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mohammadmehdi khajehzadeh mohkhz2001

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package chapter4;
import javax.swing.JOptionPane;
import javax.swing.JButton;
public class exersice11 {
public static void main(String[] args) {
// TODO Auto-generated method stub
// input email1
String email1=JOptionPane.showInputDialog("plz enter your email addres");
// check email1