String mess2 = "Please enter radius in metres\n";
rad = Db.readDouble(mess1+mess2);
}
this.vec.add(new Double(rad));
int charg = 0;
charg = ir.charge(ion);
if(charg==0){
String mess1 = ion + " charge is not in the IonicRadii list\n";
String mess2 = "Please enter charge as, e.g +2";
charg = Db.readInt(mess1+mess2);
}