This is to achieve the effect of the

Consult everybody: something wrong with the big code

 public class TestDemo {
Public static void main (String [] args) {
JFrame frame=new JFrame (" my forms "); 
Frame. SetDefaultCloseOperation (JFrame. EXIT_ON_CLOSE); 
Frame. SetSize (640, 640); 
JPanel panel=new JPanel (); 
A panel. The setSize (640640); 
Frame. SetResizable (false); 
Frame. SetLocationRelativeTo (null); 
GridBagLayout GridBagLayout=new GridBagLayout (); 
The panel. SetLayout (gridBagLayout); 
GridBagConstraints constraints=new GridBagConstraints (); 
Constraints. The fill=GridBagConstraints. BOTH; 
Constraints. Gridx=1; 
Constraints. Gridy=2; 
Constraints. Gridwidth=3; 
Constraints. Gridheight=3; 
JTextArea textArea=new JTextArea (" text area "); 
GridBagLayout. SetConstraints (textArea, constraints); 
Constraints. Gridx=4; 
Constraints. Gridy=2; 
Constraints. Gridwidth=1; 
Constraints. Gridheight=1; 
JButton buttonConfirm=new JButton (" ok "); 
GridBagLayout. SetConstraints (buttonConfirm, constraints); 
Constraints. Gridx=5; 
Constraints. Gridy=2; 
Constraints. Gridwidth=2; 
Constraints. Gridheight=1; 
JButton buttonCancel=new JButton (" cancel "); 
GridBagLayout. SetConstraints (buttonCancel, constraints); 
ButtonGroup group=new ButtonGroup (); 
Constraints. Gridx=4; 
Constraints. Gridy=3; 
Constraints. Gridwidth=1; 
Constraints. Gridheight=1; 
JRadioButton buttonBold=new JRadioButton (" bold "); 
GridBagLayout. SetConstraints (buttonBold, constraints); 
Constraints. Gridx=5; 
Constraints. Gridy=3; 
Constraints. Gridwidth=2; 
Constraints. Gridheight=1; 
JRadioButton buttonItalic=new JRadioButton (" italics "); 
GridBagLayout. SetConstraints (buttonItalic, constraints); 
Constraints. Gridx=4; 
Constraints. Gridy=4; 
Constraints. Gridwidth=2; 
Constraints. Gridheight=1; 
JRadioButton buttonCommon=new JRadioButton (" conventional "); 
GridBagLayout. SetConstraints (buttonCommon, constraints); 
Constraints. Gridx=5; 
Constraints. Gridy=4; 
Constraints. Gridwidth=2; 
Constraints. Gridheight=1; 
JRadioButton buttonBoldItalic=new JRadioButton ("/font "); 
GridBagLayout. SetConstraints (buttonBoldItalic, constraints); 
Constraints. Gridx=1; 
Constraints. Gridy=5; 
Constraints. Gridwidth=6; 
Constraints. Gridheight=1; 
JTextField textField=new JTextField (" enter your name "); 
GridBagLayout. SetConstraints (textField, constraints); 
Group. The add (buttonBold); 
Group. The add (buttonItalic); 
Group. The add (buttonCommon); 
Group. The add (buttonBoldItalic); 
A panel. The add (textArea); 
A panel. The add (buttonConfirm); 
A panel. The add (buttonCancel); 
A panel. The add (buttonBold); 
A panel. The add (buttonItalic); 
A panel. The add (buttonCommon); 
A panel. The add (buttonBoldItalic); 
A panel. The add (textField); 
Frame. The add (panel); 
Frame. SetVisible (true); 
} 
}