Hello Sir, I have a dropdown menu and i have to show textfields and submit button on the basis of the selection of option from the dropdown menu .acc. to my requirement i have to show the textfields and submit button in the same panel of the jframe window .

Below is my code which is displaying textfields in the other jframe. KIndly help me sir

Plz sir have a look of my code to sort out problem.

will always be gratefull.Thank you Sir.

  
  import javax.swing.*;
  import java.awt.*;
  import java.awt.event.*;
  import javax.xml.soap.Detail;

public class ComboBox{
public static void main(String[] args) {
 ComboBox b=new ComboBox();
  }
  public ComboBox(){
  final JComboBox combo;
  JTextField txt;
  JButton b=new JButton("GO");
  String course[] = {"Detail Report","Summary Report"};
  final JFrame frame = new JFrame("Creating a JComboBox Component");
  final JPanel panel = new JPanel();
  combo = new JComboBox(course);
  combo.setBackground(Color.white);
  combo.setForeground(Color.red);

  panel.add(combo);
  panel.add(b);
  frame.add(panel);

  combo.addItemListener(new ItemListener(){
    public void itemStateChanged(ItemEvent ie){
    String str = (String)combo.getSelectedItem();
    }
  });
   combo.setBounds(10,10,100,20);
   b.setBounds(120,40,80,20);
   panel.setBounds(10,70,480,170);
   b.addActionListener(new ActionListener() {

   public void actionPerformed(ActionEvent e) {
            JPanel p=new JPanel();
               JFrame f=new JFrame();
  f.setDefaultCloseOperation(JFrame.EXITONCLOSE);
  f.setSize(450,400);
  f.setLocationRelativeTo(null);
  f.setVisible(true); 
            String str3 = (String)combo.getSelectedItem();
                 String str2="Detail Report";
                 System.out.println(str3);
                 if(str3.equals(str2)){
                 JLabel l1=new JLabel("Date1:");
                 JTextField txt1=new JTextField(12);

           p.add(l1);
             p.add(txt1);  
             f.add(p);
            f.setVisible(true);
            }


            else{
               JLabel l2=new JLabel("Date2:");
             JTextField txt2=new JTextField(12);
                 p.add(l2);
             p.add(txt2);  
             f.add(p);
                f.setVisible(true);

            }  


        }
});
  frame.setDefaultCloseOperation(JFrame.EXITONCLOSE);
  frame.setSize(450,400);
  frame.setLocationRelativeTo(null);
  frame.setVisible(true);
  }
}