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Reading an int from bytes(binary file) - HELP
getting 0 all the time.....public static int ReadInt(FileInputStream f) { try { int x = 0; int b = f.read(); x += b; x = x << 8; b=f.read(); x += b; x = x << 8; b=f.read(); x += b; x = x << 8; b=f.read(); x += b; } catch (Exception e) { } return x; }
Last edited by helloworld922; December 14th, 2010 at 07:08 PM.
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Re: Reading an int from bytes(binary file) - HELP
For future reference, please flank your code with the [highlight=java][/highlight] tags.
What input are you reading? It might help if you could post a more clear, compilable, concise, example that demonstrates the function(s) working improperly with a defined input.
Re: Reading an int from bytes(binary file) - HELP
public static void main(String[] args){ system.out.println(ReadInt(f));//f is a bmp file } public static int ReadInt(FileInputStream f) { try { int x = 0; int b = f.read(); x += b; x = x << 8; b=f.read(); x += b; x = x << 8; b=f.read(); x += b; x = x << 8; b=f.read(); x += b; } catch (Exception e) { } return x; }
Re: Reading an int from bytes(binary file) - HELP
Better, but no one else has access to the contents of f...try modifying the code so that it demonstrates the behavior with a given series of known bytes (hard coded)
Last edited by copeg; December 14th, 2010 at 02:06 PM.
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