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

I tried this two line to convert string into double

NumberFormat nf = NumberFormat.getInstance()
dounum=nf.parse("24,000.50").toDouble()