Java：如何将格式为{i，j}，{i，j}，{i，j}的字符串的文本文件转换为二维数组？

Question

我的文本文件如下： {11-11,22}，{33-33,44}，... {88-88,99}

如何在Java中将其转换为2维数组： [[11-11,22]，[33-33,44]，... [88-88,99]]

Answer 1

解决方案：

    String source = "{11-11,22},{33-33,44},{88-88,99}";
    String[] splittedSource = source.split("(?<=\\}),(?=\\{)");
    Pattern p = Pattern.compile("\\{([^,]+),([^\\}]+)");
    String[][] result = new String[splittedSource.length][2];
    for(int i = 0; i < splittedSource.length; i++) {
        Matcher m = p.matcher(splittedSource[i]);
        while(m.find()) {
            result[i][0] = m.group(1);
            result[i][1] = m.group(2);
            System.out.print(m.group(1) + " " + m.group(2) + "\n");
        }
    }
    System.out.println(Arrays.deepToString(result));

说明：

source.split("(?<=\\}),(?=\\{)"); - 在＆{39; ,＆＃39;上分享来源字符前面带有＆＃39; }＆＃39;然后是＆＃39; {＆＃39;

Pattern.compile("\\{([^,]+),([^\\}]+)"); - 括号中的两个捕获群组＆＃34; ()＆＃34;，首先包含＆＃39; ,以外的所有字符＆＃39;直到它到达,＆＃39;，第二个包含＆＃39; ,＆＃39;之后的所有字符。除了＆＃39; }＆＃39;

new String[splittedSource.length][2]; - 此示例中的[3][2]

Matcher m = p.matcher(splittedSource[i]); - 在这里，您要说明您将针对来自splittedSource[]

的每个元素检查给定模式

您从此代码获得的输出：

11-11 22
33-33 44
88-88 99
[[11-11, 22], [33-33, 44], [88-88, 99]]

Answer 2

public static void main(String[] args) {
    Scanner in = new Scanner(Thread.currentThread().getContextClassLoader().
    getResourceAsStream("input/test.txt"));
    String line = in.nextLine();
    String[] tokens = line.split("},");
    String[][] finalArray = new String[tokens.length][2];
    for (int i = 0; i < tokens.length; i++) {
        tokens[i] = tokens[i].replace("{", "");
        tokens[i] = tokens[i].replace("}", "");
        finalArray[i] = tokens[i].split(",");
    }
    for (int i = 0; i < finalArray.length; i++) {
        System.out.println(Arrays.toString(finalArray[i]));
    }
}