Oraub8 (64-bit int) and Number class

What's the best mechanism for getting and setting numbers from a 64-bit integer (oraub8). I'm surprised these methods don't exist the Statement or ResultSet classes by now.
Strategies I'm considering: A) use getNumber().getBytes() and then do the conversion, or B) use setDataBuffer() to get the raw number format directly and then do the conversion.

That's my whole point. The OCCI Number class doesn't have an operator int64() method. Nor do Statement or ResultSet have getXXX()/setXXX() methods for 64-bit integers. Compilers have supported 64-bit ints for a while now.
Sequences used as primary key generators can certainly be larger than a 32-bit integer. I don't have a primary key that large...yet. But I could being there within the next year or two. I'm looking for a migration path for my code. Continuing to represent a primary key as a whole number within the app is cleaner than converting from int to string.

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Difference between int and byte

what is the main difference between int and byte?

A byte is the format data is stored in memory in past. 8 bits.
An int is a format likewise you get it as value from the accumulator. For X64 that is Int64.
For compatibility the "Integer" is kept currently on Int32, the register format from the X86 computers.
Older computers likewise the 8088 had an 8 bit Int and therefore that was the same as the byte.
The 80286 had a 16 bits Integer.
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Oracle.jbo.domain.Number to int and back

I have a database field that comes back as a oracle.jbo.domain.Number.
I want to increment this by one so was trying to convert it to an int, apply the increment then turn it back into a number.
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Richard

Convert oracle.jbo.domain.Number to int with the intValue method.
oracle.jbo.domain.Number var;
int intValue=var.intValue();Convert int to oracle.jbo.domain.Number with the Number (int value) constructor.
int intValue;
oracle.jbo.domain.Number var=new oracle.jbo.domain.Number(intValue);

Create material serial number and update class type and class

Hi ,
do we have any function to create material serial number and update class type, class and Characteristic Description?
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hi
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RAJ on Oct 14, 2008 3:20 PM

Addition in Java bits, bytes and shift

Hi,
I have a byte array consisting of 8 bit values in each cell.
When I do an addition of two cells - which gives me a 16 bit result I use the following:
Integer a = (int) (arr[value] & 0xff);
a = a << 8;
Integer b = (int) (arr[secondValue] & 0xff);
Integer c = a + b;This seems to work fine. My question is how would I add 3 (24 bit result) or 4 (32 bit result) cells.
Would the following work: 24 bit result
Integer a = (int) (arr[value] & 0xff);
a = a << 16;
Integer b = (int) (arr[secondValue] & 0xff);
Integer c = (int) (arr[thirdValue] & 0xff);
Integer d = a + b + c;I am not sure if I have got the shift (<<16) usage correct or if it should be used in order to obtain the variables b or c.
All help appreciated.

khublaikhan wrote:
Just to confirm for 32 bit it would be:
// 32-bit
int a = (int)(arr[value] & 0xff);
int b = (int)(arr[secondValue] & 0xff);
int c = (int)(arr[thirdValue] & 0xff);
int d = (int)(arr[fourthValue] & 0xff);
int e = (a<<24) + (b<<16) + (c<<8) + d;
Integer eInt = new Integer(e);
Actually, the more I think about it, you may need to use longs instead of ints for 32-bit (not 16- or 24-bit though). It depends on what your data actually is. If you're expecting your 32-bit number to be an unsigned integer, then you'd better go with long. This is because in Java, ints utilize two's complement, so if the high-order byte you read in for a 32-bit value is very large, the resulting int will be interpreted by Java as a negative number instead of the large positive value you expect.
I'm probably not being very clear. Check out http://en.wikipedia.org/wiki/Two's_complement for the details.
In other words, if you wanted to get 32-bit values in this way, and the computed values are expected to be non-negative integers, use this:
// 32-bit
int a = (int)(arr[value] & 0xff);
int b = (int)(arr[secondValue] & 0xff);
int c = (int)(arr[thirdValue] & 0xff);
int d = (int)(arr[fourthValue] & 0xff);
long e = (a<<24) + (b<<16) + (c<<8) + d;
Long l = new Long(e);If you're actually reading in a 32-bit, two's complement value, then keep using int like you originally posted.

How can if find the most repeated character and number ???

Hi,
I have a question. For instance, if we have a text file which contains:
aaabbbhhhhhhtttttsjs12366
How can i find the most repeated character and number. I have to add this code to the following program:
I will aprreciate if you can help.
Regards,
Serkan
import java.io.*;
public class LineLen {
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}

For a small alphabet like English, array migt be used:
//in a for loop
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// that returns a new Integer object

Inheritance and extending classes - homework

Here ive got a problem, firstly i don't know why this code won't work, ive got to use the keywords abstract + extend.
Ive put this all into one .java file, when should I put a class into a different file and not place it as an inner like i have done a number of times here ?
public abstract class shape {
int pi;
int radius;
public class twoD extends shape {
twoD(int r, int p) {   //constructor for circle
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pi = p;
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System.out.println(circleArea);
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System.out.println(circleCircum);
class circle extends twoD {
public static void main(String args[]){
twoD ob = new twoD(5,10);
ob.setAreaCircle();
ob.setCircumCircle();

K ive done as suggested and added a constructor that calls its superclass contrustor but its still not working. :(
Any clues ?
public abstract class shape {
int pi;
int radius;
class twoD extends shape {
twoD(int r, int p) {   //constructor for circle
radius = r;
pi = p;
public void setAreaCircle() {   // area of circle method
int circleArea = pi * radius^radius;
System.out.println(circleArea);
public void setCircumCircle() {   // circumfreanceof circle method
int circleCircum = 2 * pi^radius;
System.out.println(circleCircum);
public class circle extends twoD {
public static void main(String args[]) {
public circle(int r, int p) {     // call to superclass constructor
super(r,p);
twoD ob = new twoD(5,10);
ob.setAreaCircle();
ob.setCircumCircle();

SSIS is not running in 64 bit production server - Error Class cannot be found while running from c# web application

Full error message:
An Integration Services class cannot be found. Make sure that Integration Services is correctly installed on the computer that is running the application. Also, make sure that the 64-bit version of Integration Services is installed if you are running a 64-bit
application
I have developed SSIS package in my development machine where the OS is 64 bit and sql server 2012 is installed.
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microsoftcom/en-us/download/details.aspx?id=13255
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forums.aspnet/t/1990417.aspx?Issue+deploying+SSIS+Package+in+production+web+server

1) "I have set Run64BitRuntime to False and ran package" -> this is not valid outside of your development environment, it is made for simulation purposes as all the dev tools are 32 Bit
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Arthur
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Vista 64 bit OS and iTunes

I am getting an error message when initializing iTunes.
iTunes was not properly installed. If you wish to import or burn CD's
you need to reinstall iTunes.
I uninstalled, cleaned the reg, and reloaded a few times.
Diagnostic DVD/CD test results "Upper Filter Status Failed" (no CD Rom Driver found)
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Bud
Message was edited by: idraliv

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download the installation file(s) and activate with your serial number,
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Hello,
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As it's off-topic here, I am moving the question to the
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When you see answers and helpful posts, please click Vote As Helpful, Propose As Answer, and/or Mark As Answer.
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Annonymous and inner classes

Hello,
Can anyone tell me what the benefits of anonymous and inner classes are? inner classes are seem pretty complicated without any obvious benefit.
I have read about these in books and have some understanding of them but these don't appear to have any benefits.
Any info on either would be really cool.
regards

There are many places where inner classes can be useful. One place where anonymous inner classes are particularly neat is for ActionListeners. For example, compare the "normal" way of doing it:
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Working with traits and policy classes

I have not been able to see if anyone has raised this before from my searches of the forums but this may just be bad searching !
I am trying to investigate how much of the traits / policies idioms of working in C++ generic programming are applicable to Java. The following trio of classes are a very striped down version of one problem I am having. It relates to the use of static methods, inheritance and generic classes.
First a couple of classes with static methods related by inheritance.
public class X {
public static int get() {
    System.err.println("X.get.") ;
    return 1 ;
public class Y extends X {
public static int get() {
    System.err.println("Y.get.") ;
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public class TypeParameterLookupSolved<A extends X> {
private void doit() {
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public static void main(final String[] args) {
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}The output from running this is:
X.get.
1
So the question is why does the call of A.get() always bind to X.get() when na�vely you would expect Y.get() to be called.
If Java will only ever call X.get() in this instance then the policy class idiom will not work properly . Of course it may be that there is another way of doing this that I have missed.
Thanks.

Thanks for the correction.
I never can get the hang of up and down in type hierarchies -- functional programming people talk a lot about top and bottom in type hierarchies and I never remember which is which. One of these days I will find a mechanism for putting the knowledge into long-term memory :-)
Having had the epiphany of "least upper bounds", it is now trivially easy to do Java-style generic programming (which is good :-) even though it is totally different to everyone else (C++, Python, Groovy, Ruby, Nice, CL, OCAML, Haskell, . . .-- which is not so good). I am increasingly of the view that using the term Generics has been a labelling error and an unfortunate disservice to Java as it can set up a mind-set about parameterized types and "generic programming" that is fundamentally wrong. I can feel a series of short articles coming on as well as sorting out my ADS library!

JSF and DTO classes

Hello,
I am interested in the following situation. I have 2 database tables and corresponding DTO and DAO classes. Here are the DTO classes:
public class DTO1 {
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    private String column2;
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Should I extend DTO1 class and add another field, e.g.
public class DTO1Extended extends DTO1{
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Or, should I add this name field in my base model class, e.g.:
public class DTO1 {
    private int column1;
    private String column2;
    private String column3;
    private int fk1;
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}I think that the first approach is more OO.
Or, maybe, there is some other (better) solution?
What would some persistence framework, like Hibernate, done to resolve this situation?

Already answered in the other thread which you hijacked: [http://forums.sun.com/thread.jspa?threadID=5360009].

Oraub8 (64-bit int) and Number class

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