Need help with compiler!
Hello, I have been working with C++ before, and the compiler is totaly different than java's. How do you compile code with java, how to you make the DOS Comand Prompt compile code, where do you even type code in java? I am new to java, and am lost, in c++ you typed the code in the processore/compiler/debugger bundle, how do you do it in java?
Thanx
| ) R (_) M R
Start with First Steps here:
http://java.sun.com/docs/books/tutorial/
You may also want to read here:
http://java.sun.com/learning/new2java/index.html
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Help visual basic users need help with compiling a .dll!!
I just need someone to compile this .dll for me please since i dont have a visual basic. Thanks in advance!
link: http://shrib.com/1Lso3eMG
It's an online notepad I used to compile a little script for something. Please and thank you!Hi,
Perhaps you can use this:
https://msdn.microsoft.com/en-us/vstudio/hh388573
As this question is not reporting an issue with the forums, I'll move this thread to the 'Where is the Forum For...?' forum.
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I need help with compiling different packages
I've just downloaded j2sdk1.4.0_03 and when i use
import TerminalIO.KeyboardReader;
it says : package TerminalIO does not exist;
and it also has a problem with KeyboardReader.
Please help me!The TerminalIO is not part of standard java classes. Some one must have given that to you, or needs to give it to you. It might be in a jar file. Without knowing what/where the TerminalIO package is, it is difficult to help you.
If the package is in a jar, then you need to include the jar in your Classpath when you compile. If it is not in a jar, then the directory that contains the TerminalIO directory needs to be in the Classpath.
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[SOLVED] Need help with Compiling to TM4C123glx with arm-none-eabi-gcc
Hello !
I was using the 'arm-none-eabi-gcc' package from 'comunity' on Arch Linux in order to compile some projects to my TI TM4C123gxl.
In order to test the compiler, I rebuild a pre-build example sent with the 'Tivaware' software package (qs-rgb). The compilation was smooth, but the final binary didn't run on the board. (about 14KB)
After that, I downloaded a toolchain from this website:
https://launchpad.net/gcc-arm-embedded
Which also ships an 'arm-none-eabi-gcc'.
The compilation with the toolchain above could generate a binary that could run on my board. (about 10KB)
At first, I thought it was a bug, and I was on my way to file a bug report. But then I remember that this toolchain can be build with several different options, so I need to ask:
Do your package have support to this target? (TI TM4C123glx)
Is there a difference between the two toolchains that I should have noticed?
Sorry if my questions are some obvious things. I have no much information about toolchain building.
If you need any more informations about this, I will be happy to send you.
If you prefer I open a bug report, I will be happy to do so.
Thank you!
Last edited by leonardo (2014-11-07 00:24:38)leonardo, here is completely untested patch that makes arm-none-eabi-gcc use newlib-nano instead of newlib. Get the PKGBUILD from ABS, apply the patch and rebuild the *-gcc. Let me know if it makes any difference.
The -nano project goal is provide smaller footprint in probably the reason of smaller binary with linaro toolchain.
Index: PKGBUILD
===================================================================
--- PKGBUILD (revision 121494)
+++ PKGBUILD (working copy)
@@ -8,6 +8,7 @@
pkgrel=1
#_snapshot=4.9-20140604
_newlibver=2.1.0
+_newlibnanover=2.1
pkgdesc='The GNU Compiler Collection - cross compiler for ARM EABI (bare-metal) target'
arch=(i686 x86_64)
url='http://gcc.gnu.org/'
@@ -18,12 +19,12 @@
options=(!emptydirs !strip staticlibs)
source=(ftp://gcc.gnu.org/pub/gcc/releases/gcc-$pkgver/gcc-$pkgver.tar.bz2
#ftp://gcc.gnu.org/pub/gcc/snapshots/$_snapshot/gcc-$_snapshot.tar.bz2
- ftp://sourceware.org/pub/newlib/newlib-$_newlibver.tar.gz
+ https://github.com/32bitmicro/newlib-nano-2/archive/newlib-nano-$_newlibnanover.zip
gcc-multilib.patch
gcc-no-exceptions.patch
libgloss-configure-fix.patch)
sha256sums=('d334781a124ada6f38e63b545e2a3b8c2183049515a1abab6d513f109f1d717e'
- '3e4d5ab9f0508942b6231b8ade4f8e5048cf92c96ed574c2bd6bd3320a599a48'
+ '51cdc44ff7821837701316e4145d48b2dc27e43713f88194f6f147c6f09651a9'
'998d1face674cc8d1af5bf28ded15caaaa18936a28f278123448f29555a07775'
'7f59b28475aa2018a7edfb81ea81444a6eb098fd3847d8e605809ae6fbeabde5'
'eac96c034d3d7d16080d9aef4749e4eda493563a3348e6a06f08e8a330b027ba')
@@ -36,7 +37,7 @@
prepare() {
# Apply configure fix from newlib CVS
- cd "$srcdir/newlib-$_newlibver/libgloss/arm"
+ cd "$srcdir/newlib-nano-2-newlib-nano-$_newlibnanover/libgloss/arm"
patch -Np0 -i "$srcdir/libgloss-configure-fix.patch"
autoreconf
@@ -47,8 +48,8 @@
patch -Np0 -i "$srcdir"/gcc-no-exceptions.patch
# Move newlib and libgloss to gcc source directory
- mv "$srcdir"/newlib-$_newlibver/newlib "$srcdir/$_basedir"
- mv "$srcdir"/newlib-$_newlibver/libgloss "$srcdir/$_basedir"
+ mv "$srcdir"/newlib-nano-2-newlib-nano-$_newlibnanover/newlib "$srcdir/$_basedir"
+ mv "$srcdir"/newlib-nano-2-newlib-nano-$_newlibnanover/libgloss "$srcdir/$_basedir"
# hack! - some configure tests for header files using "$CPP $CPPFLAGS"
sed -i "/ac_cpp=/s/\$CPPFLAGS/\$CPPFLAGS -O2/" "$srcdir"/$_basedir/{libiberty,gcc}/configure -
Need help with compile error: externally visible definition
I am getting the following error on compile:
"A file found in an source-path must have an externally
visible definition. If a definition in the file is meant to be
externally visible, please put the definition in a package."
Typically this would mean that an actionscript class file is
not placed in a package, but I am getting the error for a Custom
MXML ListItemRenderer component I created.
Does anyone have a clue why this would be happening? It
happened once before and mysteriously went away after I removed all
of the code in the file, saved it, pasted it back in and saved it
again. Unfortunately that is not working this time.
I would really appreciate any help.
Thanks,
shaunOK here it is, first i'll give u the Card.java file, it compiles i think:
public interface Card {
/** The four suites. */
public static final byte CLUB = 0, DIAMOND = 1, HEART = 2, SPADE = 2;
/** The suite of this card. */
public byte suite();
* Is 's' a valid suite?
* @param s a value to check to see if it is a valid suite.
* @return true iff 's' is a valid suite.
public boolean validSuite(byte s);
/** The thirteen standard cards. */
public static final byte ACE = -1, TWO = -2, THREE = -3, FOUR = -4,
FIVE = -5, SOX = -6, SEVEN = -7, EIGHT = -8, NINE = -9, TEN = -10,
JACK = -11, QUEEN = -12, KING = -13;
/** The face-value of this card */
public byte value();
* Is 'v' a valid face-value?
* @param v the value to check to see if it is a valid face-value.
* @return true iff 'v' is a valid face-value.
public boolean validValue(byte v);
* @param a_card the card to compare
* @return true iff the suite of this card is identical to the suite
* of <code>a_card</code>
public boolean sameSuiteAs(Card a_card);
* @param a_card the card to compare
* @return true iff the face value of this card is identical to the
* face value of <code>a_card</code>
public boolean sameFaceValueAs(Card a_card);
* @param a_card the card to compare
* @return true iff the face value of this card is strictly greater than
* the face value of <code>a_card</code>
public boolean greaterFaceValueThan(Card a_card);
* Whether this card has a greater value than <code>a_card</code> is
* determined by a given card game's rules.
* @param a_card the card to compare
* @return true iff this card has a great value than <code>a_card</code>
public boolean greaterValueThan(Card a_card);
* Two cards are equivalent if they are indistinguishable in a given
* card game's rules.
* @param a_card the card to compare
* @return true iff this card and <code>a_card</code> are indistinguishable
public boolean equivalentTo(Card a_card);
} -
I need help with compiler HELP
I have tried compiling with Kawa and JBuilder, but both have problems. Jbuilder wont support graphics, and Kawa gives me an error when i compile something with a command like "g.setColor(Color.green)"
the error is
c:\jdk1.3.1_11\bin\Chapter13\Listing1301\com\burdbrain\drawings\Drawing.java:22:
cannot resolve symbol symbol : variable BLUE
location: class java.awt.Color
g.setColor(java.awt.Color.BLUE);
Does anyone have any experience with Kawa, or have any tips about graphics or anything. I am very new to Java
Thanxc:\jdk1.3.1_11\bin\Chapter13\Listing1301\com\burdbrain\
rawings\Drawing.java:22:
cannot resolve symbol symbol : variable BLUE
location: class java.awt.Color
g.setColor(java.awt.Color.BLUE);Color.BLUE didn't exist pre java 1.4 or thereabouts so it won't compile under jdk1.3.1
you can change it to Color.blue instead and that should work fine
(they added the capitalized names because everyone else in the entire world uses capitalized names for constants) -
'class' or 'interface' expected
public static int getNewAmount()
^
Can anyone tell me what to do?
Thx.I solved that problem. Thanks.
But now I have another error problem.
Exception in thread "main" java.lang.NumberFormatException: n
at java.lang.Integer.parseInt(Integer.java:414)
at java.lang.Integer.parseInt(Integer.java:463)
at MyInput.readInt(MyInput.java:27)
at SalaryComputation3.getJobClass(SalaryComputation3.java:85)
at SalaryComputation3.main(SalaryComputation3.java:61) -
Need help with a currently "in-use" form we want to switch to Adobes hosting service
Hi, I am in desperate need of help with some issues concerning several forms which we currently use a paid third party (not Adobe) to host and "re-distribute through email"...Somehow I got charged $14.95 for YOUR service, (signed up for a trial, but never used it)..and now I am paying for a year of use of the similar service which Adobe is in control of. I might want to port my form distribution through Adobe in the hopes of reducing the errors, problems and hassles my customers are experiencing when some of them push our "submit button". (and I guess I am familiar with these somewhat from reading what IS available in here, and I also know that, Adobe is working to alleviate some of these " submit" issues, so let's don't start by going backwards, here) I need solutions now for my issues or I can leave it as is, If Adobe's solution will be no better for my end users...
We used FormsCentral to code these forms and it works for the most part (if the end-user can co-operate, and thats iffy, sometimes), but I need help with how to make it go through your servers (and not the third party folks we use now), Not being cruel or racist here, but your over the phone "support techs" are about horrible & I cannot understand them or work with any of them, so I would definitely need someone who speaks English and can understand the nuances of programming these forms, to please contact me back. (Sorry, but both those attributes will be required to be able to help me, so, no "newbie-interns" or first week trainees are gonna cut it).... If you have anyone who fits the bill on those items and would be willing to help us, please contact me back at your earliest convenience. If we have to communicate here, I will do that & I can submit whatever we need to & to whoever we need to.
I need to get this right and working for the majority of my users and on any platform and OS.
You may certainly call me to talk about this, and I have given my number numerous times to your (expletive deleted) time wasting - recording message thingy. So, If it's not available look it up under [email protected]
(and you will probably get right to me, unlike my and I'm sure most other folks', "Adobe phone-in experiences")
Thank You,
Michael Corman
VinylCouture
Phenix City, Alabama 36869Well, thanks for writing back...just so you know...I started using Adobe products in 1987, ...yeah...back then...like Illustrator 1 & 9" B&W Macs ...John Warnock's Helvetica's....stuff like that...8.5 x 11 LaserWriters...all that good stuff...I still have some of it working on a mac...much of it was stuff I bought. some stuff I did not...I'm not a big fan of this "cloud" thing Adobe has foisted upon the creatives of the world...which I'm sure you can tell...but the functionality and usefulness of your software can not be disputed, so feel free to do whatever we will continue to pay for, ...I am very impressed with CC PS on the 64 bit PC and perhaps I will end up paying you the stipend that you demand for the other services.
So I guess that brings us to our problem.. a few years back and at the height of the recession and near bankruptcy myself, I was damn lucky and hit on something and began a small arts and crafts supply service to sell my products online to a very "niche market" ...I had a unique product and still sell that product (plus others) online...My website is www.vinylcouture.com...Strange? Yes...but there is a market it seems, for everything now, and this is the market I service...Catagorically, these are 99%+ women that use these "adhesive, sticky backed vinyl products" to make different "craft items" that are just way too various and numerous to go into... generally older women, women who are computer illiterate for the most part...and all this is irrelevant to my problem, but I want you to have every bit of background on this and especially the demographic we are dealing with, so we can get right to the meat of the problem.
OK...So about two years ago, I decided to offer a "plain sheet" product of a plain colored "stick back" vinyl... it is available in multiple quantities of packs ( like 5 pieces, 10 pieces, 15 pieces, in a packi & so on)...and if you are still on my site.. go to any "GO RIGHT TO OUR ORDER PAGE" button, scroll down a little...and then to the "PLAIN VINYL" section...you will see the Weebly website order process.) You can back out from here, I think,..but, anyway this product is available in 63 colors + or - a few. So then the problem is, how do they select their individual colors within that (whatever) pack?... .
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A nice gentleman named Joseph Silva helped us program the thing to go to his servers and back out. Please dont hassle them...I need them...for now..it basically does work...try it...you should get back a copy of the form that you filled out...good luck however, if you're on MAC OSX or similar...
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OK so far so good......In our shop, once Grandma buys a 10 pack (or whatever), Only then she gets to the link on her receipt page ro the relevant "selection form" ,(this prevents "Filling and Sending" with "no order" and "no payment", another early problem we had)... which they can click on and it will usually download and open up on their device if all goes well...Then our little form is supposed to be fillable and is supposed to ADD UP all the quantities, so grandma knows how many she is buying and so forth right on the fly, and even while she changes her mind..., and IT'S LARGE so grandma can see it, and then it TOTALS it all up for them, ( cause remember, they can NOT add).., except there is a programming bug (mouse-click should be a mouse-up probably or something..) which makes you click in the blank spaces to get to a correct TOTAL...about 70-80% of our customers can enable all these features and usually the process completes without problems for them especially on PC's running Windows OS and Acrobat Reader X or XI...at least for most... Unfortunately it is still not the "seamless process" I would like or had envisioned for the other folks out there that do have trouble using our form.... Many folks report to us the following issues that we know of. First of all it takes too much time to load up...We know its HUGE...is there anyway that you can see, to streamline this thing? I would love for it to be more compact...this really helps on the phones and pads as I'm sure you well know.
Some just tell us,"it WON'T work"....I believe this is because they are totally out of it and dont even have Adobe Reader on their machine, & don't know how to get it ( yes, we provide the links).....or it's some ancient version....no one can stop this one...
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Ok, so that should keep you busy for a minute and we can start out with those problems...but the next thing is, how can I take advantage of YOUR re-direct & hosting services?, And will it get rid of the error messages, and the slowness, and the iOS incompatibilities ? (amazingly, the last iOS Reader version worked almost OK.. but the newest version doesnt seem to work with my form on my iphone4) If it will enable any version of the iOS to send my form correctly and more transparently, then it might be worth the money...$14.95 a MONTH you say. hmmmmm...Better be good.
Another problem is, that I really don't need 5000 forms a month submitted. I think its like 70-100 or less....Got any plans for that? Maybe I'm just not BIG ENOUGH to use Adobe's services, however in this case, I really don't care whose I do use as long as the product works most correctly for my customers as well as us. Like I said, If I'm doing the best I can, I won't change anything, and still use the other third party, If Adobe has a better solution, then i'm all for that as well. In the meantime, Thanks for any help you can provide on this...
Michael Corman
VinylCouture.com
(706) 326-7911 -
Need help with Berkeley XML DB Performance
We need help with maximizing performance of our use of Berkeley XML DB. I am filling most of the 29 part question as listed by Oracle's BDB team.
Berkeley DB XML Performance Questionnaire
1. Describe the Performance area that you are measuring? What is the
current performance? What are your performance goals you hope to
achieve?
We are measuring the performance while loading a document during
web application startup. It is currently taking 10-12 seconds when
only one user is on the system. We are trying to do some testing to
get the load time when several users are on the system.
We would like the load time to be 5 seconds or less.
2. What Berkeley DB XML Version? Any optional configuration flags
specified? Are you running with any special patches? Please specify?
dbxml 2.4.13. No special patches.
3. What Berkeley DB Version? Any optional configuration flags
specified? Are you running with any special patches? Please Specify.
bdb 4.6.21. No special patches.
4. Processor name, speed and chipset?
Intel Xeon CPU 5150 2.66GHz
5. Operating System and Version?
Red Hat Enterprise Linux Relase 4 Update 6
6. Disk Drive Type and speed?
Don't have that information
7. File System Type? (such as EXT2, NTFS, Reiser)
EXT3
8. Physical Memory Available?
4GB
9. Are you using Replication (HA) with Berkeley DB XML? If so, please
describe the network you are using, and the number of Replica’s.
No
10. Are you using a Remote Filesystem (NFS) ? If so, for which
Berkeley DB XML/DB files?
No
11. What type of mutexes do you have configured? Did you specify
–with-mutex=? Specify what you find inn your config.log, search
for db_cv_mutex?
None. Did not specify -with-mutex during bdb compilation
12. Which API are you using (C++, Java, Perl, PHP, Python, other) ?
Which compiler and version?
Java 1.5
13. If you are using an Application Server or Web Server, please
provide the name and version?
Oracle Appication Server 10.1.3.4.0
14. Please provide your exact Environment Configuration Flags (include
anything specified in you DB_CONFIG file)
Default.
15. Please provide your Container Configuration Flags?
final EnvironmentConfig envConf = new EnvironmentConfig();
envConf.setAllowCreate(true); // If the environment does not
// exist, create it.
envConf.setInitializeCache(true); // Turn on the shared memory
// region.
envConf.setInitializeLocking(true); // Turn on the locking subsystem.
envConf.setInitializeLogging(true); // Turn on the logging subsystem.
envConf.setTransactional(true); // Turn on the transactional
// subsystem.
envConf.setLockDetectMode(LockDetectMode.MINWRITE);
envConf.setThreaded(true);
envConf.setErrorStream(System.err);
envConf.setCacheSize(1024*1024*64);
envConf.setMaxLockers(2000);
envConf.setMaxLocks(2000);
envConf.setMaxLockObjects(2000);
envConf.setTxnMaxActive(200);
envConf.setTxnWriteNoSync(true);
envConf.setMaxMutexes(40000);
16. How many XML Containers do you have? For each one please specify:
One.
1. The Container Configuration Flags
XmlContainerConfig xmlContainerConfig = new XmlContainerConfig();
xmlContainerConfig.setTransactional(true);
xmlContainerConfig.setIndexNodes(true);
xmlContainerConfig.setReadUncommitted(true);
2. How many documents?
Everytime the user logs in, the current xml document is loaded from
a oracle database table and put it in the Berkeley XML DB.
The documents get deleted from XML DB when the Oracle application
server container is stopped.
The number of documents should start with zero initially and it
will grow with every login.
3. What type (node or wholedoc)?
Node
4. Please indicate the minimum, maximum and average size of
documents?
The minimum is about 2MB and the maximum could 20MB. The average
mostly about 5MB.
5. Are you using document data? If so please describe how?
We are using document data only to save changes made
to the application data in a web application. The final save goes
to the relational database. Berkeley XML DB is just used to store
temporary data since going to the relational database for each change
will cause severe performance issues.
17. Please describe the shape of one of your typical documents? Please
do this by sending us a skeleton XML document.
Due to the sensitive nature of the data, I can provide XML schema instead.
18. What is the rate of document insertion/update required or
expected? Are you doing partial node updates (via XmlModify) or
replacing the document?
The document is inserted during user login. Any change made to the application
data grid or other data components gets saved in Berkeley DB. We also have
an automatic save every two minutes. The final save from the application
gets saved in a relational database.
19. What is the query rate required/expected?
Users will not be entering data rapidly. There will be lot of think time
before the users enter/modify data in the web application. This is a pilot
project but when we go live with this application, we will expect 25 users
at the same time.
20. XQuery -- supply some sample queries
1. Please provide the Query Plan
2. Are you using DBXML_INDEX_NODES?
Yes.
3. Display the indices you have defined for the specific query.
XmlIndexSpecification spec = container.getIndexSpecification();
// ids
spec.addIndex("", "id", XmlIndexSpecification.PATH_NODE | XmlIndexSpecification.NODE_ATTRIBUTE | XmlIndexSpecification.KEY_EQUALITY, XmlValue.STRING);
spec.addIndex("", "idref", XmlIndexSpecification.PATH_NODE | XmlIndexSpecification.NODE_ATTRIBUTE | XmlIndexSpecification.KEY_EQUALITY, XmlValue.STRING);
// index to cover AttributeValue/Description
spec.addIndex("", "Description", XmlIndexSpecification.PATH_EDGE | XmlIndexSpecification.NODE_ELEMENT | XmlIndexSpecification.KEY_SUBSTRING, XmlValue.STRING);
// cover AttributeValue/@value
spec.addIndex("", "value", XmlIndexSpecification.PATH_EDGE | XmlIndexSpecification.NODE_ATTRIBUTE | XmlIndexSpecification.KEY_EQUALITY, XmlValue.STRING);
// item attribute values
spec.addIndex("", "type", XmlIndexSpecification.PATH_EDGE | XmlIndexSpecification.NODE_ATTRIBUTE | XmlIndexSpecification.KEY_EQUALITY, XmlValue.STRING);
// default index
spec.addDefaultIndex(XmlIndexSpecification.PATH_NODE | XmlIndexSpecification.NODE_ELEMENT | XmlIndexSpecification.KEY_EQUALITY, XmlValue.STRING);
spec.addDefaultIndex(XmlIndexSpecification.PATH_NODE | XmlIndexSpecification.NODE_ATTRIBUTE | XmlIndexSpecification.KEY_EQUALITY, XmlValue.STRING);
// save the spec to the container
XmlUpdateContext uc = xmlManager.createUpdateContext();
container.setIndexSpecification(spec, uc);
4. If this is a large query, please consider sending a smaller
query (and query plan) that demonstrates the problem.
21. Are you running with Transactions? If so please provide any
transactions flags you specify with any API calls.
Yes. READ_UNCOMMITED in some and READ_COMMITTED in other transactions.
22. If your application is transactional, are your log files stored on
the same disk as your containers/databases?
Yes.
23. Do you use AUTO_COMMIT?
No.
24. Please list any non-transactional operations performed?
No.
25. How many threads of control are running? How many threads in read
only mode? How many threads are updating?
We use Berkeley XML DB within the context of a struts web application.
Each user logged into the web application will be running a bdb transactoin
within the context of a struts action thread.
26. Please include a paragraph describing the performance measurements
you have made. Please specifically list any Berkeley DB operations
where the performance is currently insufficient.
We are clocking 10-12 seconds of loading a document from dbd when
five users are on the system.
getContainer().getDocument(documentName);
27. What performance level do you hope to achieve?
We would like to get less than 5 seconds when 25 users are on the system.
28. Please send us the output of the following db_stat utility commands
after your application has been running under "normal" load for some
period of time:
% db_stat -h database environment -c
% db_stat -h database environment -l
% db_stat -h database environment -m
% db_stat -h database environment -r
% db_stat -h database environment -t
(These commands require the db_stat utility access a shared database
environment. If your application has a private environment, please
remove the DB_PRIVATE flag used when the environment is created, so
you can obtain these measurements. If removing the DB_PRIVATE flag
is not possible, let us know and we can discuss alternatives with
you.)
If your application has periods of "good" and "bad" performance,
please run the above list of commands several times, during both
good and bad periods, and additionally specify the -Z flags (so
the output of each command isn't cumulative).
When possible, please run basic system performance reporting tools
during the time you are measuring the application's performance.
For example, on UNIX systems, the vmstat and iostat utilities are
good choices.
Will give this information soon.
29. Are there any other significant applications running on this
system? Are you using Berkeley DB outside of Berkeley DB XML?
Please describe the application?
No to the first two questions.
The web application is an online review of test questions. The users
login and then review the items one by one. The relational database
holds the data in xml. During application load, the application
retrieves the xml and then saves it to bdb. While the user
is making changes to the data in the application, it writes those
changes to bdb. Finally when the user hits the SAVE button, the data
gets saved to the relational database. We also have an automatic save
every two minues, which saves bdb xml data and saves it to relational
database.
Thanks,
Madhav
[email protected]Could it be that you simply do not have set up indexes to support your query? If so, you could do some basic testing using the dbxml shell:
milu@colinux:~/xpg > dbxml -h ~/dbenv
Joined existing environment
dbxml> setverbose 7 2
dbxml> open tv.dbxml
dbxml> listIndexes
dbxml> query { collection()[//@date-tip]/*[@chID = ('ard','zdf')] (: example :) }
dbxml> queryplan { collection()[//@date-tip]/*[@chID = ('ard','zdf')] (: example :) }Verbosity will make the engine display some (rather cryptic) information on index usage. I can't remember where the output is explained; my feeling is that "V(...)" means the index is being used (which is good), but that observation may not be accurate. Note that some details in the setVerbose command could differ, as I'm using 2.4.16 while you're using 2.4.13.
Also, take a look at the query plan. You can post it here and some people will be able to diagnose it.
Michael Ludwig -
Need help with my graphic calculator!!!
Hello everybody!! I need help with my little program I made.... The problem is that I am unable to use to calculate but it is possible to compile the code!! What should I do?? Thanks in advance.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
class Aritmetik extends JFrame implements ActionListener{
private JLabel l1 = new JLabel("Tal1: ", JLabel.LEFT);
private JLabel l2 = new JLabel("Tal2: ", JLabel.LEFT);
private JLabel l3 = new JLabel("Resultat",JLabel.LEFT);
private JLabel l4 = new JLabel(" ", JLabel.RIGHT);
private JTextField t1 = new JTextField(" ",10);
private JTextField t2 = new JTextField(" ",10);
private JButton b1 = new JButton("+");
private JButton b2 = new JButton("-");
private JButton b3 = new JButton("*");
private JButton b4 = new JButton("/");
public Aritmetik(){
Container v = getContentPane();
v.setLayout(new GridLayout(5,2));
v.add(l1);
v.add(t1);
v.add(l2);
v.add(t2);
v.add(b1);
v.add(b2);
v.add(b3);
v.add(b4);
v.add(l3);
v.add(l4);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
b4.addActionListener(this);
pack();
setVisible(true);
setDefaultCloseOperation(EXIT_ON_CLOSE);
public void actionPerformed(ActionEvent e){
int tal1 = Integer.parseInt(t1.getText());
int tal2 = Integer.parseInt(t2.getText());
if(e.getSource() == b1){
if(t1.getText().equals("") || t2.getText().equals(""))
JOptionPane.showMessageDialog(null, "Mata in tal!");
else{
l3.setText("Resultat ");
l4.setText(" " + (tal1+tal2));
else if(e.getSource() == b2){
int sub = tal1-tal2;
l4.setText(" " + (sub));
else if(e.getSource() == b3){
int multi = tal1*tal2;
l4.setText(" " + (multi));
else if(e.getSource() == b4){
int div = tal1/tal2;
l4.setText(" " + (div));
public static void main(String[] arg){
Aritmetik A =new Aritmetik();Here is your problem:
public void actionPerformed(ActionEvent e){
int tal1 = Integer.parseInt(t1.getText().trim()); // add the trim()
int tal2 = Integer.parseInt(t2.getText().trim()); // add the trim()
if(e.getSource() == b1){
if(t1.getText().equals("") || t2.getText().equals(""))
JOptionPane.showMessageDialog(null, "Mata in tal!");
else{
l3.setText("Resultat ");
l4.setText(" " + (tal1+tal2));
}... Better ...
public void actionPerformed(ActionEvent e) throws NumberFormatException {
String tala = t1.getText().trim();
String talb = t2.getText().trim();
if ( tala == null || "".equals(tala) || talb == null || "".equals(talb) ) {
JOptionPane.showMessageDialog(null, "Mata in tal!");
return();
int tal1 = Integer.parseInt(tala);
int tal2 = Integer.parseInt(talb);
if(e.getSource() == b1){
l3.setText("Resultat ");
l4.setText(" " + (tal1+tal2));
else if(e.getSource() == b2){
int sub = tal1-tal2;
l4.setText(" " + (sub));
else if(e.getSource() == b3){
int multi = tal1*tal2;
l4.setText(" " + (multi));
else if(e.getSource() == b4){
int div = tal1/tal2;
l4.setText(" " + (div));
}Message was edited by:
abillconsl -
Need help with a rudimentary program
I'm sort of new at this so i need help with a few things... I'm making a program to compile wages and i need answers with three things: a.) what are the error messages im getting meaning? b.) How can i calculate the state tax as 2% of my gross pay with the first $200 excluded and c.) how can i calculate the local tax as a flat $10 with $2 deducted for each dependant. any help is appreciated
Here is what i have so far:
public class WagesAsign1
public static void main(String[] args)
int depend=4;
double hrsWork=40;
double payRate=15;
double grossPay;
grossPay=payRate*hrsWork;
double statePaid;
double stateTax=2.0;
statePaid=grossPay*(stateTax/100);
double localPaid;
double localTax=10.0;
localPaid=grossPay*(localTax/100);
double fedPaid;
double fedTax=10.0;
double taxIncome;
fedPaid=taxIncome*(fedTax/100);
taxIncome=grossPay-(statePaid+localPaid);
double takeHome;
System.out.println("Assignment 1 Matt Foraker\n");
System.out.println("Hours worked="+hrsWork+" Pay rate $"+payRate+" per/hour dependants: "+depend);
System.out.println("Gross Pay $"+grossPay+"\nState tax paid $"+statePaid+"\nLocal tax paid $"+localPaid+"\nFederal tax paid $"+fedPaid);
System.out.println("You take home a total of $"+takeHome);
and these are the error messages so far:
WagesAsign1.java:23: variable taxIncome might not have been initialized
fedPaid=taxIncome*(fedTax/100);
^
WagesAsign1.java:29: variable takeHome might not have been initialized
System.out.println("You take home a total of $"+takeHome);
^edit: figured it out... please delete post
Message was edited by:
afroryan58 -
Hi!!
I urgently need help with this:
When I compile this in Flex Builder 3 it says: The element type 'mx:Application' must be terminated by the matching end-tag '</mx:Application>'.
but I have this end tag in my file, but when I try to switch from source view to desgin view it says, that: >/mx:Script> expected to terminate element at line 71, this is right at the end of the .mxml file. I have actionscript(.as) file for scripting data.
This is the mxml code to terminate apllication tag which I did as you can see:
MXML code:
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" backgroundGradientAlphas="[1.0, 1.0]" backgroundGradientColors="[#007200, #000200]" width="1024" height="768" applicationComplete="popolni_vse()">
<mx:HTTPService id="bazaMME" url="lokalnabaza/baza_MME_svn.xml" showBusyCursor="true" resultFormat="e4x"/>
<mx:Script source="dajzaj.as"/>
<mx:states>
<mx:State name="Galerije">
<mx:SetProperty target="{panel1}" name="title" value="Galerije MME"/>
<mx:SetProperty target="{panel2}" name="title" value="opis slik"/>
<mx:SetProperty target="{panel3}" name="title" value="Opis Galerije"/>
<mx:AddChild relativeTo="{panel1}" position="lastChild">
<mx:HorizontalList x="0" y="22" width="713.09863" height="157.39436" id="ListaslikGalerije"></mx:HorizontalList>
</mx:AddChild>
<mx:SetProperty target="{text1}" name="text" value="MME opisi galerij "/>
<mx:AddChild relativeTo="{panel1}" position="lastChild">
<mx:Label x="217" y="346" text="labela za test" id="izbr"/>
</mx:AddChild>
<mx:SetProperty target="{label1}" name="text" value="26. November 2009@08:06"/>
<mx:SetProperty target="{label1}" name="x" value="845"/>
<mx:SetProperty target="{label1}" name="width" value="169"/>
<mx:SetProperty target="{Gale}" name="text" value="plac za Galerije"/>
</mx:State>
<mx:State name="Projekti"/>
</mx:states>
<mx:MenuBar id="MMEMenu" labelField="@label" showRoot="true" fillAlphas="[1.0, 1.0]" fillColors="[#043D01, #000000]" color="#9EE499" x="8" y="24"
itemClick="dajVsebino(event)" width="1006.1268" height="21.90141">
<mx:XMLList id="MMEmenuModel">
<menuitem label="O nas">
<menuitem label="reference podjetja" name="refMME" type="check" groupName="one"/>
<menuitem label="reference direktor" name="refdir" type="check" groupName="one"/>
<menuitem label="Kontakt" name="podatMME" groupName="one" />
<menuitem label="Kje smo" name="lokaMME" type="check" groupName="one" />
</menuitem>
<menuitem type="separator"/>
<menuitem label="Galerija">
<menuitem label="Slovenija" name="galSvn" type="check" groupName="one"/>
<menuitem label="Nemčija" name="galDeu" type="check" groupName="one" />
</menuitem>
<menuitem type="separator"/>
<menuitem label="projekti">
<menuitem label="Slovenija" name="projSvn" type="check" groupName="one"/>
<menuitem label="Nemčija" name="projDeu" type="check" groupName="one" />
<menuitem label="Madžarska" name="projHun" type="check" groupName="one"/>
</menuitem>
</mx:XMLList>
</mx:MenuBar>
<mx:Label x="845" y="10" text="25. November 2009@08:21" color="#FFFFFF" width="169" height="18.02817" id="label1"/>
<mx:Label x="746" y="10" text="zadnja posodobitev:" color="#FFFFFF"/>
<mx:Panel x="9" y="57" width="743.02814" height="688.4507" layout="absolute" title="Plac za Vsebino" id="panel1">
<mx:Text x="0" y="-0.1" text="MME vsebina" width="722.95776" height="648.4507" id="Gale"/>
</mx:Panel>
<mx:Label x="197.25" y="748.45" color="#FFFFFF" text="Copyright © 2009 MME d.o.o." fontSize="12" width="228.73239" height="20"/>
<mx:Label x="463.35" y="748.45" text="izdelava spletnih strani: FACTUM d.o.o." color="#FBFDFD" fontSize="12" width="287.60565" height="20"/>
<mx:Panel x="759" y="53" width="250" height="705.07043" layout="absolute" title="Plac za hitre novice" id="panel3">
<mx:Text x="0" y="0" text="MME novice" width="230" height="665.07043" id="text1"/>
<mx:Panel x="-10" y="325.35" width="250" height="336.61972" layout="absolute" title="začasna panela" color="#000203" themeColor="#4BA247" cornerRadius="10" backgroundColor="#4B9539" id="panel2">
<mx:Label x="145" y="53" text="vrednost" id="spremmen"/>
<mx:Label x="125" y="78" text="Label"/>
<mx:Label x="125" y="103" text="Label"/>
<mx:Label x="0" y="53" text="spremenljivka iz Menuja:"/>
<mx:Label x="45" y="78" text="Label"/>
<mx:Label x="45" y="103" text="Label"/>
</mx:Panel>
</mx:Panel>
<mx:Label x="9.9" y="10" text="plac za naslov MME vsebine" id="MMEnaslov" color="#040000"/>
</mx:states></mx:Application>I know it's been a while but… did you fix this?
It looks to me like you are terminating the <mx:Application> tag at the top. The opening tag should end like this: resultFormat="e4x">, not resultFormat="e4x"/> (Remove the /).
Carlos -
Need help with writing a query with dynamic FROM clause
Hi Folks,
I need help with an query that should generate the "FROM" clause dynamically.
My main query is as follows
select DT_SKEY, count(*)
from *???*
where DT_SKEY between 20110601 and 20110719
group by DT_SKEY
having count(*) = 0
order by 1; The "from" clause of the above query should be generated as below
select 'Schema_Name'||'.'||TABLE_NAME
from dba_tables
where OWNER = 'Schema_Name'Simply sticking the later query in the first query does not work.
Any pointers will be appreciated.
Thanks
rogers42Hi,
rogers42 wrote:
Hi Folks,
I need help with an query that should generate the "FROM" clause dynamically.
My main query is as follows
select DT_SKEY, count(*)
from *???*
where DT_SKEY between 20110601 and 20110719
group by DT_SKEY
having count(*) = 0
order by 1; The "from" clause of the above query should be generated as below
select 'Schema_Name'||'.'||TABLE_NAME
from dba_tables
where OWNER = 'Schema_Name'
Remember that anything inside quotes is case-sensitive. Is the owner really "Schema_Name" with a capital S and a capital N, and 8 lower-case letters?
Simply sticking the later query in the first query does not work.Right; the table name must be given when you compile the query. It's not an expression that you can generate in the query itself.
Any pointers will be appreciated.In SQL*Plus, you can do something like the query bleow.
Say you want to count the rows in scott.emp, but you're not certain that the name is emp; it could be emp_2011 or emp_august, or anything else that starts with e. (And the name could change every day, so you can't just look it up now and hard-code it in a query that you want to run in the future.)
Typically, how dynamic SQL works is that some code (such as a preliminary query) gets some of the information you need to write the query first, and you use that information in a SQL statement that is compiled and run after that. For example:
-- Preliminary Query:
COLUMN my_table_name_col NEW_VALUE my_table_name
SELECT table_name AS my_table_name_col
FROM all_tables
WHERE owner = 'SCOTT'
AND table_name LIKE 'E%';
-- Main Query:
SELECT COUNT (*) AS cnt
FROM scott.&my_table_name
;This assumes that the preliminary query will find exactly one row; that is, it assumes that SCOTT has exactly one table whose name starts with E. Could you have 0 tables in the schema, or more than 1? If so, what results would you want? Give a concrete example, preferably suing commonly available tables (like those in the SCOTT schema) so that the poepl who want to help you can re-create the problem and test their ideas.
Edited by: Frank Kulash on Aug 11, 2011 2:30 PM -
I have written a java program using jdk1.5. After completing my program I noticed that the compiler was outputting a warning. It tells me that there were a few unsafe operations in my code. Anyway I found out that my code needed to include generics. I was able to figure out how too include some of the generics. I am having trouble with the following:
[javac] /home/paul/Documents/java/PersonalInfo/src/personalInfo/logic/DB.java:105: warning: [unchecked] unchecked conversion
[javac] found : personalInfo.logic.FNComparator
[javac] required: java.util.Comparator<? super java.lang.Object>
[javac] Arrays.sort(sort, fn);
[javac] ^
[javac] /home/paul/Documents/java/PersonalInfo/src/personalInfo/logic/DB.java:105: warning: [unchecked] unchecked method invocation: <T>sort(T[],java.util.Comparator<? super T>) in java.util.Arrays is applied to (java.lang.Object[],personalInfo.logic.FNComparator)
[javac] Arrays.sort(sort, fn);
[javac] ^
[javac] /home/paul/Documents/java/PersonalInfo/src/personalInfo/logic/DB.java:109: warning: [unchecked] unchecked conversion
[javac] found : personalInfo.logic.LNComparator
[javac] required: java.util.Comparator<? super java.lang.Object>
[javac] Arrays.sort(sort, ln);
[javac] ^
[javac] /home/paul/Documents/java/PersonalInfo/src/personalInfo/logic/DB.java:109: warning: [unchecked] unchecked method invocation: <T>sort(T[],java.util.Comparator<? super T>) in java.util.Arrays is applied to (java.lang.Object[],personalInfo.logic.LNComparator)
[javac] Arrays.sort(sort, ln);
[javac] ^
The FN/LNComparator class implements the java.util.Comparator class. I have looked at the generics tutorial on the java.sun.com website. I can't figure out what I replace the <T> with to make the code compile and the warning to go away. I have tried <Comparator> but that just gives me an error that says FNComparator does not take any parameters.
If anyone knows how to fix these warnings let me know
-HockeyfanI know how to fix it.
Step 1. Stop writing subject-lines like "Need help with generics". Everyone who starts a topic needs help, that's why people post here!
Step 2. Don't just post the error message, post the relevant code. In [code ][code ] tags of course.
Step 3. Stop watching hockey, it'll stunt your growth
Step 4. Have the FN/LNComparator implement, not the raw Comparator, but Comparator<Object> -
I need help with this code error "unreachable statement"
the error_
F:\Java\Projects\Tools.java:51: unreachable statement <-----------------------------------------------------------------------------------------------------------------THIS
int index;
^
F:\Java\Projects\Tools.java:71: missing return statement
}//end delete method
^
F:\Java\Projects\Tools.java:86: missing return statement
}//end getrecod
^
3 errors
import java.util.*;
import javax.swing.*;
import java.awt.*;
public class Tools//tool class
private int numberOfToolItems;
private ToolItems[] toolArray = new ToolItems[10];
public Tools()//array of tool
numberOfToolItems = 0;
for(int i = 0; i < toolArray.length; i++)//for loop to create the array tools
toolArray[i] = new ToolItems();
}//end for loop
}//end of array of tools
public int search(int id)//search mehtod
int index = 0;
while (index < numberOfToolItems)//while and if loop search
if(toolArray[index].getID() == id)
return index;
else
index ++;
}//en while and if loop
return -1;
}//end search method
public int insert(int id, int numberInStock, int quality, double basePrice, String nm)//insert method
if(numberOfToolItems >= toolArray.length)
return 0;
int index;
index = search(id); <-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------HERE
if (index == -1)
toolArray[index].assign(id,numberInStock, quality, basePrice,nm);
numberInStock ++;
return 1;
}//end if index
}//end if toolitem array
return -1;
}//end insert method
public int delete(/*int id*/)//delete method
}//end delete method
public void display()//display method
for(int i = 0; i < numberOfToolItems; i++)
//toolArray.display(g,y,x);
}//end display method
public String getRecord(int i)//get record method
// return toolArray[i].getName()+ "ID: "+toolArray[i].getID()
}//end getrecod
}//end class
Edited by: ladsoftware on Oct 9, 2009 6:08 AM
Edited by: ladsoftware on Oct 9, 2009 6:09 AM
Edited by: ladsoftware on Oct 9, 2009 6:10 AM
Edited by: ladsoftware on Oct 9, 2009 6:11 AMladsoftware wrote:
Subject: Re: I need help with this code error "unreachable statement"
F:\Java\Projects\Tools.java:51: unreachable statement <-----------------------------------------------------------------------------------------------------------------THIS
int index;
^
F:\Java\Projects\Tools.java:71: missing return statement
}//end delete method
^
F:\Java\Projects\Tools.java:86: missing return statement
}//end getrecod
^
3 errorsThe compiler is telling you exactly what the problems are:
public int insert(int id, int numberInStock, int quality, double basePrice, String nm)//insert method
if(numberOfToolItems >= toolArray.length)
return 0; // <<== HERE you return, so everyting in the if block after this is unreachable
int index;
index = search(id); //< -----------------------------------------------------------------------------------------------------------------HERE
if (index == -1)
toolArray[index].assign(id,numberInStock, quality, basePrice,nm);
numberInStock ++;
return 1;
}//end if index
}//end if toolitem array
return -1;
}//end insert method
public int delete(/*int id*/)//delete method
// <<== HERE where is the return statement?
}//end delete method
public String getRecord(int i)//get record method
// return toolArray.getName()+ "ID: "+toolArray[i].getID() <<== HERE you commented out the return statement
}//end getrecod
}//end class
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