byte[] to file in Java
FileUtils.writeByteArrayToFile(new File("pathname"), myByteArray)Or, if you insist on making work for yourself...
try (FileOutputStream fos = new FileOutputStream("pathname")) { fos.write(myByteArray); //fos.close(); There is no more need for this line since you had created the instance of "fos" inside the try. And this will automatically close the OutputStream}
Without any libraries:
try (FileOutputStream stream = new FileOutputStream(path)) { stream.write(bytes);}With Google Guava:
Files.write(bytes, new File(path));With Apache Commons:
FileUtils.writeByteArrayToFile(new File(path), bytes);All of these strategies require that you catch an IOException at some point too.
Another solution using java.nio.file:
byte[] bytes = ...;Path path = Paths.get("C:\\myfile.pdf");Files.write(path, bytes);