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                # Java 8 寫入文件示例 > 原文: [https://howtodoinjava.com/java8/java-8-write-to-file-example/](https://howtodoinjava.com/java8/java-8-write-to-file-example/) Java 8 示例將內容導入文件。 您可以在鏈接的博客文章中找到使用 Java 8 API 讀取文件的[示例。](//howtodoinjava.com/java8/read-file-line-by-line-in-java-8-streams-of-lines-example/) ## 1\. Java 8 使用`BufferedWriter`寫入文件 [`BufferedWriter`](https://docs.oracle.com/javase/8/docs/api/java/io/BufferedWriter.html)用于將文本寫入字符或字節流。 在打印字符之前,它將字符存儲在緩沖區中并成束打印。 如果不進行緩沖,則每次調用`print()`方法都會導致將字符轉換為字節,然后將這些字節立即寫入文件中,這可能會非常低效。 Java 程序*使用 Java 8* API 將內容寫入文件: ```java //Get the file reference Path path = Paths.get("c:/output.txt"); //Use try-with-resource to get auto-closeable writer instance try (BufferedWriter writer = Files.newBufferedWriter(path)) { writer.write("Hello World !!"); } ``` ## 2\. 使用`Files.write()`寫入文件 使用[`Files.write()`](https://docs.oracle.com/javase/8/docs/api/java/nio/file/Files.html#write-java.nio.file.Path-byte:A-java.nio.file.OpenOption...-)方法也是非常干凈的代碼。 ```java String content = "Hello World !!"; Files.write(Paths.get("c:/output.txt"), content.getBytes()); ``` 以上兩種方法都適用于幾乎所有需要用 Java 8 編寫文件的**用例**。 學習愉快!
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