"What are anonymous local variables."

What are anonymous local variables and what are anonymous classes in java . If possible give one working example using anonymous classes and anonymous local variables .

What are anonymous local variables and what areYou tell me. I never heard of such a thing.
anonymous classes in java . If possible give oneClasses being declared without actually giving them a name. Sort of ugly.
void myMethod() {
ActionListener al = new ActionListener() { // Anonymous inner class
public void ActionPerformed(ActionEvent e) {
doMAgic();
this.add(al);
}

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OBIEE 11g, BI Apps EBS: What are default security variables and Init Block

Hi,
We are implementing BI Apps 7.9.6.3 [OBIEE 11.1.1.1.5 with EBS modules]. Out of the box RPD and mappings.
There are many VARIABLES and INIT BLOCKS in the RPD. Some of them are mainly for Siebel, Jd Edwards etc.
I need to know what are the default variables and Init Block configures in RPD. Also it will be highly appreciated if anyone can point out what segments we should configure if we need to implement security with simple database table authentication with SSO?
Thanks in advance.

You should review this doc for the options for EBS/OBIA security:
http://docs.oracle.com/cd/E20490_01/bia.7963/e19042.pdf
If helpful, pls mark as correct or helpful.

What are the systems variables in oracle

Hai All
In oracle what is called system variable and types of system variables
Good answer hepls me
Thanks & Regards
Srikkanth.M

SET System Variable Summary
Source:http://download.oracle.com/docs/cd/B19306_01/server.102/b14357/ch12040.htm
Oracle environment variables
The following environment variables are valid for Oracle::
ORACLE_HOME
ORACLE_BASE (optional)
ORA_NLS (optional)
NLS_LANG (optional)
TNS_ADMIN (optional)
Source:http://publib.boulder.ibm.com/infocenter/db2luw/v9/index.jsp?topic=/com.ibm.websphere.ii.foundation.conn.fw.orc.doc/configuring/iiylsorcenvvars.html
ORACLE_SID is the name of the database instance that you are using.
T2KDEV is set to the type of terminal you are using; sun if you are using openwindows; xsun if you are using X windows.
TERM is set to the type of terminal you are using. Note: If you are using openwindows, you may have to redefine the variable TERM to sun (instead of cmd-sun) and you should execute ORACLE from a shelltool.
TWO_TASK is set to the location where ORACLE server can be found and will normally be the name of the database instance. This variable helps simplify the command line for starting ORACLE tools.
Source:http://ugweb.cs.ualberta.ca/~c391/manual/chapt3.html
HTH
Girish Sharma
Edited by: Girish Sharma on Mar 3, 2010 9:16 AM
Link and Text added.

Are all local variables indexed consecutively?

Dear All,
In JVM, each frame contains an array of variables addressed by indexing. I am wondering if all local variables must be stored consecutively in the array.
For example, is it possible for this scenario to happen:
The length of the local variable array is 10, and a compiler translates 3 local variables of type Object to be located at index 3, 5, and 8 respectively (assuming no parameters in their enclosing method)?
The reason I need to know this is because I am using ASM to transform bytecode and need to introduce my own local variables. If all local variables' indices must be consecutive, I can get the max. number of locals (3 in the above example) of the original method and give my new locals indices starting from 4, ... But if they are not consecutively indexed, I have to use other ways.
Your help is much appreciated,
-- Sunny

Therefor my other question is: does max_locals
represent the length of the local variable array, or
does it mean the number of local variables that are
actually exist in the array? Thanks again.It gives the number of local variables in the local variable array but long and double are each considered to reserve two local variables and contribute two units toward the max_locals value.

Can TestStand 2.0.1 store/compare strings (local variables, strings in *.ini files) as unicode strings?

Can TestStand 2.0.1 store/compare strings (local variables, e.t.c) as unicode strings? If so, how can I tune TS to do it? Is there built-in support for such strings in newer versions of TS? I've not found sufficient information on the matter at the DevZone Forums.

Hi Paul,
Try this example, I'm sure I downloaded this from NI website.
This just reads keys from an INI file but you can also write to an ini file by using the appropiate functions in the dll.
Hope this helps
Regards
Ray Farmer
Regards
Ray Farmer
Attachments:
ReadIniFile.seq ‏17 KB
IOWrite.ini ‏1 KB

Activity Reports: What are anonymous users?

Hi All
I have created activity reports to monitor the number of hits in portal. It shows up 2 categories of users. One is Authenticated and the other is Anonymous. The number of Anonymous users in the report are too many, can you experts please explain me in detail about the Anonymous users.
Thank you
Best Regards
Ramamoorthy D

Anonymous users are the users who enter in to portal without porper authorization, means un-registered users.
you can get clear information from the note 518383
regards
nag

What are the environment variables called in Java? How is one read?

I've looked everyone online and I can't find a straight answer. Can someone help me out?

You mean the system properties?
Here's an example:System.out.println(System.getProperty("java.version"));All of the can be found here:
http://java.sun.com/docs/books/tutorial/essential/system/properties.html

Can't see 'Local Variables' while debugging in Sun Studio 11

I am debugging a C/C++ application built with Sun Studio 11 running on Solaris 10. I load the application as always, set a breakpoint and run. The debugger stops at the assigned breakpoint as expected.
The issue is that at this point there are no local variables displayed in the local variables pane.
I have tried restarting SS11, rebuilding, etc...
This is the first time I have seen this happen.
Does anyone else have an idea what is wrong?

Does adding a particular variable to Watch view help? (it can be done by typing "display <variable>" in dbx command line).
You can also try erasing (or better moving to a temporary location) all Sun Studio settings like this:
mv -f ~/.sunstudio /tmpand start debugging session again.

Just 'Copy-Paste' local variables

Hi
Is it possible to copy-paste a diagram area containing local variables without creating new objects on the interface ?
Thanks
Gregory
Solved!
Go to Solution.

Use control-drag instead of copy and paste.
Use your mouse to select the item(s) to be copied.
Hold down the control (Ctrl) key and drag the item(s) to the new location.
If you also hold the Shift key down during the move - the items stay aligned.
To move the item(s) to another diagram you don't even have to hold the shift key down.
steve
Help the forum when you get help. Click the "Solution?" icon on the reply that answers your
question. Give "Kudos" to replies that help.

What is difference between local variable and property node ?

What is difference between local variable and property node ?
" 一天到晚游泳的鱼"
[email protected]
我的个人网站：LabVIEW——北方客栈 http://www.labview365.com
欢迎加入《LabVIEW编程思想》组——http://decibel.ni.com/content/groups/thinking-in-labview

To make things clear, here are two small examples that show how nasty locals and value properties can be to the naive programmer.
- Open the diagram of the race condition.vi before running it and try to predict what will be the values of the two counters after the third run.
- Use the Compare Locals Properties and Wires.vi to find out how slow locals and value properties can be (times 1000+).
This being demonstrated, I must add that I use globals and value properties quite often, because they are often very convenient
Chilly Charly (aka CC)
E-List Master - Kudos glutton - Press the yellow button on the left...
Attachments:
Race condition.vi ‏9 KB
Compare Locals Properties and Wires.vi ‏18 KB

Catch-22: need to assign a local variable within an anonymous class

static boolean showMessage(Window parent, String button0, String button1)
    throws HeadlessException {
          final Window w = new Window(parent);
          Panel p = new Panel(new GridBagLayout());
          final Button b[] = new Button[]{new Button(button0), (button1 != null) ? new Button(button1) : (Button)null};
          boolean rval[]; //tristate: null, true, false
          w.setSize(100, 50);
          w.setVisible(true);
          //add b[0
          gbc.fill = GridBagConstraints.HORIZONTAL;
          gbc.gridx = 0;
          gbc.gridy = 3;
          p.add(b[0], gbc);
          //add b[1]
          if (button1 != null) {
               gbc.fill = GridBagConstraints.HORIZONTAL;
               gbc.gridx = 1;
               gbc.gridy = 3;
               p.add(b[1], gbc);
          w.add(p);
          w.pack();
        w.setVisible(true);
        //actionListener for button 0
          b[0].addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                         if (e.getSource() == b[0]) {
                              w.setVisible(false);
                              rval = new boolean[1];
                              rval[0] = true;
          //actionListener for button 1
          if (button1 != null) {
               b[1].addActionListener(new ActionListener() {
                         public void actionPerformed(ActionEvent e) {
                              if (e.getSource() == b[1]) {
                                   w.setVisible(false);
                                   rval = new boolean[1];
                                   rval[0] = false;
        while (true) {
             try {
                  if (rval[0] == true || rval[0] == false) //should trigger NullPointerException
                       return rval[0];
             } catch (NullPointerException e) { }
     }catch-22 is at
rval = new boolean[1];
rval = false;javac whines: "local variable rval is accessed from within inner class; needs to be declared final"
How do I assign to rval if it's declared final?
Or at the very least, how do I get rid of this error (by all means, hack fixes are okay; this is not C/C++, I don't have to use sanity checks)?
I'm trying to make a messagebox in java without using JOptionPane and I'm trying to encapsulate it in one method.
And I'm far too lazy to make a JNI wrapper for GTK.

dcminter wrote:
How do I assign to rval if it's declared final?You don't and you can't. You're not allowed to assign to the local variable of the outer class for extremely good reasons, so forget about trying.
Or at the very least, how do I get rid of this errorIf you don't want the side effect, then just use an inner class variable or a local variable.
If you want the side effect then use a named class and provide it with a getter and setter.
Finally, in this specific case because you're using an array object reference, you could probably just initialise the array object in the outer class. I.e.
// Outer class
final boolean[] rval = new boolean[1];
// Anonymous Inner class
rval[0] = true; // No need to intialize the array.
I declared it as an array so that it would be a tristate boolean (null, true, false) such that accessing it before initialization from the actionPerformed would trigger a NullPointerException.
Flowchart:
is button pressed? <-> no
|
V
Yes->set and return
Is there a way to accomplish this without creating a tribool class?

What are the Advantages & Disadvantages of Global Variable at Package Level

Dear Expprts
Please tell me,
What is mean by Global Variable?
What are the Advantages and Disadvantages of Global Variable at Package Level against Private Variable?

HI
GLOBAL VARIABLE UR USE ANY BLOCK IN PLSQL
BUT LOCAL VARIABLE USED ONLY THERE THEY DECLARE.
REGARDS
MOHAMMADI

What are the opcodes that put vars on the local frame array? Remove them?

Does anyone know of a reference that lists all the opcodes that put a local variable in the local frame array (like ASTORE, BIPUSH, etc) and all the ones that remove them (like POP, ALOAD, etc)?

BIPUSH doesn't affect the frame, it pushes a value onto the operand stack. The distinction may be subtle, but it's
important since the JVM is a stack-based architecture (in other words, if you don't make the distinction, than your
list contains [almost] all of the JVM opcodes).You're right. So then, what exactly are POP, DUP, etc doing? Are they taking from the frame?First thing to remember is that the frame and operand stack are logically different: the frame contains method parameters and local variables, while the operand stack is used for intermediate results. They may be implemented using a single processor stack (in X86 terms, the BP register would point to the start of the frame, while pushes and pops would modify the SP), but don't have to be. I think the JVM spec even talks about storing frames in the heap.
Here's an example:
public static int foo(int a, int b)
    int c = a + b;
    int d = (c + c) * 5;
    return d;
}Running javap -c to show the bytecodes, we get this:
public static int foo(int, int);
Code:
   0:   iload_0
   1:   iload_1
   2:   iadd
   3:   istore_2
   4:   iload_2
   5:   iload_2
   6:   iadd
   7:   iconst_5
   8:   imul
   9:   istore_3
   10: iload_3
   11: ireturnThe two method parameters, a and b, are stored in the frame in slot 0 and 1 (if this were an instance method, slot 0 would contain "this"). They get pushed onto the stack using the iload opcode (the normal version of this opcode takes a second byte index into the frame; to minimize code size, the JVM has alternate versions of most frame-access opcodes that are hardcoded for a specific low-numbered slots).
After the loads, the stack will contain the values held in b and a; the iadd instruction adds these together, leaving the result on the stack. The istore_2 removes the topmost value from the operand stack, and stores it in the frame (in the slot assigned to variable "c").
To your question about dup and so forth, I was hoping to demonstrate that with the repeated reference to variable "c"; instead, the compiler translated that into the two iload operations (opcodes 4 and 5). I suppose it makes sense, but it shows just how little optimization the compiler attempts to do -- instead, it relies on Hotspot being smart enough to optimize hardware accesses.
The iconst_5 opcode is another example of something that affects the operand stack but not the frame: it pushes a hardcoded constant value onto the stack.
It's also another case where the JVM defines several opcodes that do the same thing: the iconst_n for values -1 to 5, bipush for values that are outside this range but still smaller than a byte, sipush for values that will fit into a short, and ldc for everything else. The goal is efficient code generation: 1-3 bytes for most of the integer values that you're likely to load. The ldc opcode is interesting in its own right: it does a lookup into a per-class table to find the value to push. Not very efficient in terms of CPU cycles and memory access (although it can be inlined by Hotspot), but again efficient from a bytecode perspective: if you're loading a large constant, there's at least a chance that you'll be loading it multiple times.
Chapter 6 of the VM spec lists all the opcodes, and I seem to remember groupings by purpose: http://
java.sun.com/docs/books/jvms/second_edition/html/Instructions.doc.htmlUnfortunately, it doesn't quite do that. They're mostly all in the same place on the summary page but not quite all. (For example, the array ones were in a separate place) And the link you posted lists them only alphabetically.Yeah, but jverd posted the link to section 3.11, which groups the opcodes. You probably want 3.11.2: http://java.sun.com/docs/books/jvms/second_edition/html/Overview.doc.html#6348
Which leads to the more interesting question: why?

What are the best practices to use GLOBAL Variables

Hi,
Please guide how Global Variables can be declared and how they can be initialized.
Further please guide what are the impacts of Global Variables(if any) on the memory of CLIENT or SERVER, if they are not initialized or freed up after usage.
Thanks.
Regards.

spilgrim wrote:
My preference is not to use them and to use parameters or package variables. There is not real control on globals so you can end up with an applicatios that has lots of them that are only used once but persist for the user session.I second that. I don't know how often I searched for bugs caused by typos in the names of global variables. Plus the fact that they are only of datatype VARCHAR2. If you are using share_library_data you could also use Package globals in a forms library to share data between called and calling forms. Or you could use a database package...
cheers

What are Parameters? How are they differenet from Variables? Why can't we use variables for passing data from one sequnece to another? What is the advantage of using Parameters instead of Variables?

Hi All,
I am new to TestStand. Still in the process of learning it.
What are Parameters? How are they differenet from Variables? Why can't we use variables for passing data from one sequnece to another? What is the advantage of using Parameters instead of Variables?
Thanks in advance,
LaVIEWan
Solved!
Go to Solution.

Hi,
Using the Parameters is the correct method to pass data into and out of a sub sequence. You assign your data to be passed into or out of a Sequence when you are in the Edit Sequence Call dialog and in the Sequence Parameter list.
Regards
Ray Farmer

"What are anonymous local variables."

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