File Handling issue in JAVA.

[dmjpro]

There r two kinds of streams ... BYTE and CHARACTER streams.

if i write a file in BYTE stream then i later read that file in CHARACTER stream.
any problem is there ???????.... i mean any character lose is there.

plz help.
kind regards.
dmjpro.

[JosAH]

There r two kinds of streams ... BYTE and CHARACTER streams.

if i write a file in BYTE stream then i later read that file in CHARACTER stream.
any problem is there ???????.... i mean any character lose is there.

plz help.
kind regards.
dmjpro.

If/when you write your text using byte streams and you write ASCII characters
only (i.e. only the values 0x00 .. 0x7f) you can safely write bytes and read
chars and vice versa. This all because the first 128 byte values map to identical
values either using Unicode or ASCII.

For all other values >= 0x80 you need an en/decoding to and from Unicode chars.
A natural encoding is UTF/8. You can safely use a byte output stream for
writing UTF/8 encoded characters and read them using an UTF/8 decoder.
The same applies of course for the encoding/decoding methods.

Writing encoded bytes and reading and decoding bytes is a tedious job and
is best left to the Readers, Writers and String constructors which you can
pass the en/decoding method.

kind regards,

Jos

[dmjpro]

thanx for ur reply.

if i try to read an image file or others binary file using character streams then why can't i read the full file????????

actually i have to use byte stream for it.
plz explain.

kind regards.
dmjpro.

[JosAH]

thanx for ur reply.

if i try to read an image file or others binary file using character streams then why can't i read the full file????????

actually i have to use byte stream for it.
plz explain.

kind regards.
dmjpro.

When I read 'binary' file, character streams are a nono. You don't want character
translation to happen on binary data.

kind regards,

Jos

[dmjpro]

Thanx for ur reply.

Now it seems that the picture is more clearer.
So u mean that during Character Streams operation character translation is there.
One more thing frnd..... what do u mean by nono?
ok plz help this point.
If possible if u left anything in the previous discussion .... now fullfill this.
nothing more ....
a lot of things i learnt from u.

thanx thanx many many thanx again.

kind regards.
dmjpro.

[JosAH]

Thanx for ur reply.

Now it seems that the picture is more clearer.
So u mean that during Character Streams operation character translation is there.
One more thing frnd..... what do u mean by nono?
ok plz help this point.
If possible if u left anything in the previous discussion .... now fullfill this.
nothing more ....
a lot of things i learnt from u.

thanx thanx many many thanx again.

kind regards.
dmjpro.

'nono' is a bit of informal language; it means "it's not correct, don't do it", the
informal version reads: "it's a nono". ;-)

kind regards,

Jos