How do I use a package?

I know that instead of writing "import" you write "package."
But how do you make a package?
Do you just create a folder, put relevant .class files in there, and then type "package <folder path>" on your Java program?
Is that how it works? If someone could clarify that for me I'd appreciate it?

Answered in the duplicate thread.

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AC

Hi Matheus,
I think you misunderstand. Pierre replied here:
http://forums.adobe.com/message/4591321#4591321
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Hi,
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How do you use these packages?

I have the files cldc_1_0_src_palm_overlay.zip and cldc_1_0_src_winsol.zip, which I was told is required for running this code:
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import javax.microedition.io.*;
import java.io.*;
import com.sun.kjava.*;
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But i am unsure of how to use them. Do I place the files in a folder somewhere?
Thanks in Advance

But i am unsure of how to use them. Do I place the
files in a folder somewhere? Where else would you keep them? :)
Wherever you decide to put them, you need to put the path of each of the zip files into your classpath. Once the classpath points to the zip files, you should be able to import all the files in them without any problems.

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Hi all.
I can not find the way to use java.rmi.server and java.rmi.activation packages.
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Using Oracle package variables in JDBC.

Can anybody know how we can use Oracle Package variable in Java/JDBC?
I am using a insert trigger on a table which will initialize the login user
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PLease let me know.

Siva,
You said:
It is not inserting the user in the tableI see no table, here. Only a variable in a PL/SQL package.
You also said:
But the same is working in Oracle.Do you mean in SQL*Plus?
Siva, try to forget how you are doing it, and tell me what you are trying to do.
Do you have some UPDATE_USER column in your database tables where you record the username of the person who did the operation?
Are you trying to write a trigger that populates this column?
If so, then all you need is something like:
create or replace trigger MY_TRIG
after insert or update
on MY_TABLE
for each row
begin
:new.UPDATE_USER := user;
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Avi.
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How do I create and use a package?

Sorry for the noobish question, but I have never had the need to use a package and currently would like to learn how they work just to satisfy my own curiosity.
Suppose I have a file named Node.class in a folder named Classes, and I have another class named Main.class sitting in another folder. I want to create a Node object using the Main class.
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I tried to write package Classes; on my Main file but it did not work. thanks

This is an old explanation I wrote:
This is a minimal explanation of packages.
Assume that your programs are part of a package named myapp, which is specified by this first line in each source file:
package myapp;
Also assume that directory (C:\java\work\) is listed in the CLASSPATH list of directories.
Also assume that all your source files reside in this directory structure: C:\java\work\myapp\
Then a statement to compile your source file named aProgram.java is:
C:\java\work\>javac myapp\aProgram.java
And a statement to run the program is:
java myapp.aProgram
(This can be issued from any directory, as Java will search for the program, starting the search from the classpath directories.)
Explanation:
Compiling
A class is in a package if there is a package statement at the top of the class.
The source file needs to be in a subdirectory structure. The subdirectory structure must match the package statement. The top subdirectory must be in the classpath directory.
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Then from the classpath directory (C:\java\work\) use the command: javac myapp\aProgram.java
Running
Compiling creates a file, aProgram.class in the myapp directory.
(The following is where people tend to get lost.)
The correct name now, as far as java is concerned, is the combination of package name and class name: myapp.aProgram (note I omit the .class) If you don't use this name, java will complain that it can't find the class.
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Last edited by kaola_linux (2008-12-09 15:24:36)

kaola_linux wrote:
Hello everyone, I recently installed arch 64bit which was not yet fully tweaked to suit my needs.
My 32bit version has some nice apps and I would like to know how to make use of them or even reuse them so that I won't download things anymore because I have a slow internet connection...:)
Arch x86_64 / XFCE4
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How to use stored package in form.

hi
i created the following package but now i want to use the following code in form
how could i use?.
create or replace package body mahi
is
-- Write a MIME header
procedure write_mime_header (
p_conn in out nocopy utl_smtp.connection
, p_name in varchar2
, p_value in varchar2
is
begin
utl_smtp.write_data ( p_conn
, p_name || ': ' || p_value || utl_tcp.crlf
end;
procedure mail (
p_sender in varchar2
, p_recipient in varchar2
, p_subject in varchar2
, p_message in varchar2
is
v_nls_charset VARCHAR2(50);
/*LOB operation related varriables */
v_src_loc BFILE := BFILENAME('BACKUP', 'Logon.jpg');
l_buffer RAW(54);
l_amount BINARY_INTEGER := 54;
l_pos INTEGER := 1;
l_blob BLOB := EMPTY_BLOB;
l_blob_len INTEGER;
v_amount INTEGER;
/*UTL_SMTP related varriavles. */
v_connection_handle UTL_SMTP.CONNECTION;
v_from_email_address VARCHAR2(30) := [email protected]';
v_to_email_address VARCHAR2(30) := '[email protected]';
I have used stunnel to send mail using smtp.gmail.com
To get stunnel see http://stunnel.org/.
The ORIGINAL idea is here :
http://monkeyonoracle.blogspot.com/2009/11/plsql-and-gmail-or-utlsmtp-with-ssl.html
v_smtp_host VARCHAR2(30) := 'localhost.localdomain';
v_subject VARCHAR2(30) := 'Your Test Mail';
l_message VARCHAR2(200) := 'This is test mail using UTL_SMTP';
/* This send_header procedure is written in the documentation */
PROCEDURE send_header(pi_name IN VARCHAR2, pi_header IN VARCHAR2) AS
BEGIN
UTL_SMTP.WRITE_DATA(v_connection_handle,
pi_name || ': ' || pi_header || UTL_TCP.CRLF);
END;
BEGIN
SELECT value
INTO v_nls_charset
FROM nls_database_parameters
WHERE parameter = 'NLS_CHARACTERSET';
/*Preparing the LOB from file for attachment. */
DBMS_LOB.OPEN(v_src_loc, DBMS_LOB.LOB_READONLY); --Read the file
DBMS_LOB.CREATETEMPORARY(l_blob, TRUE); --Create temporary LOB to store the file.
v_amount := DBMS_LOB.GETLENGTH(v_src_loc); --Amount to store.
DBMS_LOB.LOADFROMFILE(l_blob, v_src_loc, v_amount); -- Loading from file into temporary LOB
l_blob_len := DBMS_LOB.getlength(l_blob);
/*UTL_SMTP related coding. */
v_connection_handle := UTL_SMTP.OPEN_CONNECTION(host => v_smtp_host,
port => 1925);
UTL_SMTP.EHLO(v_connection_handle, 'gmail.com');
UTL_SMTP.COMMAND(v_connection_handle, 'auth login');
UTL_SMTP.COMMAND(v_connection_handle,
UTL_ENCODE.TEXT_ENCODE('[email protected]',
v_nls_charset,
1));
UTL_SMTP.COMMAND(v_connection_handle,
UTL_ENCODE.TEXT_ENCODE('xxxxx', v_nls_charset, 1));
--UTL_SMTP.MAIL(v_connection_handle, v_from_email_address);
--UTL_SMTP.RCPT(v_connection_handle, v_to_email_address);
UTL_SMTP.COMMAND(v_connection_handle,
'MAIL FROM: <'>');
UTL_SMTP.COMMAND(v_connection_handle,
'RCPT TO: <'>');
UTL_SMTP.OPEN_DATA(v_connection_handle);
send_header('From', '"Sender" <'>');
send_header('To', '"Recipient" <'>');
send_header('Subject', v_subject);
--MIME header.
UTL_SMTP.WRITE_DATA(v_connection_handle,
'MIME-Version: 1.0' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
'Content-Type: multipart/mixed; ' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
' boundary= "' || 'BACKUP.SECBOUND' || '"' ||
UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle, UTL_TCP.CRLF);
-- Mail Body
UTL_SMTP.WRITE_DATA(v_connection_handle,
'--' || 'BACKUP.SECBOUND' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
'Content-Type: text/plain;' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
' charset=US-ASCII' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle, UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle, l_message || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle, UTL_TCP.CRLF);
-- Mail Attachment
UTL_SMTP.WRITE_DATA(v_connection_handle,
'--' || 'BACKUP.SECBOUND' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
'Content-Type: application/octet-stream' ||
UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
'Content-Disposition: attachment; ' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
' filename="' || 'Logon.jpg' || '"' || --My filename
UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
'Content-Transfer-Encoding: base64' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle, UTL_TCP.CRLF);
/* Writing the BLOL in chunks */
WHILE l_pos < l_blob_len LOOP
DBMS_LOB.READ(l_blob, l_amount, l_pos, l_buffer);
UTL_SMTP.write_raw_data(v_connection_handle,
UTL_ENCODE.BASE64_ENCODE(l_buffer));
UTL_SMTP.WRITE_DATA(v_connection_handle, UTL_TCP.CRLF);
l_buffer := NULL;
l_pos := l_pos + l_amount;
END LOOP;
UTL_SMTP.WRITE_DATA(v_connection_handle, UTL_TCP.CRLF);
-- Close Email
UTL_SMTP.WRITE_DATA(v_connection_handle,
'--' || 'BACKUP.SECBOUND' || '--' || UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(v_connection_handle,
UTL_TCP.CRLF || '.' || UTL_TCP.CRLF);
UTL_SMTP.CLOSE_DATA(v_connection_handle);
UTL_SMTP.QUIT(v_connection_handle);
DBMS_LOB.FREETEMPORARY(l_blob);
DBMS_LOB.FILECLOSE(v_src_loc);
EXCEPTION
WHEN OTHERS THEN
UTL_SMTP.QUIT(v_connection_handle);
DBMS_LOB.FREETEMPORARY(l_blob);
DBMS_LOB.FILECLOSE(v_src_loc);
RAISE;
END;
end;
sarah helped me to create the above package but i am not able to use in form
i sent email to her but no reply.

hi
mehwish............just do for attachment.......
u can also use something like this...
Execute send_mail;and also.
try something like this..
example:
begin
mahi.mail('email address','subject','message','attachment');
end;Edited by: Sarah on Apr 18, 2011 10:25 AM

How can we use the same package in our report used by some other report

how can we use the same package in our report used by some other report

Hi,
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How to find length of string after encryption using DBMS_CRYPTO package

Hi,
I am planning do data encryption using DBMS_CRYPTO package. I want to find how much will be string length after encryption.
e.g When I try to encrypt string of length between 1-15 characters it gives me encrypted string of 32 characters. When I try with 16 charcters encrypted string is of 64 characters.
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Thanks
Pravin

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