How can i find an specific code in jd-GUI using jd-core ?

[lmfgkfd]

in all the .jar, .class, .java and .form java programmed files that are opened with jd-GUI a code like :

void Agregar () {

String dni-txtDni.getText();

String nom-txtNom.getText();

if (dni.equals("") || nom.equals("")) {

JOptionPane.showMessageDialog(null, "Cajas estan Vacias...!!!");

}else{

String sql="insert into persona (DNI, Nombres) values ('"+dni+"', '"+nom+"')"; try {

cn=con.getConnection();

}

I

st=cn.createStatement ();

st.executeUpdate (sql);

} catch (Exception e) {

}