New Java developer... hello everyone
Hello everyone,
I just wanted to introduce myself. My name is Rusty Rothwell, and I am finally jumping into Java. In High School I learned ColdFusion, ASP, C++, and Basic. I remember none of that. I am however a intermediate JavaScript programmer, great with HTML, DHTML, and alright at CSS. I am good with the logic and syntax, but the object oriented way of thinking is new to me. I miss scripting :)
I am a sophmore (almost junior ) at the University of Louisville in Louisville, Kentucky. I am majoring in Business Administration/Computer Information Systems and I work 3rd shift at UPS (they pay for school.)
Anyways, I just wanted to introduce myself. I am taking CIS 201 (the intro to our major) this semester. I got a 98% on the JavaScript 1/2 of the class (this is a 6 hour class) ... and I am doing great in Java so far. We did however just start Java, and despite having a good grade thus far, I am really confused and frustrated with Java.
You will prob. be seeing me around on the forums, as I have to learn this.. for school, and my career.
I am going to check out this Duke's Dollars thing ... it will be some easy money for you guys! :)
- Rusty Rothwell
I would agree with karianna, its not as much as what you learn its your ability to grasp concepts and learn new ones quickly. In college I took the typical courses in C, C++, JAVA, Perl, HTML, JavaScript... ect. My first job hired me for my JAVA skills but quickly wanted me to be able to program in other languages. One time I was given roughly overnight to learn C#.net. So learn the OOP concepts, how classes work, and structure. They remain more or less the same. The syntax changes hide this, visible that, all of which can be easily figured out.
Similar Messages
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I have a task to do and am really stuck at the first hurdle.
I have to design a Personal Organiser in BlueJ where I have to:
* add a new entry to the contacts list in the mext vacant location
* retrieve a contacts details
* modify entries
* be able to remove entries
I am completely new to programming and I have little knowlegde.
If anybody would be kind enough to help me can they please let me know.
Any help would be much appreciated.
ThanksIf you're completely new and stuck then start here: http://java.sun.com/docs/books/tutorial/getStarted/cupojava/
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[ANN}: New Java developer poll
Check out the JDeveloper home page for the new weekly poll and let us know which software configuration/ version control management tool do you use.
If you answer "other" - please reply to this thread with the tool you use.http://otn.oracle.com/products/jdev on the right side in case you are wondering. Make your voice heard.
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Hello everyone: I am going to buy a new ipad in Australia and after that I am going back to China. I am just wondering if I can use it in China without any problem? Do I have to unlock or something like that?
The iPad is not locked. Read the specifications.
http://www.apple.com/ipad/specs/ -
hello everyone! i have a new macbook pro and i want to download aperture. my app store says it is already installed (on my old macbook pro). how do i install aperture from the app store in this instance please?
Are yoy sure that Apeture is not in the Applications folder of the new system? If it is move it to the trash and the App Store will let you download Aperture from it.
You will need to make sure you use the same Apple ID you used to purchase it in the past.
regards -
Hello everyone. As a new Mac user, I would really like to know the easiest way to move my music files from my old PC to my MacBook? Do I move only the files, the entire iTunes and how? I have a lot of music so it is not a solution with iPod/iPhone.
Your best option is to post this in the iTunes forum.
Ciao. -
Hello Everyone, I'm new to this forum and I'm pretty igno...
Hello Everyone, I'm new to this forum and I'm pretty ignorant when it comes to networking so please bear with me. I have a WRT54GS w/SpeedBooster. My family an I recently took a trip. We've been getting a lot of bad weather here in the Midwest so I chose to unplug everything when we left. I fired up my laptop tonight and it did not automatically connect to my network like it usually does so I refreshed the network list and mine will not show up. However, an unsecured network with a really good signal does show up (I'm not sure if it's mine or not). Anyway, this has never happened before so I don't know where to start. Any help would be greatly apprciated. Thanks. Jon
Use your desktop to set up your wireless network.
XP
go to My Network Place. You will see a monitor next to a globe with the name Linksys wrt54gs. click on it and it will take you to the sign in page for your router.
Vista
Go to Network. You will see router Linksys wrt54gs. right click on it, then click on view device webpage. you will be on the sign in page for your router.
Use admin or your password to sign in
Next click on wireless
Set wireless mode to mixed
Change network name from linksys to ?
enable ssid
save settings
click on wireless security
Set security mode to wpa2 personal
Set new password
save settings
Go to laptop
Find new network
right click on network name
click on properties
change your properties to match those on router under wireless security
Greetings from Northern Ontario, Canada -
Java development on new intel hardware
Hi,
Wasn't too sure if this was the appropriate forum or not. I'm curious as to how well java development on the intel macs are from a hardware POV.
I'm considering a Mac Mini (cuz the desktops aren't out yet) and was wondering if that would be sufficient hardware to do java dev on.
I'm sure most of you here have done it on the Mini (or iMac). Can you share your experiences?
Thank you,
GeorgeI'd say any concerns about Java on Intel are unfounded. It just works and the new HW is the fastest ever (OK, unless you can really use quad cores and 64 bits).
I wouldn't say mini is a good deal overall (depends what you like and/or already have), but I'm sure that even a Solo one will handle an IDE well. I've been using a Pentium-M 1.5 GHz Windows laptop for 3 years now and Eclipse is just fine. Of course more RAM is good, I find 1 GB adequate for most purposes. One can always max it later.
Eclipse 3.2 M5 is Universal, you'll need that one for Intel. I tried to run NetBeans 5 and IDEA on my machine and they worked fine.
iMac Core Duo 1.83 GHz Mac OS X (10.4.5) 1GB RAM -
HT4759 Hello Everyone, I'm new to the icloud
Hello Everyone, I'm new to the icloud, my understand is to that I can sync my iPhone 4s contacts with iCloud and my Desktop Outlook contacts, but when I did sync my Contacts on my iPhone contacts has double. However, my desktop Outlook hasn't changed.
Good afternoon,
what i think that you had contacts in Outlook and in the device and when you activated iCloud
you did merge and not replace, as resolution you need to desable contacts in the settings of iCloud on the iPhone
and then sync contacts via iTunes.
after that activate contact but you need to do replace (before all this check in www.icloud.con if the contacts are not in double also because if they are you need to remove manually )
i hope this help. -
Hello everyone !
As any developer I got the iOS 7 beta on my iPad mini , before few days when I used my iPad forgot my passwaor, and I can't unlock it using the iPad , When I plug it on my window so I can restore it using iTunes , I got to errors , once "Unkown error 3004" and once "It's not eligble".
I hope you can help me.
Thanks,iOS: Unable to send or receive email
http://support.apple.com/kb/TS3899
Can’t Send Emails on iPad – Troubleshooting Steps
http://ipadhelp.com/ipad-help/ipad-cant-send-emails-troubleshooting-steps/
Setting up and troubleshooting Mail
http://www.apple.com/support/ipad/assistant/mail/
Server does not allow relaying email error, fix
http://appletoolbox.com/2012/01/server-does-not-allow-relaying-email-error-fix/
Why Does My iPad Say "Cannot Connect to Server"?
http://www.ehow.co.uk/info_8693415_ipad-say-cannot-connect-server.html
iOS: 'Mailbox Locked', account is in use on another device, or prompt to re-enter POP3 password
http://support.apple.com/kb/ts2621
The iPad's Mail app has no provisions for creating groups. However, you can use a third party app that many users recommend.
MailShot - https://itunes.apple.com/us/app/mailshot-pro-group-email-done/id445996226?mt=8
Group Email - https://itunes.apple.com/us/app/group-email!-mail-client-attachments/id380690305 ?mt=8
iPad Mail
http://www.apple.com/support/ipad/mail/
Configuration problems with IMAP e-mail on iOS with a non-standard SSL port.
http://colinrobbins.me/2013/02/09/configuration-problems-with-imap-e-mail-on-ios -with-a-non-standard-ssl-port/
Try this first - Reset the iPad by holding down on the Sleep and Home buttons at the same time for about 10-15 seconds until the Apple Logo appears - ignore the red slider - let go of the buttons. (This is equivalent to rebooting your computer.)
Or this - Delete the account in Mail and then set it up again. Settings->Mail, Contacts, Calendars -> Accounts Tap on the Account, then on the red button that says Remove Account.
Cheers, Tom -
New web development java technologies
hi friends
get me an area/problem in web development were we can use new java technologies.Are you asking for problem domains to try out the latest and greatest Java technologies, or are you asking us to give you new business ideas?
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I'm a new bie for JAVA Development
Hi All,
I'm going to start JAVA development as my full time so far I was in support. I have worked with the basic level of JAVA as a support engineer. I have read Kathy, Sierra's Head First JAVA and the SCJP preliminary exams books. I wish to know for what books I can go on to read next. Seeking for friends's and experts suggestion before I move to buy. Your suggestions and ideas are welcome.
Thanks
Mohammed@@Hi Mohammed,
for starters it's Java (no acronym). Books are a very subjective thing. Have a look at the ratings and comments on different books on amazon, visit a local bookstore and flip through a couple of books. Nobody here knows what you'll need int future.
Regards -
Hello Everyone,
I have a MacBook older model with me.I am running 10.7.6 on that, I was trying to use BootCamp to install windows on my mac. Since BootCamp can only work on a single Volume, I partitioned my Hard Disk to one volume.
Using BootCamp I installed windows and everything worked fine. After installing windows and testing everything, I switched back to OS X and this time I tried to make another partition on my single portioned Mac volume and named it Backup. That too worked. Now I have three Volumes
1)Development2)Backup3)BootCamp.
Next when I switched to Windows, It should the classic error, No Bootable device found, please insert a Bootable CD and press any key. When I tried to enter my Mac OS X install DVD and by pressing option key, it does not show me the proper Mac OS X development volume. It keeps going back to the No bootable device found message.
Any help will be much appreciated
Regards
Mithunyou can't add a partition in between - you put Windows to a new partition number.
GPT (GUID)
EFI
Mac HFS
Lion Recovery
Windows
And now you have two HFS
One partition and one Windows (plus Lion Recovery).
If you were to have more, it can't be before Windows for one thing. -
hello everyone, i am a student from singapore doing my project on jsp, can't seem to find the java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error in INSERT INTO statement.
This is my code
<%@ page import = "java.sql.*" %>
<%@ page import = "java.util.*" %>
<HTML>
<HEAD><TITLE>CUSTOMER RECORDS</TITLE>
</HEAD>
<BODY>
<H2>Please Fill in the New Customer Records</H2>
<TABLE BORDER=1 WIDTH="300" CELLPADDING=0 CELLSPACING=2>
<FORM ACTION="AddCustomer.jsp" METHOD="POST">
<TR><TD>Customer ID</TD><TD> <INPUT TYPE=TEXT NAME=custid></TD></TR>
<TR><TD>Company Name</TD><TD> <INPUT TYPE=TEXT NAME=compname></TD></TR>
<TR><TD>First Name</TD><TD> <INPUT TYPE=TEXT NAME=fname></TD></TR>
<TR><TD>Last Name</TD><TD><INPUT TYPE=TEXT NAME=lname></TD></TR>
<TR><TD>Billing Address</TD><TD><INPUT TYPE=TEXT NAME=badd></TD></TR>
<TR><TD>City</TD><TD> <INPUT TYPE=TEXT NAME=city></TD></TR>
<TR><TD>State/Province</TD><TD> <INPUT TYPE=TEXT NAME=statep></TD></TR>
<TR><TD>Post Code</TD><TD> <INPUT TYPE=TEXT NAME=pcode></TD></TR>
<TR><TD>Country</TD><TD><INPUT TYPE=TEXT NAME=country></TD></TR>
<TR><TD>Phone Number</TD><TD><INPUT TYPE=TEXT NAME=pnumber></TD></TR>
<TR><TD>Fax Number</TD><TD> <INPUT TYPE=TEXT NAME=fnumber></TD></TR>
<TR><TD>Email</TD><TD> <INPUT TYPE=TEXT NAME=email></TD></TR>
<TR><TD>Different Ship Address</TD><TD> <INPUT TYPE=checkbox NAME=diffsadd></TD></TR>
<TR><TD>Ship Company Name</TD><TD><INPUT TYPE=TEXT NAME=scompname></TD></TR>
<TR><TD>Ship First Name</TD><TD><INPUT TYPE=TEXT NAME=sfname></TD></TR>
<TR><TD>Ship Last Name</TD><TD> <INPUT TYPE=TEXT NAME=slname></TD></TR>
<TR><TD>Ship Address</TD><TD> <INPUT TYPE=TEXT NAME=sadd></TD></TR>
<TR><TD>Ship City</TD><TD> <INPUT TYPE=TEXT NAME=scity></TD></TR>
<TR><TD>Ship State/Province</TD><TD><INPUT TYPE=TEXT NAME=sstatep></TD></TR>
<TR><TD>Ship Post Code</TD><TD><INPUT TYPE=TEXT NAME=spcode></TD></TR>
<TR><TD>Ship Country</TD><TD> <INPUT TYPE=TEXT NAME=scountry></TD></TR>
<TR><TD>Ship Phone Number</TD><TD> <INPUT TYPE=TEXT NAME=spno></TD></TR>
<TR><TD>Ship Fax Number</TD><TD> <INPUT TYPE=TEXT NAME=sfno></TD></TR>
<TR><TD>Ship Email</TD><TD><INPUT TYPE=TEXT NAME=semail></TD></TR>
<TR><TD>Notes</TD><TD><INPUT TYPE=TEXT NAME=notes></TD></TR>
<TR><TD><INPUT TYPE=Submit VALUE="Add to Database"></TD></TR>
</FORM>
</TABLE>
<%
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection connection = DriverManager.getConnection("jdbc:odbc:db","","");
Statement statement = connection.createStatement();
Enumeration parameters = request.getParameterNames();
if(parameters.hasMoreElements())
String custid = request.getParameter("custid");
String compname = request.getParameter("compname");
String fname = request.getParameter("fname");
String lname = request.getParameter("lname");
String badd = request.getParameter("badd");
String city = request.getParameter("city");
String statep = request.getParameter("statep");
String pcode = request.getParameter("pcode");
String country = request.getParameter("country");
String pnumber = request.getParameter("pnumber");
String fnumber = request.getParameter("fnumber");
String email = request.getParameter("email");
String diffsadd = request.getParameter("diffsadd");
String scompname = request.getParameter("scompname");
String sfname = request.getParameter("sfname");
String slname = request.getParameter("slname");
String sadd = request.getParameter("sadd");
String scity = request.getParameter("scity");
String sstatep = request.getParameter("sstatep");
String spcode = request.getParameter("spcode");
String scountry = request.getParameter("scountry");
String spno = request.getParameter("spno");
String sfno = request.getParameter("sfno");
String semail = request.getParameter("semail");
String notes = request.getParameter("notes");
try{
statement.executeUpdate("INSERT INTO Customers(Customer ID,Company Name,First Name,Last Name,Billing Address,City,StateProvince,Post Code,Country,Phone Number,Fax Number,Email,different ship address,Ship Company Name,Ship First Name,Ship Last Name,Ship Address,Ship City,Ship StateProvince,Ship Post Code,Ship Country,Ship Phone Number,ShipFax Number,Ship Email,Notes) VALUES ('"+custid+"','"+compname+"','"+fname+"','"+lname+"','"+badd+"','"+city+"','"+statep+"','"+pcode+",''"+country+"',''"+pnumber+"',''"+fnumber+"',''"+email+"',''"+diffsadd+"',''"+scompname+"',''"+sfname+"',''"+slname+"',''"+sadd+"',''"+scity+"',''"+sstatep+"',''"+spcode+"',''"+scountry+"',''"+spno+"',''"+sfno+"',''"+semail+"',''"+notes+"')");
}catch(SQLException sqle)
out.println(sqle);
%>
<ALIGN=CENTER>Click here to go back to Staff's MainPage
</BODY>
</HTML>
Please help me. Thank you very much sorry for any inconvenience caused.
Cheers
mvpWelcome to the Sun forums.
1. Please post your code using code tags, this formats it so that it is easier for people to read and understand it. Click on 'CODE' above the text area when posting.
2. As far as possible, please post an SSCCE
3. Please give complete information, your current post is missing the actual error stack trace. If required, use [Exception#printStackTrace()|http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html#printStackTrace()] to get the complete stack trace.
4. Please don't paraphrase errors or type in code from memory. This tends to mask the actual error and introduce additional problems. Copy-paste your stacktrace and/or code. -
Seeking advice for a self-teaching programme of new Java techs
Hello,
after a few years of technically poor projects (I learnt a lot in terms of process, quality, and non-Java technologies, by the way), I'd like to catch up with mainstream Java development.
I am preparing a programme to learn a few technologies I have missed over the past years. I plan to develop a couple of utilities (simple CRUD apps) on my spare time, gradually including bits and bits of the bricks I want to grasp.
I need some advice though to make this learning effective.
My first priority is to invest in reusable knowledge, so I will stick to "standard" bricks, and will aim mostly at off-the-shelf tools that work out of the box
(for example, I don't want to spend hours to fix a DB install&configuration issue, as I know I will probably never be paid for that kind of job).
Specifically, the technologies I plan to embrace are:
* Java SE 5 and 6
* jUnit 4
* Spring
* EJB 3 & JPA
* Web UIs
Here are the points where you might help me:
* JDK 1.5 vs 1.6
No real doubt here, the biggest language gap was introduced by 1.5. If I'm correct, 1.6 essentially brings new APIs; as long as those APIs are not my primary target (I'll try them only after I've completed my first round of catch-up :o), I am not missing much language-wise, am I correct?
I could also jump directly to 1.6, ignoring its new APIs, and concentrate on
1.5 language features, but the risk is stability (losing time with a 1.6 beta bug).
* jUnit 4
Nothing special, except I have practically read nothing about it on these forums (contrast this with TSS, where there are regular threads disputing the relative merits of jUnit vs TestNG).
Is v4.0 a non-event? It seems to bring some niceties (mark test components using annotations), but how much comfort did it bring to those of you who have used it over jUnit 3.8.1?
* Spring
Leaving aside that it's on my must-do list, I actually wonder which version I should try?
I also feel I should try it first on a non-EJB app, to avoid mixing concerns. I will skip the JDBC wrapping API though, as I already have a lot to do with other persistance APIs.
Any feedback?
* EJB3/JPA
(I formerly worked with generation 2.1 of the EE specs)
1) The biggest issue here is to find a reliable EJB3 container.
* I've heard JBoss is EJB3-ready, but I don't think it's certified yet.
* Project GlassFish (Sun-driven open-source JEE5 container) is still in the making
* Sun SASP9 is, well, released, but I don't know how much of JEE it supports, and haven't investigated into the licensing details yet
Any feedback on what you're using as a JEE5 container?
2) As far as EJB vs JPA goes, I also have the plan to use the persistence API
outside of EJB (likely, I will develop the same simple CRUD app twice,
once as a Webapp and once as as Swing app, both over the same DB schema).
But maybe this is pointless, as the entity annotations and API are agnostic; have you experienced some difference that deserve thorough learning?
3) Obviously I will need a DB. If the EJB container includes one, fine, at least for the EJB part, otherwise I'll need to install and configure one, that will need to run on a desktop PC on MS WIndows, and preferrably include a handy SQL client console for manual verification.
I know enough of SQL to build even a sub-optimal application schema. However I know nothing of a DB administration, and I don't want to invest in that direction.
Any advice as to a simple off-the-shelf free DB that runs on Windows?
* Web UIs
The dilmena here is two-fold:
1) In term of "view" technology, I hesitate between plain JSP and JSF
If I understand correctly, JSF is a specification for reusable view components.
My local job market leaves me no oportunity to be a UI component developer, whereas I am more likely to someday be tasked to integrate 3rd-party UI components into a business project.
Is my surface understanding of JSF correct? In this case, how much of JSF should I know if I don't have to develop JSF components?
2) In terms of controller, as part of my Spring learning, I'll probably have a look into Spring MVC.
My question is, how much of the servlet/JSP API does springMVC show/hide?
Is it a good idea to use springMVC to learn servlets and JSPs, or should I stick to manual servlet+JSP?
I should add that I've worked with servlets/JSPs formerly (as of J2EE 2 or 3),
I only need to dig new servlet/JSP features.Jim_Found wrote:
okay, so normally you would write the following if-elseif block in order to achieve this
if (MessageType.TYPE_A.equals(myMessageType)) {
// do this
} else if (MessageType.TYPE_B.equals(myMessageType)) {
// do that
} else if ...
but, if you use <this design pattern> and create this <class>, you can suppress the above block to
CoolClass coolObj = new CoolClass();
coolObj.doMagic(myMessage);Funny enough inside the doMagic() method would be something along the lines of
if (MessageType.TYPE_A.equals(myMessageType)) {
// do this
} else if (MessageType.TYPE_B.equals(myMessageType)) {
// do that
} else if ...Mel
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