ap

public void loadCurrencyRates() {
            // Convert String Array to List to use .contains
            List<String> currencyNamesList = Arrays.asList(currencyNames);
            List<String> symbolsList = Arrays.asList(symbols);

            String currentLine;
            BufferedReader in = null;
            try {
                in = new BufferedReader(new InputStreamReader(new FileInputStream("./" + fileName), "UTF8"));
                while ((currentLine = in.readLine()) != null) {
                    //currentLine = currentLine.replace("\uFEFF", "");
                    String[] arrOfStr = currentLine.split(", ");//Splits file content by , and sends them to arrays.
                    System.out.println(arrOfStr[0]);//Array for Currency names
                    System.out.println(arrOfStr[1]);//Array for Currency rates
                    System.out.println(arrOfStr[2]);//Array for Currency symbol
                    if (currencyNamesList.contains(arrOfStr[0]) && symbolsList.contains(arrOfStr[2])) {
                        try {
                            double newRate = Double.parseDouble(arrOfStr[1]);//Changes Currency Rates to that in array index [1]
                            System.out.println("valid name and symbol");
                            int indexOfName = currencyNamesList.indexOf(arrOfStr[0]);
                            if (symbols[indexOfName].equals(arrOfStr[2])) { //Checks if currency name and symbol match
                                System.out.println("currency name and symbol match");

                                switch(indexOfName) {
                                    case 0: eurRate = newRate;
                                    break;
                                    case 1: usdRate = newRate;
                                    break;
                                    case 2: audRate = newRate;
                                    break;
                                    case 3: cadRate = newRate;
                                    break;
                                    case 4: iskRate = newRate;
                                    break;
                                    case 5: aedRate = newRate;
                                    break;
                                    case 6: zarRate = newRate;
                                    break;
                                    case 7: thbRate = newRate;
                                    break;

                                }

                                System.out.println(arrOfStr[0] + " rate changed to: " + arrOfStr[1]);//Prints original currency rate and new currency rate
                                JOptionPane.showMessageDialog(new JFrame(), "Currency rates loaded from: " + fileName, "Loaded Currency",
                        JOptionPane.INFORMATION_MESSAGE);
                            }
                        } catch(Exception e) {
                            System.out.println("Invalid Line cant parse");//Error Handling
                        }
                    }
                    else {
                        System.out.println("Invalid Line no match");//Error Handling
                    }
                }
            }
            catch (Exception e) {
                System.out.println("");//Error Handling

            } finally {
                try {
                if (in != null)
                in.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
            }
        }