Byte[] -- char[]

Hi,
Without casting each member of the array, can we cast byte[] --> char[] ??
thank you.

Ok, common misconception. Just because you may be
able to write
char[] = byte[].toString();
doesn't mean its any faster.But you can't write that :P Even if you call toCharArray() after you get the String, it's going to give you the hashcode, not a conversion.

Similar Messages

Double byte chars in URI

Is it possible to send double byte chars through a URI? Is this possible to send from a servlet to a client browser then the client browser will just forward it on back to a server. What would have to happen on the server and client side for this to happen?
I guess I have basic non-understanding on how encoding works through http, using a client browser and also sending a response to a servlet container. Can anyone tell me how this process works? What are the default encodings, what is configurable on the client side or server side, etc.? Thanks.

I believe the rule is that you first have to encode the string into UTF-8 bytes, then apply the URL-encoding rules to that array of bytes. At least, that's how I understand the most recent rules for HTTP. But it's likely that most browsers don't follow this rule properly, so be prepared for a rough ride if you try this.

FM to convert double byte chars

Hi All,
Is there anyone know what are the function module to convert double-byte chars? Thanks.

Seems like Blue Sky is not clear
You want to convert what into what?
Whats the purpose of this requirement, kindly give more details.
Regards
Karthik D

Convert/Represent 1 byte char in 2 bytes

Hello All,
I would like to convert/represent the 1 byte char to 2 byte.
for example the "Test ��" is a 9 byte string if i use getBytes()
the byte array length is 7 bytes but if i use getBytes("UTF8")
i'm getting 9 bytes but it's not printing "��"
Now i want to represent them in a 2 byte. How do i do that?
Regards
G S Sundaram

getBytes("UTF16-BE") or getBytes("UTF16-LE"). What is �� supposed to be here?

Difference between BYTE & CHAR

hi all,
In Oracle, As per below syntax, what is the difference between BYTE & CHAR used as datatype size for NAME column:
CREATE TABLE CLIENT
NAME VARCHAR2(11 BYTE),
ID_CLIENT NUMBER
and
CREATE TABLE CLIENT
NAME VARCHAR2(11 CHAR), -- or even VARCHAR2(11)
ID_CLIENT NUMBER
rgds,
pc

First of - do not use reserved words for columns (NAME).
If the database character set is UTF-8, which I believe is the default in recent version of Oracle. In this case, some characters take more than 1 byte to store in the database.
If you define the field as VARCHAR2(11 BYTE), Oracle will allocate 11 bytes for storage, but you may not actually be able to store 11 characters in the field, because some of them take more than one byte to store, e.g. non-English characters.
By defining the field as VARCHAR2(11 CHAR) you tell Oracle to allocate enough space to store 11 characters, no matter how many bytes it takes to store each one. I believe that in Oracle 10g, 3 bytes per character were used.
regards,
Robert.

DATA_LENGTH in all_tab_columns in BYTE/CHAR???

Hi
in the Oracle 11gR2 or 10gR2 documentation you find the following description of ALL_TAB_COLUMNS.DATA_LENGTH.
DATA_LENGTH NUMBER NOT NULL Length of the column (*in bytes*)But what about VARCHAR2 fields which have been created with
NLS_LENGTH_SEMANTICS='CHAR'My observation is, that in 10g ALL_TAB_COLUMNS.DATA_LENGTH shows the length in what ever mode, you have created the table. So, if I have created a VARCHAR2 field as VARCHAR2(4 CHAR), then ALL_TAB_COLUMNS.DATA_LENGTH will show 4. In 11g however the field shows really the length in bytes. So I observed data_length=16 for a field which had been defined as VARCHAR2(4 CHAR) on a 11gR2 database with NLS_CHARACTERSET= "AL32UTF8".
Is there any contrary observation or experience?

Thanks guys,
you are right my 10g DB used to have
NLS_CHARACTERSET WE8ISO8859P1which makes everything very clear.
Very helpful is the field CHAR_LENGTH and CHAR_USED which indeed contain the information I need.
Thanks.

Bytes/chars stream problems

hi to all...
this is my first message in this good forum...
I've this question: is it possible to create on a single socket 2 streams?exactly:
BufferedReader in = new BufferedReader(new InputStreamReader(sClient.getInputStream()));
and
BufferedInputStream bufferedInputStream = new BufferedInputStream(sClient.getInputStream());
The first for strings (commands) , the other for byte streams (file transfer).
The error is that if a I try to print the line of the first buffer, incomprensibles chars are printed on my shell, probably because the line printed is not teh string requested but the byte stream.....so....2 getInputStream is not possibl on a single socket???
To solve???only another socket??
please help me..
Thank you
euronymous

the point is that during a file transfer, the server
must be able to send messages to clients...Almost: the point is that both the server and the client have to agree on
the protocol to be used by both parties. Suppose a server wants to send
a file to a client. The server could send the name of the file (a String)
followed by a number (the block length) and a block of data with that
length. This block length/data tuple could be sent more than once.
If the block length becomes equal to zero it means: nothing to send
anymore, the client has the entire file content.
The block length could be an int while the block itself could be a sequence
of bytes; both very convenient information for the client to have ...
A bit more complicated scenario: the client could send a confirmation
back to the server after every block; or a negative confirmation telling
the server to stop sending ...
But first of all you have to get your protocol defined.
thank joisYou're welcome,
kind regards,
Jos

Byte[] char[] builders?

I have two questions:
1.) how much precision am I losing when I cast a byte to a char?
2.) is there a class that I can use to build one big byte[] out of several smaller byte[] of arbitrary length?
thanks in advance,
Hans

hansbig wrote:
kajbj wrote:
2.) is there a class that I can use to build one big byte[] out of several smaller byte[] of arbitrary length?Might not be the best way, but you can create a ByteArrayOutputStream and write the byte arrays to that one, and call toByteArray() when you are done.
Kajthanks, i'll give that a try. :)Another option that might be harder to implement but that is more common is that you create an array that has the same size as the total size of all smaller byte arrays, and then uses System.arraycopy to copy the smaller arrays into the larger one.
Kaj

DOUBLE BYTE chars

Hi All,
While uploading some multi-lingual text from a application
server file, is there any way to treat DOUBLE BYTE characters
as DOUBLE BYTE ?
Currently, it is treated as SINGLE BYTE character.
With Thanks and Regards,
R.Nagarajan.
We can -

No response.

Support for Double Byte Chars in Table Names

Can you please tell me if double byte characters are supported in table names? Thanks.

Assuming you are using the same double byte character set as your db character set, then the answer is yes. Check out this table in the 9i Database Globalization Support Guide, for more info.
http://technet.oracle.com/docs/products/oracle9i/doc_library/release2/server.920/a96529/ch2.htm#103678
Schema objects refer to table/index/view names etc.

Form English Char ( Single Byte ) TO Double Byte ( Japanese Char )

Hello EveryOne !!!!
I need Help !!
I am new to Java ,.... I got assignment where i need to Check the String , if that string Contains Any Non Japanse Character ( a~z , A~Z , 0 -9 ) then this should be replaced with Double Byte ( Japanese Char )...
I am using Java 1.2 ..
Please guide me ...
thanks and regards
Maruti Chavan

hello ..
as you all asked Detail requirement here i an pasting C code where 'a' is passed as input character ..after process it is giving me Double Byte Japanese "A" .. i want this to be Done ..using this i am able to Convert APLHA-Numeric from singale byte to Doubel Byte ( Japanse ) ...
Same program i want to Java ... so pleas guide me ..
#include <stdio.h>
int main( int argc, char *argv[] )
char c[2];
char d[3];
strcpy( c, "a" ); // a is input char
d[0] = 0xa3;
d[1] = c[0] + 0x80;
printf( ":%s:\n", c ); // Orginal Single byte char
printf( ":%s:\n", d ); // Converted Double Byte ..
please ..
thax and regards
Maruti Chavan

How to show an image in JSP given the bytes[] of the photo?

Hi all,
I stored a user's picture in the db as text. For this I simply converted the JPG to bytes[] and from bytes to string: Base64.encode(bytes)
Now I wish to do the reverse - to 'output' the image on the screen. So given the bytes[] of the image with
byte[] bytesDB = Base64.decode(userPhotoStr); //userPhotoStr is something like this: /9j/4AAQSkZJRgA...Question: How can I show the image in the JSP page embedded in the page not as download?
I'm using struts with JSP pages.
Thank you!!!!

Images in HTML are to be displayed using <img> element. All what an <img> element can take as image is an URL pointing to the image in question.
If the image is dynamic, then you can just let that URL point to some Servlet which takes some request parameter or reads the path info, reads/gets the image as byte array or (much more efficient) as inputstream and writes it to the outputstream of the response.
You may get some ideas out of this: [http://balusc.blogspot.com/2007/04/imageservlet.html].
By the way, massaging the byte array from/to a String is a terribly bad idea. Just store bytes as computer readable bytes, not as human readable characters, this makes completely no sense. Characters on its turn have to be converted to bytes again after all, but now you've let the DB do the work. All with all a performance pain. Bytes > Chars > Bytes > Chars > Bytes instead of just Byes > Bytes. In database you normally use BLOB, BINARY or equivalent for this in combination with JDBC's PreparedStatement#setBinaryStream() and ResultSet#getBinaryStream().

Conversion from Char to Packed Number

Hi,
How do we convert a 18 byte char field(Which contains all numerics) in to a 8 byte field ?
Regards,
Hari

Hi.,,
what is your actual requirement ??
if u want to move a character variable which contains all numerics into a P type field u can directly move it !!
data w_char(18) type c value '1234567'.
data w_p type p decimals 2.
move w_char to w_p.
write w_p.
If you want to hold large numbers then increase the size of P type variable..
data w_p(10) type p decimals 2.
reward if it helps u..
sai ramesh.

How to handle all UTF-8 char set in BizTalk?

Can any one let me know how to handle UTF-8 char set in BizTalk.
My receive file can contain any character set like ÿÑÜÜŒöäåüÖÄÅÜ . I have to support all char set under the umbrella of UTF-8.
But when i am trying to convert flat file data to xml its converting special character to ??????????.
Thanks,

That won't work because the content has been modified simply by posting it.
Let's start form the beginning:
No component will ever replace any character with '?', that just doesn't happen.
Some programs will display '?' if the byte value does not fall within the current character set, UTF-x, ANSI, ANSI+Code Page, etc.
You need to open the file with an advanced text editor such as Notepad++.
Please tell us exactly where you are seeing the '?'.
The Code Page is not an encoding itself, it is a special way of interpreting ANSI, single byte char values 0-254, in a way that supports characters beyond the traditional Extended Character Set.
You need to be absolutely sure what encoding and possibly Code Page the source app is sending. Notepad++ is pretty good at sniffing this out or just ask the sender. If you determine that it's really UTF-8, you must leave
the Code Page property blank.

Help with Bytes

Hi
Can anyone help me with the following example?
I have a 4 byte String s when displayed in binary =
00 30 00 00.
I would like to change the 30 which is equal to 48
to 79 which is equal to 121.
thanks

thank you for your help. but what should the value of
charset be?Most probably the encoding used for the original String. Since you're working with single-byte chars (don't you?), it seems "US-ASCII"'d be appropriate.
You may also ignore the charset and use the local one (use the no-arg getBytes()).

Byte[] -- char[]

Similar Messages

Maybe you are looking for