How many objects exist in this situation?

class A {
class B {
    public A getA() {
        return new A();
    public static void main(String[] args) {
        B blah = new B();
}I guess what I'm really asking is does an object A exist even if I haven't called the method getA()?

You create a new object each time you call new (or clone).

Similar Messages

How many Objects are created in this?

Hi,
How many objects are created in the flwg code:
String str = new String("Hello");
String str2 = "Hey there";
str = str + str2;

Depends if you're counting objects created at compile time.
"Hello" is created at compile time. That's 1.
new String("Hello") creates a new String object at runtime, pointing its backing array at the "Hello" in the constant pool. That's 2.
"Hey there" is created at compile time. 3.
str + str2 I might do everything at compile time, or it might do some at runtime. I don't know if str is considered a compile time literal here. I think not, but I'm not sure. You can check by using javap. If I'm correct, then at runtime you'll create a StringBuffer (4) and another String (5).
So I'd say 5 objects. But if the compiler treats str as a literal and therefore can do the str+str2 at compile time, then it might do so without creating the StringBuffer. Or it might still create it at compile time, use it, and throw it out.

How many Objects created??

Hi Friends,
I am really confused with this question,can someone please tell me how many objects would be created by the following code??My answer is two("java" on the heap and the normal new String() Object),am i right???
public class Objects{
public static void main(String[] args)    {
    String one = "Java";
    String two = "Java";
    String three = "J" + "a" + "v" + "a";
    String four = new String("Test");
}Thanks

Probably not, since all the operands are string
literals. The compiler probably sees that and instead
generates the same bytecode that it would have if it
had been coded as: "Java" in the first place. But
again, still stupid and pointless.just what i wanted to say but was a bit slow. maybe it's stupid and pointless,
but for grins, i am attaching the constants pool from the class file that was
obtained by compiling the code in post 1 with Sun's compiler. I don't see any
"J" or "a" or .........
pool index: 1 type: 10 class index: 7 name index: 16 value: null
pool index: 2 type: 8 class index: -1 name index: 17 value: null
pool index: 3 type: 7 class index: -1 name index: 18 value: null
pool index: 4 type: 8 class index: -1 name index: 19 value: null
pool index: 5 type: 10 class index: 3 name index: 20 value: null
pool index: 6 type: 7 class index: -1 name index: 21 value: null
pool index: 7 type: 7 class index: -1 name index: 22 value: null
pool index: 8 type: 1 class index: -1 name index: -1 value: <init>
pool index: 9 type: 1 class index: -1 name index: -1 value: ()V
pool index: 10 type: 1 class index: -1 name index: -1 value: Code
pool index: 11 type: 1 class index: -1 name index: -1 value: LineNumberTable
pool index: 12 type: 1 class index: -1 name index: -1 value: main
pool index: 13 type: 1 class index: -1 name index: -1 value: ([Ljava/lang/String;)V
pool index: 14 type: 1 class index: -1 name index: -1 value: SourceFile
pool index: 15 type: 1 class index: -1 name index: -1 value: Objects.java
pool index: 16 type: 12 class index: 9 name index: 8 value: null
pool index: 17 type: 1 class index: -1 name index: -1 value: Java
pool index: 18 type: 1 class index: -1 name index: -1 value: java/lang/String
pool index: 19 type: 1 class index: -1 name index: -1 value: Test
pool index: 20 type: 12 class index: 23 name index: 8 value: null
pool index: 21 type: 1 class index: -1 name index: -1 value: Objects
pool index: 22 type: 1 class index: -1 name index: -1 value: java/lang/Object
pool index: 23 type: 1 class index: -1 name index: -1 value: (Ljava/lang/String;)Vwalker

I need to know how many objects i got selected

Hi all,
I need to know how many objects i got selected for a particular issue and ussualy are too many to count one by one. I know that this information is provided in other software like Corel or Freehand, but I didn't find out how to get this info in Illustrator.
Any idea?
Thanks

Open the Document Info palette.
From its flyout menu, turn on Selection Only and Objects.
The palette will not remember those settings. You have to re-select them every time you relaunch Illustrator.
The Document Info palette is a half-baked hack, tagged-on to display a subset of the information in the normally-hidden programmer's window, instead of incorporating the data properly into the program's interface. So it's another completely unintuitive grab-bag of important information that everyone needs, but no one would expect to look for there.
JET

How many objects are created?

I have this question which some one posted to me.
He asked me how many objects are created when an object of a simple class is created for example
class A{
public static void main(String args[])
A a1 = new A();
Now how many objects are created? I think only one. Can anyone tell me if any other objects are also created.
Plz tell me .

No, the answer is indeed 1. All the other objects
(including the String[] in the main method
parameters) are created outside of the A
class, either by the JVM itself or by some other
class that calls the A.main() method. You can try
this out for yourself by adding a constructor such as
A()
System.out.println("Creating class A");
} and see what prints out.Take a closer look at the question:
how many objects are created when an object of a
simple class is created for exampleIt doesn't say "how many objects of type A are created".
I.e. The VM has to load class A before you can create an object from it, and thus an object of type Class is created. There are also a bunch of other objects which needs to be created before you can instantiate A.
Kaj

Seing how many objects are selected.

Hi! I'm having a problem seing how many objects are selected when I navigate in Finder's windows. In Snow Leopard, there used to be a grey bar at the bottom telling you these infos, but this seems to be gone in Lion. Anyone knows how to get it back?
Thank you!

Open the Document Info Palette.
Find its secret little flyout menu.
Select from that menu "Objects".
Let go.
Then go to that same menu all over again and select "Selection Only".
Scroll through the list and sum the quantities shown. Except be careful not to include the count of "All Text Objects" with the counts of "Point Type Objects", "Area Type Objects", and "Type On A Path Objects".
Repeat those steps every time you start a new work session in AI, because AI's palettes can't remember the way you set them between launches.
How could you have overlooked that intuitive and straightforward routine?
JET

How many objects will be created due to constructor chaining

Consider this case
ChildClass obj = new ParentClass();
I would like to know how many objects will be created in this process.

Consider this case
ChildClass obj = new ParentClass();
I would like to know how many objects will be created
in this processThe simple answer is one.
The complex answer is many.
In terms only of the classes that your code represents conceptually there will be one.
The reality is that the the object itself might create objects. And loading the classes, if it has not already occurred will also create objects.

HT1420 I purchased new computers twice within the same year because they old were damaged in a storm. However, I can't deauthorize/reauthorize the new computers. How do I deal with this situation.

I purchased new computers twice within the same year because they were damaged in a storm. However, I can't deauthorize/reauthorize the new computers because it has been less than a year. How do I deal with this situation?

BrianBlaze wrote:
I have 3 Computers at home, I am studying computer sciences and am constantly rerformatting my computers, installing windows and linux over and over again.... EVERYTIME I reformat I have to authorize the same computer and so it takes up one of my 5 authorized computers... Anyways after deauthorizing all my computers in september I was not aware I couldn't do it for another year (why does APPLE assume these stupid tactics prevent piracy). Anywysw I need to reach apple and have them make it so I can do it again. I had a similar problem with Playstation and when I called them they fixed it for me... even windows (which you can only have one serial per computer) made it easy because all I had to do was call them and they fixed it for me. Now I need APPLE to do the same and this is the only place I could see to actually say what is going on... I can't believe I have to do this with my iPhone... I wanted an mp3 player and a phone together and if I can't put new songs until September 20, 2012 I am going to freak out!
HELP!
Brian
Try this link: http://www.howtogeek.com/howto/23974/beginner-deauthorize-all-computers-associat ed-with-your-itunes-account/

In query, how many objects can include in structure

Hi expert,
In BEX query coloum, How many objects can include in structure.

Hi Sunil,
We can include maximum of 999 fields in one structure.
http://help.sap.com/saphelp_nw04/helpdata/en/4d/e2bebb41da1d42917100471b364efa/frameset.htm
Regards,
Venkatesh

HOW TO use DBDataSource in this situation?

hi all,
I add a Matrix on system Form(eg:BOM Form),then I want to use Matrix.LoadFromDataSource() to load data.
the simple code is :
SAPbobsCOM.Recordset oRecordset = (SAPbobsCOM.Recordset)SBO_Company.GetBusinessObject(SAPbobsCOM.BoObjectTypes.BoRecordset);
            oRecordset.DoQuery("select ItemCode,ItemName from OITM ");
            SAPbouiCOM.Matrix oMatrix = (SAPbouiCOM.Matrix)m_SboForm.Items.Item("MatrixFormUID").Specific;
                SAPbouiCOM.DBDataSource oDBData = m_SboForm.DataSources.DBDataSources.Item("tablename");//this dbdatasource is added before
                oDBData.Clear();//error occur in this code:Operation is not supported in system Form
                oRecordset.MoveFirst();
                while (!oRecordset.EoF)
oMatrix.LoadFromDataSource();
how to use LoadFromDataSource() in this situation?if evaluate every control,the speed is too slow.
thanks

The quick way is as I wrote you - bind it to datasource (you fill it cell by cell). The code is something like:
omatrix.Clear()
oColumn = oColumns.Item("Column name 1")
oColumn.DataBind.SetBound(True, "table name", "itemcode")
oColumn = oColumns.Item("Column name 2")
oColumn.DataBind.SetBound(True, "table name", "itemname")
oMatrix.LoadFromDataSource();
There isn`t necessary the while (!oRecordset.EoF) cycle

If I want to purchase PhotoShop CS6 for my company, how many computers can install this copyright or only one time of installation?

If I want to purchase PhotoShop CS6 for my company, how many computers can install this copyright or only one time of installation?

YOu can install and activate on 2 computers for non-concurrent use.
Mylenium

How do count how many 'A' s in this string using sql stmt?

hi all,
i have a string like 'AAAAARAMAAAAKRISHNAAAA'.
in this ,i want to find out how many 'A's .
how do find out this using select stmt.

(length(s) - nvl(length(replace(s, 'A')), 0)) / length('A')but consider (by modifying the question slightly to "how do count how many 'AA' s in this string using sql stmt? ")
SQL> select (length('AAAAARAMAAAAKRISHNAAAA') - nvl(length(replace('AAAAARAMAAAAKRISHNAAAA', 'AA')), 0)) / length('AA') x from dual
         X
         6
1 row selected.couldn't I argue that the result should be 10 as e.g. in
SQL> select * from xmltable('let $str := "AAAAARAMAAAAKRISHNAAAA"
                        let $search := "AA"
                        for $i in 1 to string-length($str)
                          where substring($str, $i, string-length($search)) = $search
                          return substring($str, $i, string-length($search))' columns x varchar2(10) path '.')
X
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
10 rows selected.Matter of definition I suppose .... ;)
btw. regexp_count also yields 6:
SQL> select regexp_count('AAAAARAMAAAAKRISHNAAAA', 'AA') x from dual
         X
         6
1 row selected.

EDGE being used in 3G area. How many other people see this??

I'm just trying to get a feel for how many other people see this.
In the last 6 weeks or so, twice my phone has switched from 3G to EDGE when i'm in a strong 3G area. Yesterday it did it just as I was leaving work and my iPhone stayed on EDGE all the way back home, when I know that the area in question is fully covered by 3G (and my iPhone normally says 3G). Later at home I went to use the phone and noticed it had finally switched back to 3G instead of EDGE.
Is this an area issue with AT&T getting overloaded? Is this a bug in the iPhone software? Anybody else experience this periodically?
Mark.

First off, it could either be an issue with AT&T's network being overloaded so it switched you to Edge, or it could be a bug in the iPhone software.
Second, are you measuring the signal strength by how many bars the iPhone shows or by the dbm numbers? The dbm numbers show the actual signal strength and the bars don't. The iPhone could have a horrible signal and still show you 3-5 bars. To see the actual dbm numbers, you have to go into the phone feature and type in "star12345#3001#star" and hit send (be sure to place the * in place of the word star). Once you do that you will enter test mode and you will notice that there are numbers in the top left instead of the bars. The numbers range from (this is not the exact range because I don't know) -55 to -117. The lower the number the stronger signal you have, once you start hitting -100 your signal is getting pretty weak. If you want to continually be able to see the dbm numbers you have to force quit out of the field test mode. If you are on 3.x firmware you have to hold the sleep button until the power off slider appears, let go of the sleep button and then hold down the home button. Once the app closes you can now tap on the top left and switch between bars and dbm numbers.

How Many Objects Are Selected

How can I tell how many objects are selected when I draw a selection marque around multiple objects?

Open the Document Info Palette.
Find its secret little flyout menu.
Select from that menu "Objects".
Let go.
Then go to that same menu all over again and select "Selection Only".
Scroll through the list and sum the quantities shown. Except be careful not to include the count of "All Text Objects" with the counts of "Point Type Objects", "Area Type Objects", and "Type On A Path Objects".
Repeat those steps every time you start a new work session in AI, because AI's palettes can't remember the way you set them between launches.
How could you have overlooked that intuitive and straightforward routine?
JET

Hi, I'm new to using mac laptop, i just got one 1 month a go, i was downloading adobe flash player and it asked me for a password for the computer and i never created one, how do i over pass this situation?

Hi, I'm new to using mac laptop, i just got one 1 month a go, i was downloading adobe flash player and it asked me for a password for the computer and i never created one, how do i over pass this situation?

It is asking for your computer administrator account password to make system changes. You "should" have an administrator account password.
HTH

How many objects exist in this situation?

Similar Messages

Maybe you are looking for