How to transform a byte[] variable to a Integer variable?
Can anybody do me a favor to tell me how to trasform a byte[]variable to a Integer or String variable?
Thank you very much
To transform a bytearray to a string is simple:
String s = new String(byteArray);Transforming an bytearray to an Integer isn't that simple... I don't know the best way to do it. But one way is to transform it to a String and then:
Integer i = new Integer(new String(byteArray));//David
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Warmest Regards,
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Ideas on transforming a byte array?
I'm writing a program to compress files - I read it in, transform it and then write it out again. I'm just having a little confusion with the transforming.
I'm keeping it as basic as possible and just starting with finding and replacing repeating bytes with an instruction of how many times the following byte is repeated. ie a a a a a = 5 a _ _ _
In order to do this I create a temporary array to write to (initialised to the same size as the input) and then check through for repetitions. If something is repeated more than twice (3+), then a marker byte is put in (I wanted to have specific ones for however many times the byte is repeated - within reason - which is the switch statement below), the next byte is the byte to be repeated and then I want to jump forward to the next different byte.
I then go through the temp array count the repetitions, create a new smaller byte array and write temp[] to output[] ignoring the bytes that are repeated.
This is what I have so far, but it doesn't quite do what I want:
public class Transformer {
byte[] input;
byte[] temp;
byte[] output;
byte rep;
public Transformer() {
public byte[] transform(byte[] in) {
input = in;
temp = new byte[in.length];
output = new byte[count(input, temp)];
output = compress(temp, output);
return output;
private int count(byte[] from, byte[] to) {
int k = 0; // total bytes copied so far
byte markerByte = (byte) 0xE1;
for (int i = 0, j = 0; i < from.length; i = j) {
for (j = i+1; j < from.length && from[j] == from[i] && j-i < 128; j++);
if (j-i >= 3) {
to[k++] = markerByte;
to[k++] = (byte) (j-i);
to[k++] = from[j-1];
} else {
to[k] = from[k];
k = i+1;
return k;
// (the following method isn't finished)
private byte[] compress(byte[] from, byte[] to) {
for (int i = 0; i < from.length; i++) {
if (from[i] == (byte) 0xE1) {
System.out.println("repeat");
System.out.println(from);
return to;
private byte getRepeatByte(int numberOfRepeats) {
byte instruction;
switch (numberOfRepeats) {
case 1: instruction = (byte) 0xE1; break;
case 2: instruction = (byte) 0xE2; break;
case 3: instruction = (byte) 0xE3; break;
case 4: instruction = (byte) 0xE4; break;
case 5: instruction = (byte) 0xE5; break;
case 6: instruction = (byte) 0xE6; break;
case 7: instruction = (byte) 0xE7; break;
case 8: instruction = (byte) 0xE8; break;
case 9: instruction = (byte) 0xE9; break;
case 10: instruction = (byte) 0xEA; break;
case 11: instruction = (byte) 0xEB; break;
case 12: instruction = (byte) 0xEC; break;
case 13: instruction = (byte) 0xED; break;
case 14: instruction = (byte) 0xEE; break;
case 15: instruction = (byte) 0xEF; break;
default: instruction = (byte) 0xE0; break;
return instruction;
At the moment I'm using a marker byte in the transform() but I want to be using the switch statement to work out the right byte to put in first.
Does anyone have any advice on if I'm doing this in a ridiculous way or if my methods won't work.. As I haven't written a decompressor yet, it's pretty hard to test!baftos - thank you for your advice, i will try that and see how it goes.
Jos - it is your method and thank you very much for it! It's part of an ongoing project of mine, which is turning out to be more challenging than i originally thought - when i posted on the other forum your loop did perfectly what I was trying to do at the time. I need all the advice i can get and hence post on multiple forums. -
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I am trying to understand when/how the transforms made in the transform panel are applied to display objects so that I can manipulate them using action script. To be clear, I understand that I can use the display object properties such as rotation to transform a display object, and I understand that I can also use a matrix transformation. Unfortunatley, this doesn't always seem to have the same behavior when nesting as direct transformations using the panel. So I would like to find a way to manipulate whatever properties the transform panel is changing.
Maybe this isn't clear, so here's an example.
On a new stage, I place a rectangle and use the transform panel to rotate it 39 degrees. Then I assign this shape to a variable and use the debug panel to inspect the member properties of the shape. As far as I can tell, this rotation value is not contained within any of the transformation parameters. Is it pre-applied?
If I use the "export as XML" option, the rotation value is listed in the "Source" tag, as below:
<Motion duration="1" xmlns="fl.motion.*" xmlns:geom="flash.geom.*" xmlns:filters="flash.filters.*">
<source>
<Source frameRate="24" x="265" y="184.5" scaleX="1" scaleY="1" rotation="39" elementType="drawing object">
<dimensions>
<geom:Rectangle left="111.35" top="35.1" width="307.25" height="298.85"/>
</dimensions>
<transformationPoint>
<geom:Point x="0.5000813669650123" y="0.5099548268362054"/>
</transformationPoint>
</Source>
</source>
<Keyframe index="0"/>
</Motion>
So this is being stored as a value somewhere. Any ideas?
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How can I share Pin variable between two packages?
Hi every one,
Is there any one who knows how can I share Pin variable that it is defined with OwnerPin between two packages in java card( with eclipse 3.1),I studied Sharing Interface subject and I knows it teorical but I can not do it practical .
I can share primitive data type but I can not share Ownerpin.
If anybody has some sample codes or knows any link ,please inform me.
My code is same as below:
//In Server Side
package ginaPack;
import javacard.framework.*;
public class GinaApplet extends Applet implements GinaInterface{
OwnerPIN pin;
private GinaApplet (byte[] bArray,short bOffset,byte bLength) {
pin =new OwnerPIN(PIN_TRY_LIMIT,MAX_PIN_SIZE);
byte PinTemp[] = new byte[4];
PinTemp[0] = (byte) 0x31;
PinTemp[1] = (byte) 0x31;
PinTemp[2] = (byte) 0x31;
PinTemp[3] = (byte) 0x31;
pin.update(PinTemp, (short) (0), (byte) PinTemp.length);
public Shareable getShareableInterfaceObject(AID clientAID,byte parameter)
return this;
public OwnerPIN getPinShareable()
return pin;
public void process(APDU apdu)
//there are some codes in this here
}//Interface in Server side
public interface GinaInterface extends Shareable
public OwnerPIN getPinShareable();
}//In Client side
import ginaPack.*;
public class UserCardApplet extends Applet {
private UserCardApplet(byte[] bArray, short bOffset, byte bLength) {
//there are some codes in this here
public boolean select() {
final byte[] Gina_AID={(byte)0x47,(byte)0x69,(byte)0x6e,(byte)0x61,(byte)0x41,(byte)0x70,(byte)0x70,(byte)0x6c,(byte)0x65,(byte)0x74};
AID GinaAID = JCSystem.lookupAID( Gina_AID, ( short )0,( byte )Gina_AID.length );
if ( GinaAID == null ) // probably not loaded on card
ISOException.throwIt( ISO7816.SW_FUNC_NOT_SUPPORTED );//6a 80
GinaInterface ff = (GinaInterface) JCSystem.getAppletShareableInterfaceObject(GinaAID,(byte)0);
if( ff == null )
ISOException.throwIt((short)0x0903);
if ( ff.getPinShareable().getTriesRemaining()== 0 ) return false;
}My problem is in this line :
"if ( ff.getPinShareable().getTriesRemaining()== 0 ) return false; "when I select my applet this line throw an exception, ff.getPinshareable includes all of OwnerPin methods(such as getTriesRemaining ,check ,reset, update ,...)but all of them throw exception .
I think firewal does not allow other packages uses this methods .If my guess is right then what should I do for sharing the variables that they are defined with non primitive data type such as (OwnerPin,Signature,...)
I'd appriciated for any help.
yours sincerely,
Orchid.
Message was edited by:
NewOrchidApplet 1:
package com.package1;
import javacard.framework.*;
public class Applet1 extends Applet {
private static final byte tryLimit = (byte)3;
private static byte[] pinBytes = {(byte)1, (byte)7, (byte)4, (byte)5, (byte)2};
private Library1 lib;
protected Applet1(byte bArray[], short bOffset, byte bLength) throws PINException {
lib= new Library1(tryLimit, (byte)pinBytes.length);
lib.update(pinBytes, (short)0, (byte)pinBytes.length);
register();
public static void install(byte[] bArray, short bOffset, byte bLength) {
new Applet1(bArray, bOffset, bLength);
public void process(APDU apdu) {
byte status=(byte)0;
lib.resetAndUnblock();
if (!(lib instanceof Shareable)) status += (byte)2;
if (!(lib instanceof MyPIN)) status += (byte)4;
ISOException.throwIt(Util.makeShort((byte)0x90, status)); // sw indicates tries remaining
public Shareable getShareableInterfaceObject(AID cltAID, byte parm) {
return lib;
}Library1:
package com.package1;
import javacard.framework.OwnerPIN;
import javacard.framework.PINException;
public class Library1 extends OwnerPIN implements Interface1{
public Library1(byte tryLimit, byte maxPINSize) throws PINException {
super(tryLimit, maxPINSize);
}Interface1:
package com.package1;
import javacard.framework.PIN;
import javacard.framework.Shareable;
public interface Interface1 extends Shareable {
boolean check(byte[] pin, short offset, byte length);
byte getTriesRemaining();
boolean isValidated();
void reset();
}Applet2:
package com.package2;
import javacard.framework.*;
import com.package1;
public class Applet2 extends Applet {
private final static byte CLA_TEST = (byte)0x80;
private final static byte INS_TEST = (byte)0x20;
private final static byte P1_AUTHORIZE = (byte)0x00;
private final static byte P1_DOIT = (byte)0x01;
private final static byte P1_CHECK_SIO = (byte)0x0a;
private Interface1 sio;
protected Applet2(byte bArray[], short bOffset, byte bLength) {
register();
public static void install(byte[] bArray, short bOffset, byte bLength) {
new Applet2(bArray, bOffset, bLength);
public void process(APDU apdu) {
byte[] buffer = apdu.getBuffer();
if ((buffer[ISO7816.OFFSET_CLA] == CLA_TEST) ||
(buffer[ISO7816.OFFSET_CLA] == ISO7816.CLA_ISO7816)) {
short bytesReceived = apdu.setIncomingAndReceive();
switch (buffer[ISO7816.OFFSET_INS]) {
case ISO7816.INS_SELECT:
if (!JCSystem.getAID().equals(buffer, ISO7816.OFFSET_CDATA, buffer[ISO7816.OFFSET_LC]))
ISOException.throwIt(ISO7816.SW_APPLET_SELECT_FAILED);
sio = (Library1)JCSystem.getAppletShareableInterfaceObject(JCSystem.lookupAID(<fill in parameters>);
if (sio == null)
ISOException.throwIt(ISO7816.SW_CONDITIONS_NOT_SATISFIED);
break;
case INS_TEST:
switch (buffer[ISO7816.OFFSET_P1]) {
case P1_AUTHORIZE:
if (!sio.isValidated()) {
if(!sio.check(buffer, ISO7816.OFFSET_CDATA, buffer[ISO7816.OFFSET_LC]))
ISOException.throwIt(Util.makeShort((byte)0x9A, sio.getTriesRemaining()));
break;
case P1_DOIT:
if (!sio.isValidated())
ISOException.throwIt(ISO7816.SW_SECURITY_STATUS_NOT_SATISFIED);
sio.reset();
ISOException.throwIt(Util.makeShort((byte)0x9A, sio.getTriesRemaining()));
break;
default:
ISOException.throwIt(ISO7816.SW_INCORRECT_P1P2);
break;
default:
ISOException.throwIt(ISO7816.SW_INS_NOT_SUPPORTED);
else {
ISOException.throwIt(ISO7816.SW_CLA_NOT_SUPPORTED);
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2. Install Applet1
3. Select Applet1
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Using transformation to Update variable
Hi,
I have a scenario where I need to update a variable in a transformation. The variable I am trying to update already has some values populated and I need to update a few more from another source.
As an example (took namespace out for simplicity):
TARGET Varaible before update:
<Receive_Orders_InputVariable>
<part>
<BB2COrderHeaderCollection>
<BB2COrderHeader>
*<orderTypeId> <orderTypeId>* this is the value I want to update
<orderId>1111</orderId>
</BB2COrderHeader>
<BB2COrderHeader>
*<orderTypeId> <orderTypeId>* this is the value I want to update
<orderId>2222</orderId>
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</BB2COrderHeaderCollection>
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SOURCE (Variable I an trying to get the value from, by matching the orderId):
<Get_orderType_Output_Variable>
<part>
<orderTypeCollection>
<orderType>
*<orderTypeId>5555<orderTypeId>*
<orderId>1111</orderId>
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<orderType>
*<orderTypeId>4444<orderTypeId>*
<orderId>2222</orderId>
</orderType>
</orderTypeCollection>
</part>
</Get_orderType_Output_Variable>
Desired TARGET:
<Receive_Orders_InputVariable>
<part>
<BB2COrderHeaderCollection>
<BB2COrderHeader>
*<orderTypeId>5555<orderTypeId>* this is the value I want to update
<orderId>1111</orderId>
</BB2COrderHeader>
<BB2COrderHeader>
*<orderTypeId>4444<orderTypeId>* this is the value I want to update
<orderId>2222</orderId>
</BB2COrderHeader>
</BB2COrderHeaderCollection>
</part>
</Receive_Orders_InputVariable>
Here is the logic:
For Each TARGET
If SOURCE/orderId = TARGET/orderId
then update TARGET/orderTypeIdHi,
If you need to update a few more from another source u can use the append operation in the assign activity this will append to the content already there.
you can also look into this...
How to create array in bpel
Edited by: Oraacler on Mar 30, 2010 12:43 AM -
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hi,
I would like to write an SQL but I want to use bind variable in package as a static without asking user? Like below?
I would like to ask you, below there is a emp_id variable? Is this BIND variable?
DECLARE
bonus NUMBER(8,2);
emp_id NUMBER(6) := 100;
BEGIN
SELECT salary * 0.10 INTO bonus FROM employees
WHERE employee_id = emp_id;
END;
If not, like this SQL how can define a BIND variable as static inside a code? not asking a user?
db version. 9.2.0.8
regards and thanksOracleADay wrote:
I would like to ask you, below there is a emp_id variable? Is this BIND variable?
DECLARE
bonus NUMBER(8,2);
emp_id NUMBER(6) := 100;
BEGIN
SELECT salary * 0.10 INTO bonus FROM employees
WHERE employee_id = emp_id;
END;
/In the query "SELECT salary * 0.10 INTO bonus FROM employees WHERE employee_id = emp_id" emp_id is turned into a bind variable because
if you are coding static SQL in PL/SQL then PL/SQL wil automatically use bind variables: please read http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/overview.htm#sthref145.
This can also be proved with SQL trace. The following code:
alter session set sql_trace=true;
declare
v number;
c number;
begin
select count(*) into c
from t
where x=v;
end;
show errors
alter session set sql_trace=false;generates following raw trace file section with 10G XE:
=====================
PARSING IN CURSOR #2 len=79 dep=0 uid=69 oct=47 lid=69 tim=33338762257 hv=2860574766 ad='3c10120c'
declare
v number;
c number;
begin
select count(*) into c
from t
where x=v;
end;
END OF STMT
PARSE #2:c=46800,e=329811,p=0,cr=9,cu=0,mis=1,r=0,dep=0,og=1,tim=33338762253
=====================
PARSING IN CURSOR #1 len=35 dep=1 uid=69 oct=3 lid=69 tim=33338788761 hv=3539261652 ad='3c10053c'
SELECT COUNT(*) FROM T WHERE X=:B1
END OF STMT
PARSE #1:c=0,e=216,p=0,cr=0,cu=0,mis=1,r=0,dep=1,og=1,tim=33338788755
=====================Edited by: P. Forstmann on 17 mai 2011 17:47
Edited by: P. Forstmann on 17 mai 2011 17:55 -
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By the way,Did anyone used the class of "oracle.apps.fnd.cp.request.RemoteFile"?
The following is the code.
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Can anyone help me on this?
private String getURL()
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File remC = new File(mPath);
String lurl = null;
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very urgent.
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I'm mass distributing an application, and for the next update I want to add customization. My application currently make a folder in the "Documents" folder. The folder is called "MCL_CONFIG". What I need to do is make a unicode text file in "MCL_CONFIG". Since it's going to be used on many different computers the path to where I'm making the new file has to change depending on the user. How can I make a variable path to a non-directory? Here's the section of my code with the problem:
tell application "Finder"
if folder MCLConfig exists then
else
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make new folder at New_User with properties {name:"MCL_CONFIG"}
end if
end tell
It's not shown but I set the variable MCLCONFIG to (path to documents folder from user domain) & "MCL_CONFIG" as text.
As a side note how do I make the code look like it does in applescript, here?You can do something like:
set supportFolder to ((path to application support from user domain) as text)
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set subFolder to "MCL_CONFIG"
tell application "Finder" -- add application support folders if needed
if not (exists folder (supportFolder & appName)) then
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I have a live video feed from my webcam in my Flash Application. I have a second video window next to it that I want to place a variable delayed video of the live stream. Therefore, I need to save the video stream in memory/disk and create this variable delay, say 5-60 seconds. As well as, continue to capture the live stream. The camera I am using suppots H.264 encoding.
How do I create a variable length queue or buffer to hold the video stream coming into the flash application. Do I create a memory variable or write this to disk ? I have been looking over the ActionScript 3.0 documentation and I can not figure out how to code this either way ( as a memory variable or write to disk queue ).
I want to be able to change the delay, view the delay stream in slow motion and scrub through the delayed stream.
I would like to do this with out having to use Flash Media Server.
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BobI am sure it is practically impossible to accomplish that on the client side. Although theoretically it is conceivable to use NetStream.appendBytes() but it requires an extremely complex implementation.
I suggest you look into FMS DVR capacities:
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Hi,
How can I set a variable number of values in a SQL IN clause without having to change the text of the SQL statement each time?
I read the link http://radio.weblogs.com/0118231/2003/06/18.html. as steve wrote.
SELECT *
FROM EMP
WHERE ENAME IN (?)
But we need the steps not to create type in the system and would there be any other solution if we would like to use variable number of values in a SQL IN clause ?
We are using JDeveloper 10.1.3.2 with Oracle Database 10.1.3.2
Thanks
RajHi,
can you please explain why the solution from steve is not the right solution for you.
regards
Peter
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