java.lang.NumberFormatException: For input string: “20,475.00”

Question

i am trying to get the running balance of my system. To do it, i get the sum of all numbers in the jtable from column AMOUNT and subtract the sum to the value inside the txt

Answer 1

Use NumberFormat class instead of Float.parseFloat. It will allow you to specify a format for parsing a formatted number such as 20,475.00.

Example:

NumberFormat nf = NumberFormat.getInstance();
// provided your Locale information matches your number format
sum += nf.parse(tableLedger.getModel().getValueAt(i, 2).toString());