Hi Friend,

Please try the following code. I hope that this will help you a lot.

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

public class ThousandIndicator{
public static void main(String[] args){
JFrame frame = new JFrame("Thousand Indicator");
JButton button = new JButton("Enter number");
button.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
String s = JOptionPane.showInputDialog(null, "Enter some number : ", "", 1);
if(s.length() < 4){
JOptionPane.showMessageDialog(null, "You have entered a " + s.length() + " digit number.", "Thousand Indicator", 1);
} else {
int length=s.length();
int cut = length-3;
String start=s.substring(0,cut);
String after=s.substring(cut);
JOptionPane.showMessageDialog(null, "Resulted Number is "+start+","+after+"","Thousand Indicator", 1);
}
}
});
JPanel panel = new JPanel();
panel.add(button);
frame.add(panel);
frame.setSize(400, 400);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}

Thanks
RoseIndia Team