• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Bear Bibeault
  • Jeanne Boyarsky
  • Tim Cooke
Sheriffs:
  • Knute Snortum
  • Junilu Lacar
  • Devaka Cooray
Saloon Keepers:
  • Ganesh Patekar
  • Tim Moores
  • Carey Brown
  • Stephan van Hulst
  • salvin francis
Bartenders:
  • Ron McLeod
  • Frits Walraven
  • Pete Letkeman

Get file and getBytes()  RSS feed

 
Ranch Hand
Posts: 178
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,

I want to read the test.txt file as byte, not int. But, it cannot cast int c to byte [] d. Or, I do not need to use int c to read the whole file?
Pls advise.
 
Ranch Hand
Posts: 572
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
May be following code help you
byte[] b;
try{
File f = new File("c:/abc.txt");
int length = (int)f.length();
b = new byte[length];
FileInputStream fin = new FileInputStream(f);
DataInputStream din = new DataInputStream(fin);
din.read(b);
}catch(Exception ex){}
 
Andrew Parker
Ranch Hand
Posts: 178
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi,
I tried
The FileInputStream:

The EncryptClass constructor:

The FileOutputStream:

My questions are
1. how to make is.read(bytes) to be a byte array?
2. can I write byte [] b directly to os?
Thanks for your great help.
 
author and iconoclast
Sheriff
Posts: 24220
40
Chrome Eclipse IDE Mac OS X
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Just don't try do it in one line of code:
EncryptClass o = new EncryptClass(is.read(bytes));
You need to use two lines:
is.read(bytes);
EncryptClass o = new EncryptClass(bytes));
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!