java - 去除重复内容 Java

Question

<分区>

Answer 1

有一个 map ，其中包含按特定键分组的行值。键是行的开头，从您感兴趣的单词开始，比如前 5 个字母。然后将这些线添加到 map 中，如果线比之前找到的线长，则替换它。

try (BufferedReader br = new BufferedReader(new FileReader(filepath))) {

  final Map<String, String> map = new LinkedHashMap<>();

  br.lines().forEach(line -> {
        String message = line.substring(line.lastIndexOf("|") + 1);
        if (message.isEmpty()) {
          return;
        }
        String key = message.split(" ")[0];
        if (map.get(key) == null) {
          map.put(key, line);
        } else if (map.get(key).length() < line.length()) {
          map.remove(key);
          map.put(key, line);
        }
      }
  );

  map.forEach((k, v) -> System.out.println(v));
}

以上代码将为您提供以下输出。

00:00:00,413|03:50:25,600|ISDB|>> FALAM QUE A GENTE COMBINA
00:00:01,135|00:00:01,315|ISDB|PERFEITAMENTE. EU PEDI REVISTAS
00:00:02,759|00:00:03,274|ISDB|BOBAS PARA AMIGOS E AO INV?
00:00:04,357|00:00:05,259|ISDB|DISSO TROUXERAM ISSO A? ELES
00:00:06,858|03:50:32,400|ISDB|COLOCARAM AS FOTOS COMO PAPEL DE
00:00:07,914|00:00:08,997|ISDB|PAREDE, PARECE AT?QUE EU GOSTO