Java 學習記錄84 — I/O BufferedReader — 3/7

承 83 — FileReader and Closeable

Locations.java

//         read directions.txt  - version3
try {
            scanner = new Scanner(new BufferedReader(new FileReader("src/introduceIo/directions.txt")));
            scanner.useDelimiter(",");
            while (scanner.hasNextLine()) {
                String input = scanner.nextLine();
                String[] data = input.split(",");
                int loc = Integer.parseInt(data[0]);
                String direction = data[1];
                int destination = Integer.parseInt(data[2]);
                Location location = locations.get(loc);
                location.addExit(direction, destination);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (scanner != null) {
                scanner.close();
            }
        }

第三種寫法

這個寫法就簡單多了

因為我們文檔規律很簡單

這樣寫就不像上面兩種方法那樣麻煩跟難寫

補充：

Scanner vs. BufferedReader

3 ways for reading user’s input from console in Java

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