Question

我在文本文件中有以下文字： AAA：A，B，C BBB：d，F

如何创建数组列表，其中每个数组仅包含“：”之后的单词且不包含逗号例如，array1将是：[a b c] array2将是[d f]

到目前为止我有这个代码，但我得到了输出： [aaa：a，b，c] [BBB：d中，f]

// this list will store all the created arrays
      List<String[]> arrays = new ArrayList<String[]>();

      // use a BufferedReader to get the handy readLine() function
      BufferedReader reader = new BufferedReader(new FileReader("scor.txt"));


      for (String line1 = reader.readLine(); line1 != null; 
              line1 = reader.readLine()) {
          String[] floatStrings = line1.split(",");
          String[] textline = new String[floatStrings.length];
          for (int i = 0; i < textline.length; ++i) {
              textline[i] = floatStrings[i];
          }
          arrays.add(textline);
      }
      for (String[] arr : arrays) {
          System.out.println(Arrays.toString(arr));
      }

  }

我稍微更改了代码：

String[] textline = new String[floatStrings.length-1];
          for (int i = 0; i < textline.length; ++i) {
              String[] newTextlineWithoutFirst = Arrays.copyOfRange(floatStrings, 1, floatStrings.length);
              textline[i] = newTextlineWithoutFirst[i];

          }
          arrays.add(textline);
      }
      for (String[] arr : arrays) {
          System.out.println(Arrays.toString(arr));
      }

  }

Answer 1

首先尝试拆分:，然后在[1]上拆分, ...

 for (String line1 = reader.readLine(); line1 != null; line1 = reader.readLine()) {
      String[] splitString = line1.split(":");
      splitString = splitString[1].split(",");
      String[] textline = new String[splitString.length];
      for (int i = 0; i < textline.length; ++i) {
          textline[i] = splitString[i];
      }
      arrays.add(textline);
  }

java使每一行成为一个数组或列表

1 个答案: