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我想用相同的尝试资源来读取和写入非常大的文件。请尝试使用资源来处理其正文中抛出的异常。使用试用资源读取和写入文件
try (Stream<String> stream = Files.lines(Paths.get("source.txt"), Charset.defaultCharset());
BufferedWriter writer = Files.newBufferedWriter(Paths.get("dest.txt"))) {
stream.map(String::trim).map(String::toUpperCase).forEach(writer::write);
} catch (Exception e) {
e.printStackTrace();
}
感谢@mtj,它的工作原理,但对可读性不好 – ravthiru