Java

TorstenH.11-Jul-12 8:29

TorstenH.

11-Jul-12 8:29

Well done!

I like to mention that "JAVA" is also a slang word for coffee - I don't know if that is the cause of the extensive use, but to my point of view coffee really helps.

regards Torsten
When I'm not working

Richard MacCutchan11-Jul-12 23:27

11-Jul-12 23:27

TorstenH. wrote:
"JAVA" is also a slang word for coffee

IIRC that's what they named the language after.

Nagy Vilmos12-Jul-12 0:11

12-Jul-12 0:11

Originally it was called Oak but there was a copyright conflict so it changed to Java because they drank so much.

Panic, Chaos, Destruction. My work here is done.
Drink. Get drunk. Fall over - P O'H
OK, I will win to day or my name isn't Ethel Crudacre! - DD Ethel Crudacre
I cannot live by bread alone. Bacon and ketchup are needed as well. - Trollslayer
Have a bit more patience with newbies. Of course some of them act dumb - they're often *students*, for heaven's sake - Terry Pratchett

Request for Help in Java Datagrid Implementation.

TorstenH.12-Jul-12 1:23

TorstenH.

12-Jul-12 1:23

That's right. In between they tried to name it "Green" but then moved to the much better term JAVA.

regards Torsten
When I'm not working

haranath.nadella10-Jul-12 18:44

haranath.nadella

10-Jul-12 18:44

Hi,
Iam new to Java.I have a requirement in my project to retrive the data from the table and display in grid format. The grid should support the below mentioned
1)Thumbli Image display
2)On Mouse Over we should zoom the Thumbli Image
3)Edit
4)Delete
5)Sorting
6)Pagination
7)Grid Searching
8)Hyperlinks(To display a Popup & To download a image from table)

Request you to help me on the same at the earlist.

Help on the above is highly apprichated.
Thanks & Regards,
Hari

Re: Request for Help in Java Datagrid Implementation.

Richard MacCutchan10-Jul-12 21:19

10-Jul-12 21:19

No one is going to provide a full solution in this way, you need to start by doing your own research into the classes and Java frameworks that will help you. Start here[^] and see which of these can be of use to you.

How do I decide for class responsibilities?

Neo101018-Jul-12 5:56

8-Jul-12 5:56

How do I decide what types to make and what responsibilities to give them, given a design concept? Should I base myself on user stories/functional requirements in order to decide which responsibilities my classes need?

It's not easy to adhere to the SOLID principle.

For example I have this.. 'make a blog' assignment. I wrote down one of those functional requirements: "a blog entry has to have a title and a body". Does that mean I have to write a class Post with members Body and Title?

Should a Post (BlogEntry) class only have a body and the title is supposed to be the responsibility of another class?
Kind of confusing.

There must be a set of rules that tell programmers how to decide on which objects to make and what responsibilities and implementation to give them.

Any ideas on this?

Thanks

Nagy Vilmos8-Jul-12 6:31

8-Jul-12 6:31

This is something that gets easier the more you practice. Start by writing down in PROPER prose what the software will do. Now take all the nouns out, they are your candidate classes.
Firstly find the items that are synonyms - blog, post, posting and entry will most likely be used to reference the same thing. Then have a look at what is left and if the items actually perform anything or if they just record a state. If all they are recording is state, then they are probably attributes rather than classes. In your case, I think you'll find the body and title are probably just attributes.

However, there is not a single way to do these things and it is an experience thing that will tell you which is best. Alas there is not really enough here for me to give you a fuller answer.

Neo101018-Jul-12 7:44

8-Jul-12 7:44

Hmm.. I learned that the method of taking out nouns and looking at verbs is incorrect. It is more abstract.

Nagy Vilmos8-Jul-12 8:19

8-Jul-12 8:19

So your 1 semester class trumps my 25 years of experience, well done.

I said it is a starting point. With EXPERIENCE you don't need to bother and you can see the classes inherent in a system easily, but that comes with practice. Lots and lots of practice.

Neo101018-Jul-12 8:44

8-Jul-12 8:44

Excuse me? I come from a university with one of the highest reputations there are. We program and work the qualitative way. This isn't one semester. It's my graduate year. I'm actually going to be an Application Developer. There's only so far you can get with 'practice' and 'experience'. Fundamental concepts and methods are far more important. That's why the top engineers get higher ranked without doing the work. Didn't you ever learn that? The tons of math and logic theory I had to process before I came to this point. The years of lectures on Software Engineering. Never underestimate the importance of scholar theory.

Nagy Vilmos8-Jul-12 8:49

8-Jul-12 8:49

Dear boy, I have been there already. FYI, I recently did another degree course - exactly to get an update on the academic theory - and noun/verbal extraction is still a very valid and useful exercise. When, or if, you work professionally, you will understand that there is so much within the problem domain that impacts how classes are decided upon.

Experience is the dog's doo-dahs in deciding how to break down a problem domain to find candidate classes.

Richard MacCutchan8-Jul-12 22:22

8-Jul-12 22:22

CsTreval wrote:
I come from a university with one of the highest reputations there are.

Soon to be lowest.

CsTreval wrote:
I'm actually going to be an Application Developer.

With this attitude you are bound to go far.

Nagy Vilmos9-Jul-12 8:31

9-Jul-12 8:31

Undergraduates are so sweet when they think they know things.

Stingrae7899-Jul-12 4:02

Stingrae789

9-Jul-12 4:02

My graduate university is ranked among the lowest in England, even they taught us that even with experience there is always more to learn. Education is great but never tie yourself to it, what works in theory doesn't always apply to every situation. In industry experience is worth more atleast until you actually have had a few jobs.

Software development is the one field where a specific degree doesn't necessarily make you better than Joe Bloggs who self-taught. Also experience > actual software developed > education as far as I can see

Also lose the idea that top people get paid to do practically nothing you will find that even some CEOs work over 9 hours a day, design and planning may be what they (top engineers) actually get paid for but that still involves thinking and much of that comes as the result of experience.

Neo101019-Jul-12 6:48

9-Jul-12 6:48

Right. At your university they never taught you in the advanced English class about the Dilbert principle? This happens in real life too, you know? Hence the principle. I know some people who get paid very highly and I chat with them for about 50% of the time I'm taking lectures. What does this imply? Well, it implies that they are sitting on their chair all day being lazy and getting paid huge salaries (because I know his function). It used to be that the really hard working and intelligent people were bumped up to manager. Now it's the other way around. If you really believe that hard working smart people get the better salaries, you're wrong. I've experienced nothing like it in the real world. I've worked before as well. I've been programming on a 3 month contract in a company my university suggested. The programmers were just absolutely horrible and cynical people. They were also not very bright. I knew more about programming and computers than they did. Anyway not to drift off the point here. Experience certainly may help in the IT industry of today, but if it wasn't for my university's high reputation (because they have excellent courses and professors) I wouldn't even have had the slightest chance to function as a temporary programmer in a company. I tried before. You have no idea how many 'no' answers I got. Meanwhile, a top paid programmer I know who works for one of the best software development companies can only type with two fingers and can't even do a copy paste in Excel! How fair is that?! Yes, what a world. With hard work you get somewhere.. please.

Dave Kreskowiak9-Jul-12 7:11

Dave Kreskowiak

9-Jul-12 7:11

Wow. That was a bunch of useless, meaningless crap.

Did they also teach you, in your exalted university, that your final year is where you demonstrate that you can apply the techniques and information you've been fed over the last 3 years? If you're asking this question now, it seems that you're in a bit of trouble.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Nagy Vilmos9-Jul-12 8:30

9-Jul-12 8:30

Did your super duper university not teach you what a paragraph is?

Legibility. Learn the word and learn it quickly!

Richard MacCutchan9-Jul-12 8:43

9-Jul-12 8:43

He didn't actually say what the University's reputation was for, just that it was the highest.

Nagy Vilmos9-Jul-12 8:48

9-Jul-12 8:48

Top for arrests? Absenteeism? We may never know... Big Grin | :-D

Richard MacCutchan9-Jul-12 9:03

9-Jul-12 9:03

We should be told; time for a judicial inquiry.

Nagy Vilmos9-Jul-12 9:12

9-Jul-12 9:12

Nah. Let's just have a witch hunt.

jschell9-Jul-12 12:13

jschell

9-Jul-12 12:13

CsTreval wrote:
It used to be that the really hard working and intelligent people were bumped
up to manager.

Sigh...what fun to be young again.

I suggest you research the "Peter Principle". You will find that the copyright on the primary book that introduced that was 1969.

CsTreval wrote:
I knew more about programming and computers than they did.

One thing I knew even in college was that is was really unlikely that I know everything. And with that understanding I found that almost (if not everyone) I have ever met has given me the opportunity to learn something.

CsTreval wrote:
Meanwhile, a top paid programmer I know who works for one of the best software
development companies can only type with two fingers and can't even do a copy
paste in Excel!

So there are several possibilities.
1. You do not have any idea what that person actually does.
2. That specific company and/or department is a failure.
3. All companies are like that and thus you will never get a job (because they don't hire people that can program.)

CsTreval wrote:
It used to be that the really hard working and intelligent people ...I knew more about programming and computers than they did

I can't be sure but I would suppose that arrogance is one trait that will in fact lead to...
- not getting hired in the first place
- getting fired once hired.

pasztorpisti14-Jul-12 0:03

pasztorpisti

14-Jul-12 0:03

+5 I agree... to some extent. Being a good coder isn't always enough to get a good salary. The best combination is being a good (at least average) coder and having a level a social awareness, and to have the balls on a job interview. My experience is that having balls and being social is more important to have a good salary than being a good coder. Its enough to be an average coder.
EDIT: You are angry (and sometimes arrogant), but you are on a better way than a hardcore programmer if want good pay - this is also dependent on the place you work at, but in my experience being a very good coder is secondary most of the time. Debating with anger is also a bad habit. If you got angry you lost the match.

modified 14-Jul-12 6:39am.