Java Programming Exam v1.4

Could anyone please e-mail me at [email protected] with information and tutorials with regards to the Sun Certified Java Programmer exam for Java 1.4. I know it sounds stupid, but i've only been learning and programming with java for approx. 2 months and some of the subjects covered in the exam i haven't looked at due to a lack of resouces.
Thank you to anyone who replies and any help is greatly appreciated.

Could anyone please e-mail me at [email protected]..
First, don't ask people to reply by private email. Most Forum regulars believe solving problems should be a public, transparent process during which a first try at an answer can and should be corrected if someone more knowledgeable notices that it is incomplete or incorrect. Also, they get some of their reward for being respondents from being seen to be competent and knowledgeable by their peers (not to mention the possibility of collecting some of those precious Duke Dollars).
Second, in response to your question:
Sun's Java Certification website
Mock exams
http://www.javacertificate.com/
http://www.javaranch.com/certification.jsp
http://www.jchq.net/
http://www.danchisholm.net/
How to pass the SJCP (5/03)
Here is what I would recommend, based on my experience:
* Take the mock exams - the tests at javacertificate.com do a good job of helping you identify your strengths and weaknesses. Dan Chisholm's mock exams are tough, but also good for opening your eyes to some things you might not have thought about.
* Concentrate on your weaknesses (mine were assertions, garbage collections, and threads).
* Practice your butt off writing code. Practice, practice, practice. And DON'T use an IDE. Code with a simple text editor and compile from the command line. The test is going to tax your ability to "compile" in your head and you don't want an IDE doing that work for you.
* Familiarize yourself with the Exam objectives. Know those inside and out, and you'll have no trouble with the test. Don't waste time on non-covered topics (e.g. java.io, java.awt).
* Figure out why you want this certification. It's not going to win you any admirers among the gurus. It's probably not going to get you a job. It doesn't mean you can code your way out of a wet paper bag. It's just the start of your journey in Java.

Similar Messages

Need Help with a Java program

Hey
I am doing a bachelor of Multimedia and for some reason I was forced to do Programming 1 which is just Java programing.I have been doing pretty well but we have the final exam coming up on Thursday and they told us to learn how to do this question but I have no idea how to do it, could someone please help me?
Write a program that reads a file containing a list of students' student numbers and names, and then writes out another file in which the students have been formed into project groups.
Sample input file:
96439530 Naranek, Kosh
08532109 Ivanova, Susan
87642078 Sheridan, John
44327889 Varner, Dell
98100023 Kotto, Vir
66345689 Sinclair, Jeffrey
77421009 Garibaldi, Michael
88775544 Winters, Talia
54321098 Alexander, Lyta
12345098 Mollari, Londo
03465499 Takashima, Laurel
88765432 Kyle, Benjamin
08876500 Keffer, Warren
07687878 Cole, Marcus
For the project course: no group should have more than 5 members; and it is desireable that all groups have as close to 5 members as possible; and that students be allocated to groups alphabetically by family name, as in this sample output file:
Group 1:
Lyta Alexander (54321098)
Susan Ivanova (08532109)
Benjamin Kyle (88765432)
John Sheridan (87642078)
Dell Varner (44327889)
Group 2:
Marcus Cole (07687878)
Warren Keffer (08876500)
Londo Mollari (12345098)
Jeffrey Sinclair (66345689)
Talia Winters (88775544)
Group 3:
Michael Garibaldi (77421009)
Vir Kotto (98100023)
Kosh Naranek (96439530)
Laurel Takashima (03465499)
Students' names are first sorted (Alexander, Cole, Garibaldi, Ivanova, ...), then allocated to the tutes in rotation (Alexander to 1, Cole to 2, Garibaldi to 3, Ivanova to 1, ...).
Note also that the student's details are written in a different format from the input. You may make the (usually wrong!) assumption that each student has a simple one-word family name and one other name.

I'm sorry too annoy you again but I don't know how to implement what you told me. Here is my current code:
import java.io.*;
import java.util.*;
class DetailSortTest {
     public void run() {
          try {
               BufferedReader in = new
               BufferedReader(new FileReader ("Data.txt"));
               String line = in.readLine();
               String[] names = new String [10];
               int i = 0;
               PrintWriter FileOut = new
               PrintWriter(new FileWriter ("Data 2.txt"));
               processFilesTest(in, FileOut);
               in.close();
               FileOut.close();
          } catch (FileNotFoundException f) {
               System.out.println("Could Not Open The File");
          } catch (IOException i){
               System.out.println(i.getMessage());
     public void processFilesTest (BufferedReader in, PrintWriter FileOut)
     throws IOException {
          String data[] = new String[100];
          List dList = new ArrayList();
          String NLine = in.readLine();
          FileOut.println(NLine);
     public static void main(String[] args) {
          DetailSortTest anObject = new
          DetailSortTest();
          anObject.run();
How would I do it I tried:
NLine.split(data[2]+""+data[1]+""+data[0]);
But all that displays is null, null, null
I know I am probably so stupid but I really appreciate the help

How to access database file on CDROM from Java Programe??

Hello friends,
I am making online exam application.
I want my question database to be reside on CDROM.
but i am not getting any idea how to make DSN or static path that resolute the path that i have mentioned for CDROM.
basically i want to know how to access CDROM from Java Programe????
Thanks in advance
Navik Pathak

Once you mounted the CDROM (something maybe as /media/cdrom) as a file system (or assigned a drive letter to it like D: or F: or whatever), the files are accessible normally.

Network Programming exam papers (college exam papers)

hello.
my name is james mcfadden and i am a final year (4th year) undergraduate computing student at Letterkenny Institute of Technology. my e-mail address is [email protected] I have a question here for you. Would you have links to online versions of final year undergraduate Computing exam papers, specifically Networked Applications Development and or Network Management exam papers? I was only able to get access to Trinity College Dublin�s exam papers and Letterkenny IT�s exam papers.
The 2005/06 academic year is the 1st academic year that final year undergraduate computing students at Letterkenny IT are being taught how to continue doing network programming in Java. i was taught how to do simple network programs in Java when I was in 3rd year.
The name of the network programming subject that I�m doing in 4th year is Network Programming for Broadband Systems. It is divided into 2 parts: Programming and Networks. In past exam papers (C++ papers), a student would have had to answer 4 out of 6 questions. There would�ve been 4 programming questions and 2 networking questions on those papers. It is going to be the same for both the Summer and Autumn 2007 Broadband Network Programming exam papers, apart from fact that they will be Java papers and that a lot of the material that I have learned is new.
In 4th year I did Multicast Sockets, Threads, Non-Blocking I/O, Remote Method Invocation, Protocol Handlers, and Content Handlers for the Programming part of the subject (Java Network Programming, 3rd Edition, by Elliote Rusty Harold).
I did Network Security and Network Management for the Networks part of the subject (Computer Networking : A Top-Down Approach Featuring The Internet, 3rd Edition, by James F. Kurose and Keith W. Ross).
Your help is greatly appreciated.
Thank you.

I have a question here for you.
Would you have links to online versions of final year
undergraduate Computing exam papers, specifically
Networked Applications Development and or Network
Management exam papers? No

Java Developer Exam.

I'm thinking of taking the Java Developer exam.
People who have done the Java Developer exam, could you please contribute with your help by answering these questions ?
1. How long did you program in Java before taking the exam on ?
2. How long did it take for you to complete the programming task ?
3. Was it more difficult than the Java Programmer exam ?
4. Is it worth to take it ?
5. What was the hardest part of the exam ?
Other comments on the Java Developer exam are welcomed as well.
Cheers
/Andreas

Here is what I would recommend, based on my experience:
* Take the mock exams - the tests at javacertificate.com do a good job of helping you identify your strengths and weaknesses. Dan Chisholm's mock exams are tough, but also good for opening your eyes to some things you might not have thought about.
* Concentrate on your weaknesses (mine were assertions, garbage collections, and threads).
* Practice your butt off writing code. Practice, practice, practice. And DON'T use an IDE. Code with a simple text editor and compile from the command line. The test is going to tax your ability to "compile" in your head and you don't want an IDE doing that work for you.
* Familiarize yourself with the Exam objectives. Know those inside and out, and you'll have no trouble with the test. Don't waste time on non-covered topics (e.g. java.io, java.awt).
* Figure out why you want this certification. It's not going to win you any admirers among the gurus. It's probably not going to get you a job. It doesn't mean you can code your way out of a wet paper bag. It's just the start of your journey in Java.
For me, it was something I wanted to prove to myself - a self-taught, entry-level programmer at the time - I could get. It helped me tremendously in my understanding of basic Java, so I don't regret obtaining the cert one bit. I also realize I have a LONG way to go. So, good luck, study hard, practice, practice, practice, and let us know how you do! If I can be of any help, let me know. :o)
Sun's Java Certification website
Mock exams
http://www.javacertificate.com/
http://www.javaranch.com/certification.jsp
http://www.jchq.net/
http://www.danchisholm.net/

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.

Microstation J java programming?

Hi
Can anybody here help me in programing for Microstation?
I don't seem to be able to get anything going ... even the old HelloWorld thing won't run from the key in. I realise this might be the wrong forum, but don't know where to start looking. Any clues.
I am java certified but not very experienced, could really do with some help on this one.
Cheers
Steve

this is an example of the failure of the Java
Certification Exam. How can a person pass the exam by
just memorizing and not using the product? It makes a
mockery of the exam especially when this person
applies for jobs and says that they are Java
certified. It devalues the certification for those
that are experienced and knowledgable about Java. I
predict that in a few years, the Java certification
will have about as much value as a Novell CNE. That
and 50 cents will get you a cup of coffee. Forgive my
ranting on this subject, but it just shows the lack of
certification value.No I do not forgive you ranting; your attitude devalues this forum. I would like to point out that I took the certification this year after the format had been changed to ensure that pure memorization of the material would not be enough to pass. I have written many applications both standalone and integrated with other software. My problem is not with java itself but in implementing it in the microstation environment. This is why I pointed out that I was not sure if this would be the correct place to ask the question. Don't bother responding if you have nothing constructive to say.

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

Java Programming Exam v1.4

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