Question

我的代码会读取和写入文件，但它不是每个值的新行，而是在一行中打印每个值。

// 2 points
static void Q1(String inputFilename, String outputFilename) {
    // You are given a csv file (inputFilename) with all the data on a single line. Separate the
    // values by commas and write each value on a separate line in a new file (outputFilename)

        String data = "";
        try {
            for(String s :Files.readAllLines(Paths.get(inputFilename))){
                data = data + s;
            }
            Files.write(Paths.get(outputFilename), data.getBytes());
        } catch (IOException e) {

            e.printStackTrace();
        }
}

因此，评分者说：

Incorrect on input: [data/oneLine0.csv, output0.txt]
Expected output : overwrought plastic bomb
wrapped litter basket
obstetric matter of law
diabetic stretching
spatial marathi
continental prescott
reproductive john henry o'hara
hollow beta blocker
stereotyped national aeronautics and space administration
irremediable st. olaf
brunet fibrosis
embarrassed dwarf elm
superficial harrier
disparaging whetstone
consecrate agony
impacted lampoon
nefarious textile
some other organisation
Your output     : overwrought plastic bomb,wrapped litter basket,obstetric matter of law,diabetic stretching,spatial marathi,continental prescott,reproductive john henry o'hara,hollow beta blocker,stereotyped national aeronautics and space administration,irremediable st. olaf,brunet fibrosis,embarrassed dwarf elm,superficial harrier,disparaging whetstone,consecrate agony,impacted lampoon,nefarious textile,some other organisation

Answer 1

首先，您需要从CSV文件中删除逗号。我建议使用
s = s.replace(",","");此外，您必须在每个字符串后附加\n，以使其显示在新行中。因此，您应该添加s += "\n";这会产生代码：

// 2 points
static void Q1(String inputFilename, String outputFilename) {
// You are given a csv file (inputFilename) with all the data on a single line. Separate the
// values by commas and write each value on a separate line in a new file (outputFilename)

    String data = "";
    try {
        for(String s :Files.readAllLines(Paths.get(inputFilename))){
            s.replace(",","");
            s += "\n";
            data = data + s;
        }
        Files.write(Paths.get(outputFilename), data.getBytes());
    } catch (IOException e) {

        e.printStackTrace();
    }
}

Answer 2

alper$ export AWS_PROFILE="pca"

如何将每个值添加到单独的行？

2 个答案: