Hi Friend,

Please visit the following link:

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

public class GetDOB{

public static void main(String args[]){
GetDOB get=new GetDOB();
}
public GetDOB(){
JFrame f = new JFrame();
f.getContentPane().setLayout(null);
JComboBox day=new JComboBox();
JComboBox month=new JComboBox();
JComboBox year=new JComboBox();
for(int i=1;i<=31;i++){
day.addItem(i);
}
day.setBounds(10,10,10,10);
for(int j=1;j<=12;j++){
month.addItem(j);
}
for(int k=1900;k<=2010;k++){
year.addItem(k);
}
day.setBounds(50,50,40,20);
month.setBounds(100,50,40,20);
year.setBounds(150,50,60,20);
f.add(day);
f.add(month);
f.add(year);

f.setVisible(true);
f.setSize(300,200);
}
}

Thanks