How to convert file into an array of bytes ?

Convert File into an array of bytes

FileInputStream fileInputStream = null;

File file = new File("C:\\testing.txt");

byte[] bFile = new byte[(int) file.length()];

try {

  // Convert file into array of bytes

  fileInputStream = new FileInputStream(file);

  fileInputStream.read(bFile);

  fileInputStream.close();

  for (int i = 0; i < bFile.length; i++) {

   System.out.print((char)bFile[i]);

  }

  System.out.println("Done");

}catch(Exception e){

  e.printStackTrace();

}

Convert array of bytes into File

FileInputStream fileInputStream=null;

File file = new File("C:\\testing.txt");

byte[] bFile = new byte[(int) file.length()];

try {

  //convert file into array of bytes

  fileInputStream = new FileInputStream(file);

  fileInputStream.read(bFile);

  fileInputStream.close();

  //convert array of bytes into file

  FileOutputStream fileOuputStream = new FileOutputStream("C:\\testing2.txt");

  fileOuputStream.write(bFile);

  fileOuputStream.close();

  System.out.println("Done");

}catch(Exception e){

  e.printStackTrace();

}