if(conatctnumber == "") // error how to check if contact number == number.
        {
            return true;
        }
        return true;
    }
    return false;
}
public void calltoOpenHome() {
    Home obj = new Home();
}
public JFrame f;
public Register_page()
{
    f=new JFrame();
    JLabel jl=new JLabel(" CREATE YOUR PROFILE ");
    jl.setBounds(130,40,400,100);
    jl.setFont(new java.awt.Font("Tahoma",1,25));
    jl.setForeground(new java.awt.Color(21,21,190));
    final JTextField tf1=new JTextField();//name
    tf1.setBounds(130,170,150,20);
   final JTextField tf4=new JTextField();//user name
    tf4.setBounds(130,260,150,20);
    final JTextField tf2=new JTextField();//contact
    tf2.setBounds(380,210,150,20);
  final  JTextField tf5=new JTextField();//password
    tf5.setBounds(380,300,150,20);
final    JTextField tf3=new JTextField();//email
    tf3.setBounds(130,350,150,20);
    JLabel jl1=new JLabel("Name: ");
    jl1.setBounds(80,168,150,20);
     JLabel jl2=new JLabel("Mail ID: ");
    jl2.setBounds(80,350,150,20);
     JLabel jl3=new JLabel("Contact: ");
    jl3.setBounds(78,258,150,20);
     JLabel jl4=new JLabel("User Name ");
    jl4.setBounds(415,188,150,20);
     JLabel jl5=new JLabel("Password ");
    jl5.setBounds(419,280,150,20);
    JButton jb=new JButton("REGISTER");
    jb.setBounds(225,402,100,50);

     jb.addActionListener(new ActionListener()
     {
         public void actionPerformed(ActionEvent e)
         {

             String name = tf1.getText();
             String username = tf4.getText();
             String conatctnumber = tf2.getText();
             String password = tf5.getText();
             String email = tf3.getText();
             calltoOpenHome(name,username,conatctnumber,password,email);
         }

     });
    f.add(jb);
    f.add(jl);
    f.add(tf1);
    f.add(tf2);
    f.add(tf3);
    f.add(tf4);
    f.add(tf5);
    f.add(jl1);
    f.add(jl2);
    f.add(jl3);
    f.add(jl4);
    f.add(jl5);
    f.setSize(600,500);
    f.setLayout(null);
    f.setVisible(true);
    f.setBackground(Color.GRAY);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}