从测试文件填充DefaultTableModel

Question

我有这个文本文件：

A
B
3.00

A
B
3.00

我的观点是：

我希望将每一行与每列相匹配(first_row-first_column,SEND_ROW-SEND_COLUMN等）我哪里出错了？我的代码如下：

    BufferedReader infile = new BufferedReader(reader);
        String line = "";
        int counter = 0;
        String title = "";
        String author = "";
        String price = "";
        try {
            while ((line  = infile.readLine()) != null) {
                ++counter;

                if (counter == 1) {
                    title = line;
                } else if (counter == 2) {
                    author = line;
                } else if (counter == 3) {
                    price = line;
                    SimpleBook sb = new SimpleBook(title, author, price);
                    bookList.add(sb);
                    counter = 0;
                }
            }
        } catch (IOException ex) {
            Logger.getLogger(SimpleBookList.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

}

Answer 1

您可以这样做，因为在您的输入文件中有一个空行。

BufferedReader infile = new BufferedReader(reader);
    String line = "";
    int counter = 0;
    String title = "";
    String author = "";
    String price = "";
    try {
        while ((line  = infile.readLine()) != null) {
            if(line.isEmpty())
                  continue;

            ++counter;

            if (counter == 1) {
                title = line;
            } else if (counter == 2) {
                author = line;
            } else if (counter == 3) {
                price = line;
                SimpleBook sb = new SimpleBook(title, author, price);
                bookList.add(sb);
                counter = 0;
            }
        }
    } catch (IOException ex) {
        Logger.getLogger(SimpleBookList.class.getName()).log(Level.SEVERE, null, ex);
    }