The 5 Basic Concepts of any Programming Language – Concept #5

by Trevor Page on July 7, 2012

 
Welcome back to our fifth lesson in our five part series on the 5 basic concepts of any programming language.  In today’s java tutorial, the concept we’ll talk about concept is tools.

  1. Variables
  2. Control Structures
  3. Data Structures
  4. Syntax
  5. Tools

 
What are tools?  Well, I don’t think we need to go to wiki to define this one, as many of you should already know what a tool is.  In the real world, a tool is something (usually a physical object) that allows you to get a certain job done in a more timely manner.  Well, this holds true with the programming world too.  A tool in programming is a piece of software that, when used while you code, allows you to get your program done faster!

There are probably tens of thousands, if not hundreds of thousands of different tools across all the programming languages, but I’ll focus on the main kinds tools that everyone is likely to use.

The first and most important tool, in my opinion, is an IDE.  An Integrated Development Environment is a piece of software that will make your coding life so much easier.  IDEs will check the syntax of your code to ensure you don’t have any errors, they will organize your files and give you a nice way to view them (i.e. applies colour schemes to your code so it’s easier to interpret), they tend to have code completion (which will actually fill in some code for you, in common scenarios), as well as allow you to navigate through your code easily.  There are many other advantages of using an IDE, but I think you get the idea.  In the Java world, the IDE I use most often is:

This IDE is free and full of features, it’s what I use whenever I program (both at work and at home)

For the purposes of this java tutorial, I will focus on just this one tool, as it will be the most important thing you use when you begin programming. So, let’s install Spring STS! The first thing you’ll need to know is that the Spring STS IDE, and all IDEs in Java, require the Java Development Kit to be installed on your computer, so how about we download that now as well here.

Step 1 – To download the Java Development Kit (JDK), go to the Oracle Java Development website

 

Step 2 – Run the downloaded file and leave all options default as you click next

Special Note: This installer will likely popup another installer for the Java Runtime Environment (JRE), so if it looks like your install has stopped for no reason, check to see if you have any other pop-ups that may be hidden that require you to click Next.

 

Step 3 – Click this link to go to the Spring STS download page and skip the registration (if you like):

 

Step 4 – Choose the appropriate version of STS to install, I’ve highlighted the windows versions but I believe there is a MAC version as well:

 

Step 5 – Now, once you’ve downloaded that file, run it and start the installation process. Leave all the options set to their defaults as you click next, until you get to this screen.

Here you will choose the directory where you installed your Java SDK, the default location is: ‘C:\Program Files\Java\jdk1.6.0_33′

 
There, now you have successfully installed Spring STS and you are ready to begin programming! That’s all I will cover on tools for today, as I will leave the discussion of other tools to future posts as they are required. So, thank you for joining me on this five part series about the basic concepts of the programming languages, you are now ready to learn how to write your first java program (also known as the Java Hello World program). If you have any questions about this series, by all means leave a comment and I will get back to you as quickly as I can!

One last thing, if you feel like you enjoy my teaching style, and you’ve learned a lot in these last 5 tutorials, how about your check out my eBook via http://javapdf.org. It’s an organized and easy way to consume these Java tutorials, plus there’s a comprehensive guide on how to create your first real web application from start to finish. Cool huh?

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Top 7 Tools Java Professionals Use Daily
The best part is, 85% of these tools are FREE
Download this 1-page PDF that will show you exactly how to get your hands on all these tools today.

{ 82 comments… read them below or add one }

ajay tiwari July 20, 2012 at 9:53 am

thank you for useful information.

Reply

Jerome Calhaun July 27, 2012 at 5:53 am

I do not even know how I ended up here, but I thought this post was good. I do not know who you are but definitely you’re going to a famous blogger if you are not already ;) Cheers!

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Neha July 31, 2012 at 1:37 pm

Thank you..this was very good for beginners..i wish if you can help us with java in depth by providing info on further more topics and even on advance topics such as creating jsp pages,struts and swing in java..also if you can refer and mail the links of some starter level ebooks or hard copy books for advance java then that could also be very useful..
Thanks once again..it was like a knowledge with fun session..though i know basic java i was still not bored even for a sec..good job :)

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Trevor Page August 1, 2012 at 9:35 am

Hi Neha,

Thanks for the kind words. I will be covering topics such as JSPs and the Spring framework (which is similar to struts). I don’t think I’ll be covering Swing, as I don’t really find it very useful in the professional setting. As a web developer I’ll place more emphasis on JSP/HTML/JSTL/Javascript/Spring/SQL.
As for ebooks/hard copy books, I’m not too familiar with any good ones at the moment, but I’ll keep my eyes out if I come across any.

Thanks for your comment and take care,

Trevor

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Garrette Sanislo August 9, 2012 at 8:26 pm

Thank you SO much for this tutorial! I am a beginner and have had trouble finding a place that explains things like what the curly brackets are for and where you put them. I was wondering though, I found another great place for video tutorials that said to download notepad++. Would that do the same thing as Spring? Can I use it instead? Thanks again! I really appreciate it!

Garrette

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Trevor Page August 9, 2012 at 8:43 pm

Hi Garrette,

I’m happy to hear you like my content and I’m going to start producing videos myself soon. I wouldn’t suggest using notepad++ as an IDE, as Spring STS has far more to offer in terms of Java programming. I would still recommend downloading it though as its a great replacement for the built in windows notepad!

If you’re looking for an alternative to the Spring STS, there’s also netbeans and intelliJ. You could google those and see if they are to your liking.

Hope that helps,

Trevor

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MCMasta August 8, 2012 at 5:05 pm

Hello there.
Excellent writing, great take on explaining coding to beginners! Having some experience in Java, Lua and Bash, I didn’t really learn anything, except for new ways of explaining these concepts, but it is a great, easy to understand article! Thank you, this goes into my bookmarks!
//MCMasta

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Shaune Wallace August 8, 2012 at 7:26 pm

Great post. It gave me some useful knowledge on how programming works and should make it easier as I progress forward.

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Rich August 8, 2012 at 8:52 pm

Very interesting article. Followed everything through to the end. However, when I went to download the “Spring Source Tool Suite” I could not find it on the link you provided. I searched the site but came out empty handed. Has this suite been replaced by another toolkit?

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Trevor Page August 8, 2012 at 9:01 pm
Michael Delaney August 8, 2012 at 8:55 pm

Well done and thank you for contributing to the newb force.

Reply

Soham Chowdhury August 8, 2012 at 10:34 pm

Well-written post. You have a lucid style of writing – looking forward to reading more from you.
Oh, and excellent domain name :)

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Trevor Page August 9, 2012 at 6:38 am

Many thanks Soham,

I’m excited to hear that you think my writing style is desirable, I guess it’s not everyday you get a programmer who can write in plain English ;)

Reply

Kapila August 9, 2012 at 12:49 am

Though I am not a beginer to programming. (Its almost 15 years Since I stopped programming). I find this very interesting. And I may even start programming again.

Kapila

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Trevor Page August 9, 2012 at 6:34 am

Hi Kapila,

I love programming and I love the idea that I can help people either start programming, or get back into it! So your comment really strikes a chord with me, best of luck in the future to you :)

Reply

Todd August 9, 2012 at 10:46 am

Great review on core concepts of programming. I am going to recommend this on my blog. Any chance you can address the function of libraries and frameworks to programming languages? As I understand it, Java is one of the only languages that does not necessarily need a framework, but for programming as a whole the growing number of frameworks you can use like Rails or Sinatra with Ruby seems very confusing.

Thanks!

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Trevor Page August 9, 2012 at 12:38 pm

There are certainly frameworks that exist for Java that will help in creating applications (such as Spring or Struts, Hibernate or JPA etc.) These usually help by forcing you to use well established design patterns in your coding. I will certainly be elaborating on Spring and Hibernate as my tutorials continue to be written.

Currently my site has only been live for a month, and I’ve only been writing content for that long, so I just need time to get all of my “interesting” knowledge out into the cloud!

So Thanks for following along Todd and great question :)

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Kwan August 9, 2012 at 12:16 pm

I cant install the programs! neither of them work when i download the installer

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Dave August 9, 2012 at 12:21 pm

I was looking for a way to ease into Java after some basic experience with VBA and SQL. Thanks for posting…you’ve provided an excellent balance of insight and encouragement to keep frustration at bay.

Reply

Ashraf Uddin August 9, 2012 at 1:49 pm

out of all Java tutorials I have come across, this one is the best, the author speaks to you like he is right next to you and understands you

Reply

Trevor Page August 10, 2012 at 6:43 am

Hi Ashraf,

I’m humbled by your comment, I couldn’t ask for a better review! Helps motivate me to keep on writing for you guys and gals. Thank you very much :)

Trevor

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Kat Orta August 10, 2012 at 12:32 pm

Thanks, I feel like I really grasped the concepts and I have read lots of articles trying to ‘get this’. I was never bored and I like your style. Best of luck to you!

Miss Kat

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Sharv August 10, 2012 at 11:47 pm

Thanks so much for these short concept tutorials! I’m definitely not a beginner because I learned Java in school 2 years ago, but since then, I haven’t coded at all. I’m just getting ready to go back to school now, and I’m so glad you refreshed me on some of the Java basics I had forgotten. So great tutorials, thank you! I would definitely recommend them even to people who aren’t coding beginners.

Reply

Trevor Page August 11, 2012 at 2:55 am

You are very welcome! It’s a pleasure

Reply

Busayo August 13, 2012 at 11:45 am

This is AWESOME!!! You have NO idea how many Java books and materials i have downloaded and bought in my bid to learn the language. I have NEVER been able to make it through 3 chapters! I have even had the JDK installation file on my system for over six months now. Didn’t install it cos i couldn’t find a material that laid out the concepts in plain simple English. I am from Nigeria and i am sort of a DIY person, but Java has been proving difficult, maybe because i didn’t have suitable tutorials. I stumbled on your site by mistake via google reader, and I think i just found the RIGHT tutorial! Please don’t stop posting as i am going to be following everything step by step. Already got java installed along with your springsource recommendation. I am hot and ready to go along with you EVERY STEP OF THE WAY! Great site and great writing style.

Reply

liam August 16, 2012 at 7:27 am

I’m stuck on step 5 ‘C:\Program Files\Java\jdk1.6.0_33′ doesn’t work for me great tutorial.

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Trevor Page August 16, 2012 at 9:03 am

In Step 1 on this page, you downloaded the JDK (Java SE Development Kit 6 Update 34) and then ran that file to install the JDK. The default directory for this is ‘C:\Program Files\Java\jdk1.6.0_33′. If you had chosen a different directory, then you’ll need to point to that folder in Step 5 (by clicking Browse and navigating to the root JDK folder… i.e. \jdk1.6.0_33).

If that doesn’t fix your problem, then you’ll have to give me a bit more detail as to what you’re stuck on,

Thanks for your comment and best of luck,

Trevor

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liam August 19, 2012 at 4:51 pm

It says ‘The chosen director should exist step 5/8 i made sure its all right and think maybe its
something to do with step 3/8.

Thanks for replying so fast.

Liam.

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Trevor Page August 19, 2012 at 5:26 pm

I’m not clear on where you’re stuck.

1) Have you downloaded the JDK?
- If not, where are you having problems?

2) Have you installed Spring STS?
- If not, where are you having problems?

3) Are you using a MAC or a Windows PC?

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Ya September 16, 2012 at 4:20 pm

This is exactly what ive been looking for, can’t wait to dig into the rest of your site! question though, I installed JDK into the default folder C:\Program Files\Java\jdk1.6.0_34 and i am trying to install spring into the same directory but it gives me the warning “directory already exists! are you sure you want to install here and possibly overwrite existing files?”

Do I wanna do that? or did I miss something?

Thanks again

Reply

Trevor Page September 16, 2012 at 4:36 pm

Glad you found my site, I think you’ll love it :)

Let me know if you have any other questions, just post them in the comments section, or like my Facebook page and shoot me some questions there.

Trevor

Reply

Ya September 16, 2012 at 4:24 pm

wait, my bad, huge mistake…
thanks again for your blog

Reply

Okolo Ifeanyi September 20, 2012 at 4:18 am

Helo,
Words cannot express my gratitude to you for your wonderful and second-to-non tutorial in Java. You have set me on my feet in the great path of Java. I hold you in high esteem. You must be a genius.

Pls, educate me about Java Script and application. I will be grateful for your expected cooperation.

I am Okolo I.J.K.
Physicist.

Reply

Trevor Page September 20, 2012 at 8:29 am

Hi Okolo,

Thank you for your kind words, I’m glad you have stumbled upon my site and enjoy my content.

I will eventually be writing tutorials on JavaScript as well, so just keep on tuning into this blog :)

Reply

Marcus October 7, 2012 at 9:40 am

Thanks alot. For real this a good motivation.
To be a good programmer how many languages one is supposed to learn?

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Trevor Page October 7, 2012 at 11:10 am

Hey Marcus,

You can be a good programmer with just one language under your belt. There’s nothing to say that you’ll need to learn more than one. But I find that if you start to program as part of your career, it never hurts to keep challenging yourself and learning new things.

I’m really only an expert at Java, but I also know how to program with Objective C (I’d say I’m at the beginners level with that language), but since the fundamental concepts are very similar between Java and other Object Oriented programming languages, it’s not too difficult to pick up another language in a couple of months. I know this, cause that’s exactly what I did. I went from ZERO knowledge of Objective C, to creating two fully functional mobile applications and having them published in Apple’s iTunes store in a few months. I fully attribute this to the knowledge that I possess in Java.

So, great question Marcus, and I hope that helps you out!

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christine October 8, 2012 at 6:56 am

thank you for this, i really appreciate your effort. As for me, i read computer in school but always running away from programming, because i think is somehow difficult. But with this, i am rest assured that i can become a good programmer very soon. looking forward for more!. once again thank you, God bless u and increase in tremendously.

Reply

christine October 9, 2012 at 3:33 am

I can’t run it, it was complaining that ‘ this programe requirs a Java Runtime Environment 1.5.0. pls help out.

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Trevor Page October 9, 2012 at 5:35 pm

Two things could be going wrong.
1. Have you properly followed all the steps on this page, specifically Step 5 where you point your STS installation to the JDK that you downloaded? If you left the installation from step 2 as default, it should be ‘C:\Program Files\Java\jdk1.6.0_33′
2. You need to properly point your Project specific settings to the right Java compiler level. This is done by right-clicking your project in STS (in the package explorer, usually on the left side of your IDE), then go to properties, then click on the “Java Compiler” item on the left side of the properties popup. Confirm that the “Compiler Compliance Level” is either set to 1.5 or 1.6… preferably 1.6 (NOT 1.7)

Reply

sanjay October 15, 2012 at 4:30 am

hi
i am beginner in java,i want to do ocpjp certification plz provide some information for that .with appropriate material for preparation

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Trevor Page October 15, 2012 at 8:55 am

By the looks of it, the oracle certified professional Java programmer certification will require that you are well versed in the Java programming language. You’ll need to know Java SE 5 or 6, which means you’ll need to have an understanding of key concepts like Collections and Templates, as well as Core Java.

Reply

sanjay October 15, 2012 at 3:20 pm

thanks Trevor
how much it will cost or material for preparation,if u suggest

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Trevor Page October 16, 2012 at 9:01 am

I’m sure there are courses that you could take that will get you familiar with the layout of the test and what to expect. If you don’t have any knowledge in Java programming, then I’d highly suggest going through free blogs to get a good understanding of how Java works.

Once you’ve got an understanding of how Java works, I’d refer you to one of the best tips for becoming a better programmer, and that’s to challenge yourself. Think of a project that you’d love to code, and dive in head first. It’s a great way to learn how to program. You’ll be feeling lots of pain while you scour the internet trying to understand what to do, but you’ll learn SO much.

Then once you’ve done that, I would suggest actually paying for some courses. It may run you around $100-$200 US

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alex October 17, 2012 at 3:26 am

Hi Trevor,

Would you recommend to use netbeans instead of spring sts?

Regards.

alex

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Trevor Page October 17, 2012 at 8:11 am

I’ve used both, and I personally prefer STS. Mostly because STS has neat built in tools like Spring ROO and the Insight Server (which allows you to test the performance of your code).

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Marcus December 20, 2012 at 7:25 am

Hi Trevor
These are good tutorials. Keep up the good work. You said that you don’t find Swing/AWT to be very useful in a professional setting. What then do professional java developers use to create GUIs in enterprise systems? I was under the impression that in order to create desktop applications one would need to use the Swing/AWT framework to create the forms.

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Trevor Page December 20, 2012 at 8:01 am

Hey Marcus,

Great question, if you were in a professional setting and you were creating desktop applications with Java, then you likely would use Swing/AWT. The reality of that situation though, is that there are very few applications being developed for desktops with the Java technology. Most applications created with Java these days are for the web (so you would use HTML/CSS, Javascript for you GUI) or for mobile phones (Android/Blackberry) which have their own proprietary GUI (I know androids is based on XML).

Swing/AWT are okay for teaching, but sometimes I feel like it’s wasted effort to learn, since you’ll likely never use it in your career.

Reply

pooja January 4, 2013 at 9:10 pm

Thanks for taking this initiative Trevor. I have several failed attempts at learning Java, none of those beyond the hello world program. So far I havent felt the urge to quit. Will keep you updated on my progress.

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Trevor Page January 4, 2013 at 11:05 pm

Please do keep me informed, I’m glad to hear I’ve peaked your attention and if you need any help/have specific questions, feel free to ask and I’ll do my best to help out

Reply

tayo January 18, 2013 at 5:18 pm

Wow!!!!dis is so cool,where ave I bn all dis while,I just found d site…..very easy 2 comprehend ,wish I had found it earlier tho,I’ve got an exam on Java on Monday,wish me luck………Keep it up Man

Reply

mini January 29, 2013 at 2:49 pm

Can u tell me y we use try; catch; finally block
in java as m beginner in java

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Trevor Page January 29, 2013 at 4:24 pm

Have you read my article on try/catch/finally yet?

howtoprogramwithjava.com/exceptions-in-java/

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mini January 29, 2013 at 2:52 pm

Very much interesting n easy to understandind
…thank you

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Durim February 5, 2013 at 2:23 pm

Hi Trevor!

Can you help me with these pop up windows ?
When I open my Spring STS, It pops up to me with this window first:
http://i1301.photobucket.com/albums/ag118/dura007k/Untitled1_zps18cbcf09.jpg

After I click OK, another window:
http://i1301.photobucket.com/albums/ag118/dura007k/Untitled2_zps4bc2cdaa.jpg

I have set up JAVA_HOME at Environment Variables:
C:\Program Files\Java\jre7

What’s the problem ?!

Thank you!

Reply

Trevor Page February 5, 2013 at 4:26 pm

That’s alright Durim, I was getting the same errors… it has to do with a service called GIT, which is used for open source project sharing (a content management system). It’s not a big deal, just check the box to say not to notify you about this problem again.

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Durim February 6, 2013 at 2:28 am

Thank you :)

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Patrick Tumusiime March 5, 2013 at 5:08 am

I have JDK installed and also J Creater .currently studying Java in class however am still not yet that good. what i want to know is whether J creater also works as Spring, if no, what’s the difference?? so that i know if i need to download it.

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Trevor Page March 5, 2013 at 9:39 pm

If you’re wondering if J Creator works with the Spring Framework, then yes… J-Creator is just an IDE which helps you to code.

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KC March 5, 2013 at 7:11 pm

Hi, I went to the site to download the Spring Tool Suite but I’m a bit confused as to which version is the latest and most stable version of Spring Tool for Mac OS X 10.8.x. What’s the difference between the versions listed, Groovy/Grails, and milestone versions?

Reply

Trevor Page March 5, 2013 at 9:41 pm

I would suggest downloading the Eclipse IDE if you have a MAC

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Tony Davis March 13, 2013 at 12:21 pm

Hi Trevor,
I stumbled across your podcasts by accident, and immediately became addicted. I guess I’m not a typical reader/listener, as I started programming in 1967 (!), so I’m familiar with the basic concepts that are common to all programming languages, but I’ve never heard them explained in such a clear and entertaining way. I haven’t had any experience with Java – most of my programming was done in assembler, plus a little dabbling in Visual Basic – but I shall certainly continue absorbing as much of your material as I can, and maybe make practical use of it. You have a wonderful natural teaching style. Well done, and may you long continue spreading enlightenment!

Reply

Trevor Page March 13, 2013 at 2:15 pm

Hi Tony,

Thanks for the wonderful comment, I’ve been told many times that my teaching style is great, but I always love hearing new people mention it. I’m really glad you find it entertaining, as that’s part of what I’m trying to do – de-mystify and entertain :)

Take care,

Trevor

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farheen April 21, 2013 at 10:18 am

Hi Trevor,

i have got windows 8 so which IDE & STS should i download

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Trevor Page April 21, 2013 at 11:47 am

I’d say follow the instructions in this video: http://javavideotutorials.net/freeVideos/1.html

I believe the regular 64 Bit version of STS should work with windows 8.

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Oludare Omuse April 23, 2013 at 2:18 am

Thanks. I appreciate this post. However, I notice you highlighted two windows32 installer. Should I downloaded the two before I can start my programming?

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Trevor Page April 23, 2013 at 11:02 am

You’ll need to follow the instructions on the blog post to make sure you install things correctly… there are two different downloads you’ll need, one from Oracle, one from Spring

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farheen April 24, 2013 at 6:27 am

ok… :)

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Huma June 2, 2013 at 9:42 am

Very well written and quite easy to understand. I am not in this field but after reading your article I am definitely looking forward to try. Your way of teaching s very clear and wonderful. I am just loving it. :)

Reply

sambo ebinimi g. June 22, 2013 at 8:58 am

i’m a beginner & very interested in java programming, since i stumbled on this blog i’ve been glued to it. your lucid way of writing makes it more interesting. i’ve gone through the five basic concepts & i’ve read testimonies of people who learnt programming just like me. so i believe by following your teachings i can become a good programmer myself. thanks for being there for us

Reply

asrielfuentes June 25, 2013 at 1:43 am

i like the way you discussed the topic :)
thnx for the help!!!

Reply

asrielfuentes June 25, 2013 at 1:44 am

Can you email me in my email add?

Reply

ivan July 29, 2013 at 2:24 pm

thank you,but where can i get a copy of your e book at no cost/
help me .
thank you

Reply

Trevor Page August 1, 2013 at 10:54 am

A lot of the content from the book is in this blog (which is free). So just flip through all the tutorials here

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SJones September 20, 2013 at 1:30 am

Hi Trevor,

I read your blog and found it very interesting. I wanted to ask you about how I can get to download and install the jdk if I have Windows XP on my computer. I notice the windows it supports is x64 or x86. I don’t have neither. Is it going to hinder me from moving forward with installing it and using it?

Thanks!

Steve

Reply

Trevor Page September 29, 2013 at 6:24 pm

All computers are either x86 (which are the 32-bit windows systems) or x64 (which is 64-bit).

Reply

hwaka asha October 2, 2013 at 12:08 pm

i like the way you do your teaching keep up the spirit .
THANKS

Reply

Binäre Optionen broker November 2, 2013 at 9:14 am

Wonderful beat ! I would like to apprentice at the same time
as you amend your web site, how can i subscribe for a blog website?
The account helped me a acceptable deal. I were a little bit familiar of this your broadcast provided
bright clear concept

Reply

dev March 4, 2014 at 12:57 am

hey..trevor..thanks a lot for your effort..it was really helpful..Am a person with zero knowledge in programming..but after going through this i feel better and have a feeling that anything could be understood when seen in a simple way..i have a lot of doubts..how can i get in touch with u??

Reply

Trevor Page March 4, 2014 at 10:42 am

Thanks for your comment… If you’re really keen on learning and have doubts, I’d strongly recommend you signup for Java Video Tutorials

Reply

Dumi March 20, 2014 at 1:40 pm

Hi Guys
I am new in java i have learnt about basics on java now i would like to learn Lists, List Implementation That Use an Array

Thank You Guys in advance

Reply

Bill April 4, 2014 at 9:30 am

I’m working my way through your blog. Question: What does Spring afford you over Eclipse or NetBeans?

Thx

Reply

Trevor Page April 7, 2014 at 1:56 pm

The Spring Tool Suite provides you with a real time load testing and analytics server as well as some special “views” when you create your web applications using the Spring / Spring MVC frameworks.

Reply

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