Importing Packages in Java and Eclipse

Hi,
I am new to Eclipse and this is going to be a stupid question. I have a set of packages which I'm trying to become familiar with and I want to create an object of a class that is contained in one of those packages. I have
import org.sblim.wbem.cim.*;
import org.sblim.wbem.client.*;
public class SBLIMTest {
     * @param args
     public static void main(String[] args) {
          CimClass = null;
but this is not compiling because it's not recognizing CimClass. I have imported all the pakages into my project workspace in Eclipse. Any suggestions?

Hi,
I'm not an eclipse user but usually to compile you need to add paths to used jar files to classpath. In IDE's they are commonly added as libraries in project properties. Try to find there. Keywords Build, Libraries, Add JAR
Best wishes,
Sasha.

Similar Messages

Java and Eclipse

Hi all,
I am experiencing Segfaults if I try to view an applet with appletviewer. I went on moving to lib32-jdk from AUR, where applets suddenly work, but I cannot execute eclipse from either eclipse or eclipse-bin (from AUR) package anmore. Eclipse won't even start up with it -- it displays a window with "JVM terminated, Exit Code 13" and dies (naturally, if the JVM just died.)
Has anyone succeeded in using lib32-jdk with eclipse on x86_64?
Regards
It would also help to mend the 64bit-JVM to not segfaulting anymore. I am not even sure where to report the segfault -- to Sun or to GNU (it happens with catgets() from glibc). This is all very annoying -- and to top it off, Java bragging about how portable it is -- it isn't as if x86_64 came out just yesterday. This is all ridiculous, some companies not porting stuff over, slowing the progress of the whole industry.
Last edited by anykey (2008-06-20 11:18:36)

uh... somehow the problem has solved... ITSELF.
After I turned on my machine this morning, it all automagically worked. Maybe this occurs only on even days, or on full moons(??)
Edit: So now I run the normal 64-bit jdk with 64-bit eclipse, and can view and execute applets... strange. If such things keep fixing themselves, let's at least not hope they can "unfix" themselves again.
Last edited by anykey (2008-06-21 11:05:17)

Installing Java and Eclipse - its got to be easy, hasnt it?

Hello all
I dont know how ive got into this mess but all I know is it doesnt work
I want to download Eclipse and have it run on my home XP computer - we use it at uni on linux machines.
I went to the eclipse site and downloaded it - but the zip directory you download has no installation file. so i unzipped it and double click on the Eclipse icon. it came up with saying there is a problem, see the log file (it doesnt even come up with anything else, jst that message)
I looked on the eclipse help and it says I need a java jdk or jre something. ive downloaded a few of those.
its got to be something simple - please excuse my stupidness as its bound to be something obvious
log files on request
thanks in advance
iain

ive run it a few times but that was the most recent one
i think thats the logs anyway
!SESSION Apr 29, 2005 19:57:27.953 ---------------------------------------------
eclipse.buildId=M200503110845
java.version=1.3.1_15
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_GB
!ENTRY org.eclipse.osgi Apr 29, 2005 19:57:27.968
!MESSAGE Error registering XML parser services.
!STACK 0
java.lang.ClassNotFoundException: javax.xml.parsers.SAXParserFactory
     at java.net.URLClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClassInternal(Unknown Source)
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Unknown Source)
     at org.eclipse.core.runtime.adaptor.EclipseAdaptor.registerEndorsedXMLParser(EclipseAdaptor.java:272)
     at org.eclipse.core.runtime.adaptor.EclipseAdaptor.frameworkStart(EclipseAdaptor.java:253)
     at org.eclipse.osgi.framework.internal.core.SystemBundleActivator.start(SystemBundleActivator.java:61)
     at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:958)
     at java.security.AccessController.doPrivileged(Native Method)
     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:954)
     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:937)
     at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:553)
     at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:477)
     at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:273)
     at org.eclipse.osgi.framework.internal.core.StartLevelManager.launch(StartLevelManager.java:243)
     at org.eclipse.osgi.framework.internal.core.SystemBundle.resume(SystemBundle.java:166)
     at org.eclipse.osgi.framework.internal.core.Framework.launch(Framework.java:425)
     at org.eclipse.osgi.framework.internal.core.OSGi.launch(OSGi.java:51)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:216)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127)
     at java.lang.reflect.Method.invoke(Native Method)
     at org.eclipse.core.launcher.Main.basicRun(Main.java:185)
     at org.eclipse.core.launcher.Main.run(Main.java:704)
     at org.eclipse.core.launcher.Main.main(Main.java:688)
!ENTRY org.eclipse.osgi Apr 29, 2005 19:57:28.31
!MESSAGE Startup error
!STACK 1
java.lang.NoClassDefFoundError: org/xml/sax/helpers/DefaultHandler
     at java.lang.ClassLoader.defineClass0(Native Method)
     at java.lang.ClassLoader.defineClass(Unknown Source)
     at java.security.SecureClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.defineClass(Unknown Source)
     at java.net.URLClassLoader.access$100(Unknown Source)
     at java.net.URLClassLoader$1.run(Unknown Source)
     at java.security.AccessController.doPrivileged(Native Method)
     at java.net.URLClassLoader.findClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClass(Unknown Source)
     at java.lang.ClassLoader.loadClassInternal(Unknown Source)
     at org.eclipse.core.runtime.adaptor.PluginConverterImpl.parsePluginInfo(PluginConverterImpl.java:557)
     at org.eclipse.core.runtime.adaptor.PluginConverterImpl.fillPluginInfo(PluginConverterImpl.java:111)
     at org.eclipse.core.runtime.adaptor.PluginConverterImpl.convertManifest(PluginConverterImpl.java:660)
     at org.eclipse.core.runtime.adaptor.EclipseBundleData.generateManifest(EclipseBundleData.java:233)
     at org.eclipse.core.runtime.adaptor.EclipseBundleData.loadManifest(EclipseBundleData.java:191)
     at org.eclipse.core.runtime.adaptor.EclipseBundleData.getManifest(EclipseBundleData.java:159)
     at org.eclipse.core.runtime.adaptor.EclipseBundleData.loadFromManifest(EclipseBundleData.java:280)
     at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultBundleData.initializeNewBundle(DefaultBundleData.java:77)
     at org.eclipse.osgi.framework.internal.defaultadaptor.DefaultAdaptor$1.begin(DefaultAdaptor.java:451)
     at org.eclipse.osgi.framework.internal.core.Framework.installWorkerPrivileged(Framework.java:746)
     at org.eclipse.osgi.framework.internal.core.Framework$2.run(Framework.java:664)
     at java.security.AccessController.doPrivileged(Native Method)
     at org.eclipse.osgi.framework.internal.core.Framework.installWorker(Framework.java:715)
     at org.eclipse.osgi.framework.internal.core.Framework.installBundle(Framework.java:659)
     at org.eclipse.osgi.framework.internal.core.BundleContextImpl.installBundle(BundleContextImpl.java:219)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.installBundles(EclipseStarter.java:800)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.loadBasicBundles(EclipseStarter.java:429)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.startup(EclipseStarter.java:222)
     at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:127)
     at java.lang.reflect.Method.invoke(Native Method)
     at org.eclipse.core.launcher.Main.basicRun(Main.java:185)
     at org.eclipse.core.launcher.Main.run(Main.java:704)
     at org.eclipse.core.launcher.Main.main(Main.java:688)
!ENTRY org.eclipse.osgi Apr 29, 2005 19:57:28.46
!MESSAGE Bundle initial@reference:file:c:/Program Files/Programming/Eclipse/eclipse/plugins/org.eclipse.core.runtime_3.0.2/ [1] was not resolved.

Importing packages to java classes

I am at present trying to write a distributed system. To do this, I write an idl which creates a group of classes I need for communication between client and server and bundles them into a package. Within the same file as the package, I am trying to write a Servant class to manipulate classes contained in the package. The servant, at its most basic, looks like this
import UserManagerTest.*;
public class Servant extends _UserManagerImplBase{
When I try to compile this, the compiler returns two errors - that it can't find the UserManagerTest package and that it does not recognise the _UserManagerImplBase class. The package resides in the same file as the Servant, so should it not be able to import it and use classes contained in it? Any help is greatly appreciated,
Ian

The problem is your class path.
Most likely either you do not have it set at all or you are pointing at a child directory rather than the root directory.
The package resides in the same file as the Servant,Same file? You can't have two packages in the same file. And if you meant 'directory' then you might as well move it, because trying to keep two packages in the same directory, although possible, is more trouble than it is worth.

Importing packages from java.*, omg.*, etc. gives me error messages

Hi
I'm not a developer at my company, so I don't have the full-and-proper set up on my computer. However, I'm the spearhead of the javadoc initiative, and I build and update it on a weekly basis.
I get a lot of error messages in the following format:
^
C:\se.1.1\lib\se\com\smartenergy\domain\UserNoCoverage.java:16: Class javax.mail.internet.InternetAddress not found in import.
import javax.mail.internet.InternetAddress;
I then get the following statement:
Too many errors. (The limit on reported errors is 100.)
Followed by more statements like this:
Internal error: IMPORTNOT*FOUND* javax.servlet.http.HttpSession - ignoring
I was wondering if I were to use the -link option and link my javadoc build to the javadoc builds of these imports (if there is any!), would it reduce these errors?
How do I get a relatively error-free build?
And after this is solved, there are more issues to come....
Thank you
Jane Sorensen

Well, in the words of our engineer, it looks like we'll leave the messsage unchanged...
There are many possible remedies depending on the intent of the person
using javadoc:
(1)     change your classpath
(2)     change your extension class path
(3)     change your boot class path
(4)     change CLASSPATH
(5)     change your source path
(6)     specify the class' source on the command line
(7)     change the extension class path

Load of big files in BPC with import package

HI,
I need to import many files (.txt) with 1,5 million of data lines in BPC with import package.
But BPC is limited to 500 000 lines for each import.
Have you got a solution ?
Thanks,
Morgann

Morgann,
You have two options.
1. use import into FACT table -> Cons : System will be offline. Pros : faster performance. No limit
2. if you should use import package, split file and put it into one folder and create a custom package that will handle those data file one by one. Cons : Need to make a custom package Pros : No system offline.
I hope it will help you.
Thanks.
James Lim

Import statement in .java files and .jsp files

Guys I have few mysteries about this import statement.
Please correct me if I am wrong.
1)Suppose if I have a folder c:\SourceFolder it has one.java and two.java files.If I compile one.java then one.class files is created in c:\ClassFolder .Now two.java uses one of the method of one.java,and without using import statement I am able to compile two.java, and two.class file is created in c:\ClassFolder.I assume that the path of one.class was taken from the CLASSPATH environment variable,hence I there was no need for import statement .........am i right ?
BUT... in My.jsp,which is in C:\JspFolder, if I want to use one.class,then I have to specifically import the class I want to use.That is i have to say
<%@page import="one"%>
and since the classpath is C:\ClassFolder ,it finds one.class in the C:\ClassFolder.(Note that My.class is created in a folder different from c:\ClassFolder )
But I am wondering why was there no need for me to import one.class in two.java.
(Note I am using JDeveloper and Apache server)
Please help.
In this case the pSo I am wondering in JSP why it doesn't take the class I am looking for from the classpath .
Help.

You have to understand Java scoping rules. In the 1st scenario with the two Java files I am guessing neither one of them begins with a package statement. This means that they belong to the default package. When you compile the compiler uses the classpath to resolve method calls looking in the default package since there was no import statement specified in two.java. JSP is a little different. Now I just read this here in these forums a couple of days ago. Since the classfiles generated from the JSP files are not in the CLASSPATH they are loaded by a different classloader. This is why you have to import all references to all classes in the default package.

Import statement in .java files and .jsp files ..correction

Guys I have few mysteries about this import statement.
Please correct me if I am wrong.
1)Suppose if I have a folder c:\SourceFolder it has one.java and two.java files.If I compile one.java then one.class files is created in c:\ClassFolder .Now two.java uses one of the method of one.java,and without using import statement in two.java I am able to compile two.java, and two.class file is created in c:\ClassFolder.I assume that the path of one.class was taken from the CLASSPATH environment variable,hence I there was no need for import statement .........am i right ?
BUT... in My.jsp,which is in C:\JspFolder, if I want to use one.class,then I have to specifically import one.class in My.jsp .That is i have to say
<%@page import="one"%>
in My.jsp.
and since the classpath is C:\ClassFolder ,it finds one.class in the C:\ClassFolder and MyJsp is compiled sucessfully.(Note that My.class is created in a folder different from c:\ClassFolder )
But I am wondering why was there no need for me to import one.class in two.java.
(Note I am using JDeveloper and Apache server)
Please help.

It has to do with packages. Most java classes are in a package, the name of which must conform to its place on the filesystem relative to the classpath. By that I mean that if you have com.mystuff.One.java, it must be in a folder com/mystuff where com is located somewhere in the classpath.
What you've done is a little different. I'm assuming a couple of things:
1. you have no package declaration at the top of one.java or two.java
2. you have the current directory "." in your classpath.
Java has the concept of the "default package", which covers classes without a declared package, and in your case is the current directory.
So when you're in c:\sourcefolder and run the compiler, then "."="c:\sourcefolder", and that directory is part of the default package. No import statements are necessary for classes that are in the same package. This is why two.java can call methods in one.java without an import statement.
When you run your jsp, the "current directory" part of your classpath is not c:\sourcefolder, but some other value (probably the directory you start your jsp engine from) You will have to import all non-java-library classes because the jsp itself becomes a java class, with a package that is determined by the jsp engine.

Problem with "package-info.java" using EJB 3.0 and OC4J

Hi all.
I already posted this question on JDeveloper forum, but didn't get any answer,
so I'll try posting here.
Anyway, I'm new both to JDeveloper and J2EE,
so I'm trying out examples for EJB 3.0, and I got stuck at "Use Security Annotations with EJB 3.0"
(http://www.oracle.com/technology/tech/java/oc4j/ejb3/howtos-ejb3/howtoejb30security/doc/how-to-ejb30-security-ejb.html).
Example code is working perfectly, if one builds it using Ant, but I'm importing all examples into JDeveloper (or at least I'm trying to :))
JDeveloper can't build file "package-info.java" containing following code:
@javax.annotation.security.SecurityRoles(roleNames={"superuser", "user"})
package oracle.ejb30;I'm getting following output in "Compiler - Log" window:
Error(2,1): 'class', 'interface', or 'enum' expected.
Help much appreciated...
platform used:
Windows XP SP2
JDeveloper Studio (Version 10.1.3, Build 3412)
JDK 1.5_06
OC4J 10.1.3 developer preview 4 (standalone version)

Since you're using EJBs, you can use JTA and can skip the getTransaction() calls. If you want to use getTransaction().begin() and commit(), then make sure that your EntityManager is resource-local. The configuration for this is in persistence.xml. Set a transaction-type of RESOURCE_LOCAL rather than JTA.

Import package does not exist java

Hi ,
i try to compile as following
javac -cp "myapplication.jar:." modelapp.java
my batch file as follwong
set PATH=C:\Program Files\Java\jdk1.6.0_32\bin;C:\Users\DELL\Downloads\myfolder;C:\Users\DELL\Downloads\myfolder\edu;
set CLASSPATH=C:\Program Files\Java\jdk1.6.0_32\bin;C:\Users\DELL\Downloads\myfolder;C:\Users\DELL\Downloads\myfolder\edu;
cd C:\Users\DELL\Downloads\Stanfordnew
but the error appear as following
package edu.appli.machr. doesn't exist
import package edu.appli.machr. doesn't exist
i have already add the package to classpath
please help me in how can i solve this problem.
tHANKS

javac -cp "myapplication.jar:." modelapp.java You compile on Linux and run on Windows or something? That is the Linux classpath, on Windows the list separator is ; If you do everything on Windows I'm a bit amazed it worked.
set CLASSPATH=C:\Program Files\Java\jdk1.6.0_32\bin;C:\Users\DELL\Downloads\myfolder;C:\Users\DELL\Downloads\myfolder\edu;You made a copy/paste mistake, the classpath contains the path.
please help me in how can i solve this problem.Research what the classpath actually is. Google can easily provide you plenty of articles describing it.

How is the 'import-packages' information saved in the database, and how long?

Hello,
I am developping a ECM Connector for Adobe LiveCycle ES, which is a customized component.
1 - Who should I contact to have some specific support ?
There is no detailed information yet on this on the adobe site (http://livedocs.adobe.com/livecycle/8.2/programLC/programmer/help/wwhelp/wwhimpl/js/html/w whelp.htm?href=000931.html&accessible=true) .
If you think that I should address my problem to another department of Adobe, please tell me which department?
I give you another description of my problem. In fact, I have been investigating on it.
2 - If I put this in my component.xml file, in step 1:
<component-id>com.rsd.adobe.livecycle.RSDFoldersConnector</component-id>
<version>1.0</version>
<import-packages><package version="1.0">com.rsd.simpleApiFolders</package> </import-packages>
If I change the version to 1.1 and remove the 'import-packages' (in step 2) , will the new component need the com.rsd.simpleApiFolders package. It seems that is still needs it.
3 - How is the 'import-packages' information saved in the database, and how long?
In fact, on thursday, I used 'import-packages' to make a test. And since them, I can not deploy any of my components.
LiveCycle throws a ClassNotFoundException.
ALC-DSC-000-000: com.adobe.idp.dsc.DSCRuntimeException: Internal error.
[java] at com.adobe.idp.dsc.registry.component.impl.ComponentRegistryImpl$6.doInTransaction(Compone ntRegistryImpl.java:338)
... Caused by: java.lang.ClassNotFoundException: http-0.0.0.0-8080-1Class name com.rsd.simpleApiFolders.Context from package com.rsd.simpleApiFolders not found.
[java] at com.adobe.idp.dsc.DSContainerSearchPolicy.searchClassUsingParentFirst(DSContainerSearchPo licy.java:234)
Thank you in advance
Regards.

1 - Who should I contact to have some specific support ?
That would depend on your Adobe support contract and if your organization has a TAM assigned. You should check with your organization's Adobe contact and see what support options your organization has purchased.
Having said that, this forum has a few people that may be able to help (but the forum does not have a SLA associated with it)
2 - If I put this in my component.xml file, in step 1:
<component-id>com.rsd.adobe.livecycle.RSDFoldersConnector</component-id>
<version>1.0</version>
<import-packages><package version="1.0">com.rsd.simpleApiFolders</package> </import-packages>
If I change the version to 1.1 and remove the 'import-packages' (in step 2) , will the new component need the com.rsd.simpleApiFolders package. It seems that is still needs it.If your component class needs the simpleApiFolders class then yes, you still need it. Think of import-packages like a class-path statement (but with packages and not jars). Its not physically moving the package into your application, but allowing you to access it from another container.
3 - How is the 'import-packages' information saved in the database, and how long?
As far as I know they are not imported into the database. As I stated above, I believe that the import-packages just allows you to point to classes that are in the app server's classpath, but are not physically in you component jar file. As long as that class is in the app server class-path (or in the Adobe EAR file) then you should be able to access it. Is the jar file containing the simpleApiFolders class in the app server's lib directory?

Packages that java normally already imports

I am trying to get back into programming, and I remember awhile ago being told that java automatically imports certain packages, like java.lang, and maybe a couple more. I tried to test that out by using methods withing java.lang, or java.util, or java.io without importing those packages.
So I tried to test out java.util. I created an Arrays class without explicitly importing java.util. But my programming didn't recognize the class. I think it is possible that because of my directory structure the imports isn't working. But I'm not exactly sure how to make java see the packages in it's correct directory. Anybody can help? A more extensive question...what kind of environment does everybody use to code (windows environments please, that's what I'm using, I haven't set up a Linux box yet).

I am trying to get back into programming, and I
remember awhile ago being told that java automatically
imports certain packages, like java.lang, and maybe a
couple more. I tried to test that out by using
methods withing java.lang, or java.util, or java.io
without importing those packages.
So I tried to test out java.util. I created an Arrays
class without explicitly importing java.util. But my
programming didn't recognize the class. I think it is
possible that because of my directory structure the
imports isn't working. But I'm not exactly sure how
to make java see the packages in it's correct
directory. Anybody can help? A more extensive
question...what kind of environment does everybody use
to code (windows environments please, that's what I'm
using, I haven't set up a Linux box yet).Only the public classes in the package java.lang are automatically imported. Here is some more information about packages from Sun's java tutorial:
http://java.sun.com/docs/books/tutorial/java/interpack/packages.html

Java, UML and Eclipse ?

Hi to everyone, I'm new to the forum, as well as Java. I'm currently learning from a Deitel Book (How to program in Java) and some links I've found in this Forum. I'm using Eclipse (OS X version), after having used pico and terminal commands to learn the basics (editioin, compilation, etc..)
Now I'm learning Java because I'll be working with more experienced developer in a few weeks in a major project, and since Java is an OOP language I think it would be desirable to learn and use UML, I've seen somewhere in this forum that Eclipse supports UML via pluggin, but what version of UML is desirable to learn and use for developing Java ? if it is desirable at all !
Thanks !!!

There's only one version of UML to learn.
Maybe you mean what UML tools would be good to learn?
If you have a lot of money, Rational Rose from IBM/Rational is popular. I don't care for it myself.
Borland's Together is a fine product. You'll have to buy a license.
ArgoUML has a good freeware edition to download. You can't import Java files into it to generate diagrams, but you can create diagrams by hand with it.
I'm not aware of a UML plugin for Eclipse.
What does Google find for you?
%

2 files in same package and depends each other need import package??

test1.java and test2.java are in the same package mypackage,
and test1.java will call methods in test2.java, does it mean
test1.java needs to import mypackage.test2;
i.e.
//test1.java
package mypackage;
import mypackage.test2;
class test1
}

no, once classes are in the same packages they are picked up ie tc1 is in tc_package and tc2 is also in tc_package, tc1 need not import tc_package.tc2 to use tc2 methods.
/Paul

Apple Xcode, Java, and Packaging

I have a library of code that I have packaged up and have in a folder "com/foo/..." I have tried dragging the folder into the Xcode source list, and I have also tried importing the directory into Xcode, and when I compile, Xcode keeps saying it cannot find class: com.foo.Whatever; I have even made sure that directory com is in the project folder. I must be missing something. Does anyone know what I am missing?
Thanks,
Daniel

by starting this discution i just whanted to know what peaple whas thingking about this decision
and for the other post i was just saying that apple was no in right to say tha nobody was using java anymore
as proof when you buy a new computer or cellphone(not idevice) java already instaled
and microsoft ave published that they ave developed a jvm compatible but apple dont want to integrat it to idevice
same thimg for flash they cant develop1 becaus apple say no but a lot of user want it
about jailbreaking
have you read what I wrote
i said ''and if java not use anymore why the first apps installed on jailbreaked idevice are java and flash?''
i didn't say i add mi device jailbreaked and i didn't suggests jailbreaking

Importing Packages in Java and Eclipse

Similar Messages

Maybe you are looking for