Java 仅填充最后一个 if 语句

Question

我正在为 class 创建患者跟踪系统。我需要读取文本文件中的每一行数组，然后找到约会日期。从那里我将与今天的日期进行比较，如果它 returns 1（等于今天或将来）那么它将填充未来 jtable。如果它 returns -1 它将需要填充以前的约会 table。它目前正在读取每个日期，但我只能让它用一个前一个日期填充一个 table。我已经尝试了一个 switch case 和 if 语句，但我似乎无法弄清楚。欢迎提出任何建议。

        BufferedReader br = new BufferedReader(new FileReader("appointments.txt"));
        Scanner s = new Scanner(new File("appointments.txt"));
        String line = "";
        
        while ((line = br.readLine()) != null) {

            String in = s.nextLine();
            String[] sArray = in.split(",");
            String day = sArray[7].toString();
            SimpleDateFormat parser = new SimpleDateFormat("EEE MMM d HH:mm:ss zzz yyyy");
            Date date = parser.parse(day);
            SimpleDateFormat formatter = new SimpleDateFormat("MM/dd/yyyy");
            String formattedDate = formatter.format(date);

            Date todayDate = new Date();

            Object[][] data = {};
            String[] columnNames = {"Date/Time", "Doctor", "Location", "PreAppointment", "Cancel/Reschedule"};
            dm2 = new DefaultTableModel(data, columnNames);
            table2 = new JTable(dm2);
            
            Object[][] data2 = {};
            String[] columnNames1 = {"Date/Time", "Doctor", "Location", "View Details"};
            dm = new DefaultTableModel(data2, columnNames1);
            table = new JTable(dm);
            for (String word : sArray) {
                if (word.equals(userInput)) {

                    
                    System.out.println(formattedDate);

                    int result = date.compareTo(todayDate);
                    System.out.println("result: " + result);

                    if (result == 0) {
                        dm2.addRow(new Object[]{formattedDate + " " + sArray[8].toString(),
                            sArray[4].toString(),
                            sArray[6].toString() + " " + sArray[12].toString(),
                            "PreAppointment",
                            "Cancel/Reschedule"});
                        

                    } else if (result > 0) {
                        dm2.addRow(new Object[]{formattedDate + " " + sArray[8].toString(),
                            sArray[4].toString(),
                            sArray[6].toString() + " " + sArray[12].toString(),
                            "PreAppointment",
                            "Cancel/Reschedule"});

                    } else if (result < 0) {
                        dm.addRow(new Object[]{formattedDate + " " + sArray[8].toString(),
                            sArray[4].toString(),
                            sArray[6].toString() + " / " + sArray[12].toString(),
                            "Details"});

                    }
                }

            }
        }

Answer 1

为什么要为您阅读的每一行创建新的 JTable 和新的 DefaultTableModel？

代码摘录：

    while ((line = br.readLine()) != null) {

        // [...]

        Object[][] data = {};
        String[] columnNames = {"Date/Time", "Doctor", "Location", "PreAppointment", "Cancel/Reschedule"};
        dm2 = new DefaultTableModel(data, columnNames);
        table2 = new JTable(dm2);
        
        Object[][] data2 = {};
        String[] columnNames1 = {"Date/Time", "Doctor", "Location", "View Details"};
        dm = new DefaultTableModel(data2, columnNames1);
        table = new JTable(dm);

        // [...]

    }

应该是：

    Object[][] data = {};
    String[] columnNames = {"Date/Time", "Doctor", "Location", "PreAppointment", "Cancel/Reschedule"};
    dm2 = new DefaultTableModel(data, columnNames);
    table2 = new JTable(dm2);
        
    Object[][] data2 = {};
    String[] columnNames1 = {"Date/Time", "Doctor", "Location", "View Details"};
    dm = new DefaultTableModel(data2, columnNames1);
    table = new JTable(dm);

    while ((line = br.readLine()) != null) {
        // [...]
    }

Java 仅填充最后一个 if 语句

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