Hi Friend,

Try the following code:

import java.sql.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class SwingFrame{
JTextField text;

public static void main(String[] args) throws Exception{
SwingFrame sf=new SwingFrame();
}
public SwingFrame(){
JFrame f = new JFrame("Frame in Java Swing");
f.getContentPane().setLayout(null);
JLabel lbl1 = new JLabel("Course");
text=new JTextField(15);
final JRadioButton c1,c2;
ButtonGroup radioGroup=new ButtonGroup();
c1=new JRadioButton("Semwise Course");
radioGroup.add(c1);
c2=new JRadioButton("Yearwise Course");
radioGroup.add(c2);
JButton button=new JButton("Submit");
text=new JTextField(15);
c1.addActionListener(al);
c2.addActionListener(al);
lbl1.setBounds(50,50,70,30);
button.setBounds(50,80,100,30);
c1.setBounds(110,50,200,30);
c2.setBounds(310,50,200,30);
text.setBounds(110,80,100,30);
text.setVisible(false);

button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
if((c1.isSelected()==false)&&(c2.isSelected()==false)){
JOptionPane.showMessageDialog(null,"Please select radio button");
}
else{
String g=text.getText();

try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:access");
PreparedStatement st=con.prepareStatement("insert into names(ctype) values(?)");
st.setString(1,g);
int i=st.executeUpdate();
JOptionPane.showMessageDialog(null,"Data is successfully inserted into database.");
}
catch(Exception ex){}
}
}
});

f.add(lbl1);
f.add(c1);
f.add(c2);
f.add(button);
f.add(text);
f.setSize(500,500);
f.setVisible(true);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
private ActionListener al = new ActionListener() {
public void actionPerformed(ActionEvent e) {
text.setText(((JRadioButton) e.getSource()).getText());
}
};
}

Thanks