Java programming training

does sun offer some sort of java programming training on their website? is there any other website that offers java programming training

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How to edit the existing data in the XML file from java programming.

Hi all
i am able to create XML file with the sample data as below from java programming.
i need sample code on how to edit the existing data in the XML file?
for example
<?xml version="1.0"?>
   <mydata>
           <data1>
                     <key1>467</key1>
                    <name1>Paul</name1>
                    <id1>123</id1>
          </data1>
          <data2>
                     <key2>467</key2>
                    <name2>Paul</name2>
                    <id2>123</id2>
          </data2>
    </mydata>
i am able to insert the data in the XML.
now i need sample code on how to modify the data in the above XML file from the java programming for only key2,name2,id2 tags only. the remaining tags data in the XML file i want to keep same data except for key2,name2,id2 which are i want to modify from java code
Regards
Sunil
[points will be always rewardable]

hi
u need a parser or validate the xml file for to read the xml file from java coding u need for this
xml4j.jar u can download this file from here
http://www.alphaworks.ibm.com/tech/xml4j
or we can use the SAX(simple API for XML)
some sample applications for this
http://www.java-tips.org/java-se-tips/javax.xml.parsers/how-to-read-xml-file-in-java.html
http://www.developertutorials.com/tutorials/java/read-xml-file-in-java-050611/page1.html
http://www.xml-training-guide.com/e-xml44.html
let me know u need any other info
bvr

What do you use to write Java programs?

Hi. Do you mind if I ask you what do you use to write your programs in Java? I am a student and we are using NetBeans IDE 3.6. I know it is a bit old but the tutor says we must stick to that one. What is best for writing Java programs?
Thanks.

Do you think those things will make things easier or is it more complex?If you're learning on your own, you'd better use something more up to date (most probably better interface, childhood bugs fixed, and better support on the Internet).
If you're in a classroom, or a training room, you'd better use what the instructor tells, or at least what other students/trainees use. Easier to get help and share tips if everyone has the same setup.
Good luck learning Java.

Syllabus/Topics for Sun Certified Instructor for Java Programming Language

Hi,
What is the Syllabus/Topics for Sun Certified Instructor for Java Programming Language ?
At the following link
http://www.sun.com/training/catalog/instructor/java.html
detailed syllabus is not there.
I am unable to find the details in Sun site even after search through google.
Please help in this regard.
Thank you for your kind consideration.

Sir,
thank you for your response.
technic wrote:
I'm not sure what you mean by Syllabus/Topics?For SCJA/SCJP/SCWCD/SCBCD/SCDJWS/SCMAD/SCEA
I am able to find the detailed syllabus for the exam by clicking on the respective certification link at the following link
http://www.sun.com/training/certification/java/index.xml
for example: for SCJP,
http://www.sun.com/training/certification/java/scjp.xml
http://www.sun.com/training/catalog/courses/CX-310-065.xml
these links are providing exam objectives, number of questions, exam duration , fee details etc.
But for
Sun Certified Instructor for Java Programming Language Course (SL-275)
I am unable to find such details exam objectives (syllabus), no. of questions, exam duration, etc.,
even, the following link
http://www.sun.com/training/certification/objectives/index.xml
is providing details of all other certifications except
Sun Certified Instructor for Java Programming Language Course (SL-275)
thank you for your kind consideration.

Java Programming Class

Can anyone recommend a good training class that covers Java programming with enterprise portals, i.e, Java IView development, etc.
Thanks

Hi,
do you had a look at:
http://www.sap.com/services/education/index.epx
Regards
Gregor

Error while running a Java Program

Can anyone help me,
I am getting the following error while running a Java program, Below is the exception thrown, please help.
java.nio.BufferOverflowException
at java.nio.Buffer.nextPutIndex(Buffer.java:425)
at java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:463)
at org.jetel.data.StringDataField.serialize(StringDataField.java:295)
at org.jetel.data.DataRecord.serialize(DataRecord.java:283)
at org.jetel.graph.DirectEdge.writeRecord(DirectEdge.java:216)
at org.jetel.graph.Edge.writeRecord(Edge.java:288)
at com.tcs.re.component.RESummer1.run(RESummer1.java:505)
java.nio.BufferOverflowException
at java.nio.Buffer.nextPutIndex(Buffer.java:425)
at java.nio.DirectByteBuffer.putChar(DirectByteBuffer.java:463)
at org.jetel.data.StringDataField.serialize(StringDataField.java:295)
at org.jetel.data.DataRecord.serialize(DataRecord.java:283)
at org.jetel.graph.DirectEdge.writeRecord(DirectEdge.java:216)
at org.jetel.graph.Edge.writeRecord(Edge.java:288)
at com.tcs.re.component.RECollectCont.run(RECollectCont.java:304)

Ok, let's see. Write the following class:
public class Grunt {
public static void main(String[] args) {
System.out.println("Hello Mars");
}Save it as "C:\Grunt.java", compile by typing:
javac c:\Grunt.javaRun by typing:
java -classpath "C:\" GruntDoes it say "Hello Mars"? If yes, go back to your program and compare for differences (maybe you used the "package" statement?).
Regards

Running a java program a set number of times

This is a general question. Is it possible to make a java program run only 5 times for the sake of arguement.
Basically I want to write a program that will give the user some flexibility when it will actually run another Java program, but I only want them to be able to say "not now' for a set number of times. When the last time comes the other program will launch. I was initially thinking of the Do Whilw loop, but this needs to work when the program is restarted.
Program starts, it has 5 times it will run before it does something else(doesn't really matter now I think). User takes option "Not Now" and the program ends, but warns the user this will run 4 more times before you will need to do something.
This process will repeat until the user takes the option "Ok install now" or the time limit expires and the install occurs anyway. Can someone point me in the right direction.

ok I see so it's like one those programs that you download for free on the internet and they give you a set amount times to use it before you have to pay for it. but in this case when the number of times you use it equals 5 (or when the user clicks ok) a different java app will open automatically.
My first thought would be to Write a Serialized object to disk using objectOutputStream that stores the number of times the application has been opened. and each time the program runs it checks for the serialized object and then you can do something like what I posted before. of course if were worried about security the user could always look for the object and erase it, if so then I guess we would have to come up with another plan of attack
Hope this helps

Running a java program

This shows how dumb i am.
I have a java program all wrote. How can i run it without using the compiler? Can i have a .exe file or something that I just have to click on to run??
Thanks again
Agdude

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.
C:\Documents and Settings\awaguespack>cd jbproject\untitled1\classes\untitled1
C:\Documents and Settings\awaguespack\jbproject\untitled1\classes\untitled1>java
form
Exception in thread "main" java.lang.NoClassDefFoundError: form (wrong name: unt
itled1/form)
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$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
C:\Documents and Settings\awaguespack\jbproject\untitled1\classes\untitled1>dir
Volume in drive C has no label.
Volume Serial Number is C065-81CA
Directory of C:\Documents and Settings\awaguespack\jbproject\untitled1\classes\
untitled1
07/24/2003 02:21 PM <DIR> .
07/24/2003 02:21 PM <DIR> ..
07/24/2003 02:21 PM 7,655 form.class
1 File(s) 7,655 bytes
2 Dir(s) 36,031,016,960 bytes free
C:\Documents and Settings\awaguespack\jbproject\untitled1\classes\untitled1>echo
%classpath%
%classpath%
C:\Documents and Settings\awaguespack\jbproject\untitled1\classes\untitled1>

Running a java program at "Start Up"

Besides running an html file with an applet in it. Are there any simple ways to launch a java program every time the computer is turned on.
I am not asking for specific directions, but rather just an idea, and i will go find my own guide.

Well two ideas (if ur on windows) u could try are -
one, if you had a class file you could simply create a
batch file on windows that says java <class> and then
put that batch file in your startup so that the class
is run at startup or else you could think of modifying
the registry keys on windows to run this class at
startup - whichever works for you.Or you could just jar the program up, adding a Main-Class indicator in the manifest, and then add a shortcut to the jar to the startup folder, as someone else stated. Theres little need to go messing around with DOS batch in modern windows.

Running a java program from an icon

I want to run my program from an icon on my desktop. I have a .bat file that I've built a shortcut to and it works.MY GUI program does display and run when I click on the icon. The problem is that the DOS window also shows up behind my GUI.
Is there anyway to prevent the DOS window from showing? Or is there another way to run a Java program without resorting to a DOS command line or running it through FORTE or another IDD?

Chris's solution worked well, with one small problem. Once my GUI starts, it takes up the whole screen. Normally when I run it, it appears as a small window.
not a big problem, I can reduce it easily after it starts. But does anyone know a way to make it come up in the reduced size it norally comes up in when I run it from my IDE?

Running a java program via a batch file

I am unable to run a java program from a batch file that I created.
spiderpackage.EntryPoint is a class file which I am trying to run with a -v option to output something.What should I do to get the output?
echo ^<html^>^<body^>
echo hello^<br^>
call java spiderpackage.EntryPoint -v
echo ^</body^>^</html^>

This has nothing to do with java programming. Have a look at the windows help for the call command.
The echo <html> stuff doesn't make sense. What's it for?
The command in you batch file should be:
java -cp . spiderpackage.EntryPoint -v
assuming that java is in the system path, and the EntryPoint.class is in a directory called spiderpackage which is a subdirectory of your current working directory

Running a Java program at startup in Linux

Hello
How do I run a Java program at startup in Linux? I know in Windows I can put a .bat file in C:\Windows\Start Menu\Programs\StartUp\ directory, but in Linux I have no idea how it is done.
Thank you,
Mihai

This is really a Linux question, not Java.
And then it depends on the version of Linux you are using.
Maybe this will help, otherwise you should try on a forum for your version of Linux.

Running a java program in a directory other than the current directory

How do I run a java program that's located in a directory other than the current directory?
There is a file Test.java in /dir1/subdir1. If my current directory is anywhere other than that directory, say /dir2/subdir2, I can compile Test.java by using:
javac -classpath /dir1/subdir1 /dir1/subdir1/Test.java
But when I try to run it with:
java -classpath /dir1/subdir1 /dir1/subdir1/Test
I get a java.lang.NoClassDefFoundError: \dir1\subdir1\Test
Any thoughts?

You need to specify just the name of the class you want to run. So java -classpath /dir1/subdir1 Test

Running a java program outside eclipse...!

Hi guys...!
I wrote a java program that uses different classes. The program deals with xml documents and creates a new xml document. The problem is, the program works fine in eclipse, but when I run through the command line in windows, it complains that it can't see the different classes that I created. Here is one of the error messages:
Test.java:44:cannont find symbol
symbol : class Circuit
location : class src.Test
Circuit cir = new Circuit ();
Note: Test.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details
Does anyone know how to resolve this...?
Any help from you guys will be very appreciated.
Thanks..

I think the problem is probably something like this:
You have a path thus:
C:\blahblahblah\With a subdirectory thus:
C:\blahblahblah\srcIn which you have declared classes thus:
package src;
public class Foo {
}And you have then used a classpath something like the
following:
javac -classpath C:\blahblahblah\src Foo.javaThis is incorrect. Your classpath needs to point to
the root of the package hierarchy. If it's like the
above, it will look in C:\blahblahblah\src for a
package src, which results in a path like
C:\blahblahblah\src\src which does not exist.
You should set it to:
C:\blahblahblah\Where that is the root from which your packages
stem.
Dave.Thanks Dave. It works man. I really appreciate your help.

Running a Java Program for every shut down of system

Hi
I have a java program that sends an email to the Admin of my network.
But this is program i just want to execute for every shutdown and on of my system
Please Tell me how to execute my java program at system shutdown time and on time..
Thanks

Despite your objective, this is not a Java issue. The real question is "How does one run a program just before system shutdown?"
How you execute such an application is system dependent. Java doesn't know when the system shuts down, only when the JVM shuts down. Unless you're willing to have JVM running the entire time the system is up, you'll need native code to detect system shutdown & launch the notification app.

Java programming training

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