Question

将数组数组打印到表格面临的问题。我的程序将表数据保存为单独的文本文件（每天单独的文件）。现在我想要阅读所有内容并对每个字段求和。我保存的文本文件如下所示：

0   Name    auto    note    note.tot    insurance   ins.tot offer
1   john    51  6   2   21  44  12  
2   peter   32  5   1   36  65  20  
3   smith   12  2   1   45  53  9   
4   mike    5   0   0   17  55  11

我已经设法读取它并将数值保存到数组[] []。但现在我需要将该数组打印到表中。

这是我的文件读取代码：

OK4.addActionListener(new ActionListener() {
    @Override
    public void actionPerformed(ActionEvent e) {
        File f = new File(fileName);
        if (f.exists()) {
            try {
                tableModel = new DefaultTableModel(new Object[] {"#", "Name", "auto", "note", "note.tot", "insurance", "ins.tot", "offer"},0);
                BufferedReader br = new BufferedReader(new FileReader(fileName));
                String line = br.readLine();
                String[] colHeaders = line.split("\\s+");
                tableModel.setColumnIdentifiers(colHeaders);

                while ((line = br.readLine()) != null) {
                    String[] data = line.split("\\s+");
                    tableModel.addRow(data);
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        } else {
            JOptionPane.showMessageDialog(null, "This date was not saved");
        };
        table.setModel(tableModel);
        table.getColumnModel().getColumn(0).setMaxWidth(22);
    }
});

以下是我遇到问题的代码：

OK5.addActionListener(new ActionListener() {
    @Override

    public void actionPerformed(ActionEvent e) {
        int[][] array = null;
        int counter = 0;
        mon = (String) month.getValue();
        for (int i = 1; i < 32; i++) {
            counter = 0;
            fileName= mon + i + ".txt";
            File f = new File(fileName);
            if (f.exists()) {
                try {
                    BufferedReader br = new BufferedReader(new FileReader(fileName));
                    String line = br.readLine();
                    String[] colHeaders = line.split("\\s+");
                    tableModel = new DefaultTableModel(new Object[] {"#", "name", "auto", "note", "note.tot", "insurance", "ins.tot", "offer"}, 0);
                    tableModel.setColumnIdentifiers(colHeaders);

                    while ((line = br.readLine()) != null) {
                        counter = counter + 1;
                        String[] info = line.split("\\s+");
                        for(int j = 2; j < 8; j++) {
                            int num = Integer.parseInt(info[j]);
                            array[j][counter]=array[j][counter] + num;
                        }
                    };
                } catch (Exception ex) {}
            };
        };

        // and here is trying to display it. but it wont work
        tableModel.addRow(array[1][]);
    }
});

错误代码是： int无法转换为vector

但我应该将其转换为矢量吗？可能还有另一种方法可以在表格中显示它吗？

Answer 1

实际上错误代码完全没有意义，因为实际错误只是对矩阵的访问：tableModel.addRow(array[1][]);实际上应该导致第二个括号（[]）的语法错误。要修复语法错误，请将行替换为tableModel.addRow(array[1]);。一般说明：请格式化您的代码，这是完全不可读的。

表的数组数组

1 个答案: