with the above code i get the error
FrontEnd/front.java [2,490:1] inconvertible types
found : java.lang.String
required: java.lang.Float
saleSalesCheckoutTable.setValueAt((salesQuantityTextField.getText() * (Float)salesQuantityTextField.getText()),0,4) ;
Which pretty much points out that my types are mismathcing, but i've tried lots of different combinations and don't seem to be able to extract anything other than a
string out of the cell values.