File file = new File("path/to/file.txt"); String content = Files.readString(file.toPath()); String content = "This is the content to be written"; Files.write(file.toPath(), content.getBytes()); File dest = new File("path/to/destination/file.txt"); Files.move(file.toPath(), dest.toPath()); File dest = new File("path/to/destination/file.txt"); Files.copy(file.toPath(), dest.toPath()); Configs.setBufferSize(4096); Configs.setCharset("UTF-8"); Configs.setForceLocking(true); Configs.setLockTimeout(5000);