registration

private void btnSignUpActionPerformed(java.awt.event.ActionEvent evt) {
    String nama = txtUserName.getText();
    String pass = txtPassword.getText();
    String pass1 = txtRetypePassword.getText();
    if(pass == null ? pass1 != null : !pass.equals(pass1)){
        JOptionPane.showMessageDialog(rootPane,
        "Password didn't match.",
        "Form Error",
        JOptionPane.WARNING_MESSAGE);

        txtUserName.setText("");
        txtPassword.setText("");
        txtRetypePassword.setText("");
    }else{
        try {
            DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd");
            Date date = new Date();
            String tgl = dateFormat.format(date);

            int tambahUser = src.id.lib.insertData.insertUser(nama, pass, tgl);

            if(tambahUser == 1){
                JOptionPane.showMessageDialog(rootPane,
                "Creating user success.");
            }
            new Login().show();
            this.dispose();

        } catch (SQLException ex) {
            Logger.getLogger(Mahasiswa.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}
private void btnResetActionPerformed(java.awt.event.ActionEvent evt) {
    txtUserName.setText("");
    txtPassword.setText("");
    txtRetypePassword.setText("");
}
public static void main(String args[]) throws UnsupportedLookAndFeelException{
    UIManager.setLookAndFeel(new AcrylLookAndFeel());
    java.awt.EventQueue.invokeLater(new Runnable() {
        public void run() {
            new Registration().setVisible(true);
        }
    });
}