Java - Write to file

Java

InputStream inStream = new FileInputStream(new File("...."));

byte[] buffer = new byte[inStream.available()];

inStream.read(buffer);

File outFile = new File(".........");

OutputStream outStream = new FileOutputStream(outFile );

outStream.write(buffer);

Java with buffer

InputStream inStream = new FileInputStream(new File("...."));

byte[] buffer = new byte[inStream.available()];

inStream.read(buffer);

File outFile = new File(".........");

OutputStream outStream = new FileOutputStream(outFile );




byte[] buffer = new byte[1024];

int bytesRead;

while ((bytesRead = inStream.read(buffer)) != -1) {

   outStream.write(buffer, 0, bytesRead);

}

IOUtils.closeQuietly(initialStream);

IOUtils.closeQuietly(outStream);
 

Java 8 - the easy way

InputStream inStream = new FileInputStream(new File("...."));

byte[] buffer = new byte[inStream.available()];

inStream.read(buffer);

File outFile = new File(".........");

java.nio.file.Files.copy(inStream, outFile.toPath(), StandardCopyOption.REPLACE_EXISTING);

Apache Commons

InputStream inStream = new FileInputStream(new File("...."));

byte[] buffer = new byte[inStream.available()];

inStream.read(buffer);

File outFile = new File(".........");

FileUtils.copyInputStreamToFile(inStream, outFile );