Add dummy components so every cell has a component.
gbc.insets = new Insets(0, 0, 0, 0);
gbc.gridwidth = 1;
gbc.gridy = 2;
int strutWidth = logout.getPreferredSize().width / 2;
for (int i = 0; i < 8; i++)
{
gbc.gridx = i;
add(Box.createHorizontalStrut(strutWidth), gbc);
}
}
private static void createAndShowGUI()
{
JFrame frame = new JFrame("SSCCE");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new SSCCE(), BorderLayout.NORTH);
frame.setLocationByPlatform( true );
frame.pack();
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}

Prevent components from spreading apart when resizing using GridBagLayout

Edit: Each time I try adding the gui tag, it switches to user-interface. Someone mind explaining/fixing that?
I want the client to be resizable. I want the JSeparator to fill the frame's width when resizing, but I want the JLabels to stay next to the fields.
It starts out like this, which the JLabels are too far apart from the fields as it is:
When I resize it horizontally, this is the result:
Which is obviously way too far apart. The code that I use to set up these components are:
public class LoginPanel extends JPanel {
private JTextField userfield = new JTextField(10);
private JPasswordField passfield = new JPasswordField(10);
private JButton login = new JButton("Login");
private JButton create = new JButton("Create Account");
public LoginPanel() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.anchor = GridBagConstraints.CENTER;
gbc.weightx = 1;
gbc.gridx = 2;
JLabel label = new JLabel("Username: ");
add(label, gbc);
gbc.gridx = 3;
gbc.gridwidth = 2;
add(userfield, gbc);
gbc.gridy = 1;
add(passfield, gbc);
gbc.gridx = 2;
label = new JLabel("Password: ");
add(label, gbc);
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridy = 2;
gbc.gridx = 1;
gbc.gridwidth = 5;
add(new JSeparator(JSeparator.HORIZONTAL), gbc);
}
}
(Had to cut out a few things, please tell me if I'm missing anything)
I've tried anchoring, but I'm still not 100% familiar with GridBagLayout (and the constraints) yet, so I'm not sure if I'm my attempts are in the right direction.
How would I prevent the Username: and Password: labels from moving away from my fields, with still being able to resize?
Also, I want to use GridBagLayout. There is still a lot of things I need to add, and I do not want to use a simple layout due to the fact that I'm going to need flexibility.

Make use of GridBagConstraints#anchor
import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JSeparator;
import javax.swing.JTextField;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
public class LogInTest {
public static void main(String[] args) {
new LogInTest();
}
public LogInTest() {
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 LoginPanel());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
});
}
public class LoginPanel extends JPanel {
private JTextField userfield = new JTextField(10);
private JPasswordField passfield = new JPasswordField(10);
private JButton login = new JButton("Login");
private JButton create = new JButton("Create Account");
public LoginPanel() {
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.anchor = GridBagConstraints.CENTER;
gbc.weightx = 1;
gbc.gridx = 2;
gbc.anchor = GridBagConstraints.EAST;
JLabel label = new JLabel("Username: ");
add(label, gbc);
gbc.anchor = GridBagConstraints.WEST;
gbc.gridx = 3;
gbc.gridwidth = 2;
add(userfield, gbc);
gbc.gridy = 1;
add(passfield, gbc);
gbc.anchor = GridBagConstraints.EAST;
gbc.gridx = 2;
label = new JLabel("Password: ");
add(label, gbc);
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.gridy = 2;
gbc.gridx = 1;
gbc.gridwidth = 5;
add(new JSeparator(JSeparator.HORIZONTAL), gbc);
}
}
}
You may also want to consider making use of compound layouts, that is, separate each area into it's own container and focus on the individual layout needs for each section and then build them all up into a single layout

Java GUI, trying to position radio buttons and check boxes

So I'm trying to create a series of radio buttons and check boxes that are displayed as follows:
Radio Button
Check Box
Radio Button
Check Box
Radio Button
However, I'm still in the learning process for java and I was wondering if anyone could solve this problem. At the moment the buttons and boxes are being displayed in the correct location, however the first radio button ("Times") is not being displayed for some reason. If you could perhaps describe the reason and a possible solution that'd be great.
Thanks
Updated Code:
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
public class Question2 {
public static void main(String[] args) {
MyFrame f = new MyFrame("Font Chooser");
f.init();
}
}
class MyFrame extends JFrame {
MyFrame(String title) {
super(title);
}
private JPanel mainPanel;
private GridBagConstraints gbc = new GridBagConstraints();
private GridBagLayout gbLayout = new GridBagLayout();
void init() {
mainPanel = new JPanel();
mainPanel.setLayout(gbLayout);
mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 20, 10, 20));
this.setContentPane(mainPanel);
gbc.gridx = 0;
gbc.gridy = 1;
JCheckBox cb = new JCheckBox("Bold");
gbLayout.setConstraints(cb, gbc);
mainPanel.add(cb);
gbc.gridy = 3;
gbLayout.setConstraints(cb, gbc);
cb = new JCheckBox("Italic");
mainPanel.add(cb);
gbc.gridx = 1;
gbc.gridy = 0;
JRadioButton rb = new JRadioButton("Times");
gbLayout.setConstraints(rb, gbc);
mainPanel.add(rb, gbc);
gbc.gridy = 2;
gbLayout.setConstraints(rb, gbc);
rb = new JRadioButton("Helvatica");
mainPanel.add(rb, gbc);
gbc.gridy = 4;
gbLayout.setConstraints(rb, gbc);
rb = new JRadioButton("Courier");
mainPanel.add(rb, gbc);
this.pack();
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
}

Here's the problem, you are saying each height is 3 high, but really each cell is 1.
cRadioButton.gridheight = 3; // change this to 1
Here's the full source, and I did make some of the suggested changes from the other answer because at some point you will want to do something different (different action listener implementation for each type of button).
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
public class MyFrame1 extends JFrame {
MyFrame1(String title) {
super(title);
}
private JPanel mainPanel;
private GridBagConstraints gbc = new GridBagConstraints();
private GridBagLayout gbLayout = new GridBagLayout();
void init() {
mainPanel = new JPanel();
mainPanel.setLayout(gbLayout);
mainPanel.setBorder(BorderFactory.createEmptyBorder(10, 20, 10, 20));
this.setContentPane(mainPanel);
gbc.gridx = 0;
gbc.gridy = 1;
JCheckBox italic = new JCheckBox("Italic");
gbLayout.setConstraints(italic, gbc);
mainPanel.add(italic);
JCheckBox bold = new JCheckBox("Bold");
gbc.gridy = 3;
gbLayout.setConstraints(bold, gbc);
mainPanel.add(bold);
gbc.gridx = 1;
gbc.gridy = 0;
JRadioButton times = new JRadioButton("Times");
gbLayout.setConstraints(times, gbc);
mainPanel.add(times, gbc);
gbc.gridy = 2;
JRadioButton helv = new JRadioButton("Helvatica");
gbLayout.setConstraints(helv, gbc);
mainPanel.add(helv, gbc);
gbc.gridy = 4;
JRadioButton courier = new JRadioButton("Courier");
gbLayout.setConstraints(courier, gbc);
mainPanel.add(courier, gbc);
this.pack();
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setVisible(true);
}
public static void main(String[] args) {
MyFrame1 f = new MyFrame1("Font Chooser");
f.init();
}
}

It seems like you keep reassigning the same object, which may be leading to your overlapping. Instead of
JRadioButton rb = new JRadioButton("Times");
//...
newPanel.add(rb);
rb = new JRadioButton("Helvatica");
//...
newPanel.add(rb);
//and so on
try something like
JRadioButton times = new JRadioButton("Times");
JRadioButton helva = new JRadioButton("Helvatica");
//...
newPanel.add(times);
newPanel.add(helva);