The primary function of Spring is to provide a 'convenient' method of performing Dependency Injection (sometimes called Inversion of Control, IoC). Martin Fowler has a great article:

Martin Fowler: Inversion of Control Containers and the Dependency Injection pattern

Rrohit rakesh upadhyay wrote:it is a framework for making robust java applications

Not true. The primary function of Spring is to provide a 'convenient' method of doing Dependency Injection (sometimes called Inversion of Control). Spring does not itself make a robust Java application, in fact I've seen quite a few enterprise applications made worse through the improper and misguided use of Spring where it is not providing any benefits. I call this CV driven development, where people choose to use some technology in a project for no good reason other than being able to put it on their CV (resume). I quoted the word 'convenient' because I am of the opinion that it's often simpler and more convenient to work without Spring, especially for a smaller application.

Rrohit rakesh upadhyay wrote:1) would you suggest me to use spring for this project of mine?

Probably not. Especially if you were intending to use the MVC part of Spring as it will abstract away the implementation and usage details of Servlets and it will hinder your learning experience. Also, if the assignment is about demonstrating your understanding of Servlets, then choosing to employ some other tool to do it for you might impact your grade for the assignment.

The only way to know for sure is to ask this question to your project tutor.

For a beginner starting out and wanting to know what it means to be a 'professional'* programmer, I would highly recommend "The Pragmatic Programmer" by Andrew Hunt and David Thomas. It covers a lot of these topics from the point of why you would want to do them, rather than talking about any particular tool. It's a must for any budding programmer.

(* Not necessarily professional as in paid, but professional as in not amateurish, unstructured, or hacky)

I take Junilu's point, I am probably being a bit too difficult with the language thing. As an exercise in boolean logic it is not particularly important (although it would be useful for automating your testing and verifying your eventual simplification does not change the function's behaviour).

I see in your previous post that you have drawn out the template of a truth table (0 = false, 1 = true)

F M U
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1


The next step is to evaluate the input conditions required for each return statement to be evaluated. So for the first return statement on line 9 you can follow the condition statements to determine that the inputs need to be !frumious && manxome && uffish. So enter this into your table:


F M U
0 0 0
0 0 1
0 1 0
0 1 1 JUBJUB_BIRD
1 0 0
1 0 1
1 1 0
1 1 1


Then move onto the next return statement on line 13 and populate your table. Repeat for all return statements, and you will then have a completed table showing the output for each combination of inputs.

See how you get on with that, then we can discuss what to do with that information.

But you're left to guess what language it is? Weird.

What job position was the interview for? Java? C#?

If it were true, that the interviewer gave you incomplete or incorrect code, then yes. But in this case I suspect it is more likely that you are misinterpreting the question when relaying it to the forum.

You cannot simplify it, if it does not work to begin with.

I'm still unsure what programming language we're dealing with here! So far we've seen a mix of Java, C#, and C. Perhaps I could suggest a solution in Elixr?

Also:

Ama Ansah wrote:This was giving to as a test

by whom? We require you to always QuoteYourSources here on the Ranch (it's a copyright thing)

I'm confused about what language you are writing this in.

You reference a file called "prog.cs" which suggests C#. Then you reference a file called "prog.c" which suggests C. But you have posted your question in the Beginning Java forum.

Some clarification about your language choice is required. What language are you trying to use?

So first things first, find out why it doesn't compile. What is the compiler telling you when you try and compile it?

I know that Gradle has a feature to convert a Maven built system into a Gradle built system, and it does work, although my trust level in that would decrease quickly the further away from a 'standard' configuration my Maven configuration was. As for converting from Ant... I have no idea.

If the project is completely yours to mess around with then you can have a go at converting to Gradle, if only for the practice and knowledge gained through experimentation. However, if it's a shared project owned by someone else then you might just have to 'go with the flow' and use Ant or Maven or whatever. If you do want to work on these systems, then you have no choice but to learn enough Ant or Maven to get by. For example, I have a project that I contribute to from time to time that is built with Ant. I have no intention of learning all the ins and outs of the Ant build tool, but I've learnt enough of the commands to build the project and perform the tasks that I require, which I'm sure is a tiny tiny part of its overall capabilities.

All those build tools essentially do the same job, just with different methods of configuration. Learning Gradle would be a good place to start as it is the newest of the three you mention (Ant, Maven, and Gradle). I would strongly recommend you do take the effort to learn about the problem you are solving with a build tool, as opposed to just learning the syntax for building a project without really understanding what's going on. That way you will also gain an understanding of what Maven and Ant do, so if you come across any of those tools out in the wild it'll just be a case of learning it's syntax language.

In my experience, Ant is not used that much any more. I've been programming professionally for nearly a decade now and even I seemed to have missed the Ant popularity wave. The systems I have worked on, and still do, predominantly use Maven as the build tool. However, for any personal Java projects and such, I would favour Gradle. That's mostly because it's easy to mix in Gradle support to enable me to use the Spock testing framework.

Hello, and welcome to the Ranch!

You should always UseCodeTags (<-- click) when posting code on the forum. I've added them for you this time, see how much better it looks?

Before you start trying to simplify the method, you should take some time to make it at least compile, because currently it does not. Once you've done that there's a whole bunch of suggestions in this other thread from 7 years ago (which I assume is where you got this code from in the first place) that you could consider.

Here's my analogy for System.gc();

Code: "Hey GC, I got some stuff over here that I'd like cleaned up please"
GC: "I hear ya. I'm kinda busy right now but I'll add it to the ToDo list and I might get to it later."

Doing a 'forced GC' from your profiler tool is hardly a sustainable strategy either, so I'd forget about both of those right away.

I assume that there is more to your code than that which you have presented, as what you have presented will not even compile.

From what you have shown, I can see that you are adding a String object to the StringBuffer for each line of the file being read in. If that file has many many lines, then you are creating many many String objects. Can you see from your profiler where your many String objects are residing? I suspect they belong to the StringBuffer.

You could have easily found this with a quick search on the internet.

But here goes anyway:

I have a file called 'somefile':

and a Shell script called 'do-grep.sh':
(Note: Those are backticks, not single quotes.)

Results in:

You say 'variables'. What language are we talking here?

I think you just made the Moose blush...

What don't you understand about it?
Where did you get this code from (--> QuoteYourSources)

It appears to behave differently on different browsers. We are aware and have it in hand.

Liutauras Vilda wrote:Jude, please do not re-direct OP to look for an information in different source, as OP came to the Ranch to get some help.

There's nothing wrong with pointing folks to some other resource outside of the Ranch, we link to stackoverflow, and many other places, quite a lot if we think the resource is useful. Now, if you don't think the linked resource is useful, or even misleading, then it's ok to say so and suggest something else or provide clarification.

The Ranch is just a collection of guys and gals who love all things about programming and computers. We love it so much we feel compelled to talk about it with strangers on a daily basis, which is how this forum survives and thrives.

I wouldn't be so quick to discount one of the best learning resources available, just because you can't read it on your favourite reading device.

Besides, you could use the Kindle's experimental browser to read it.

Another hypothetical scenario: Say you got advice here suggesting that going for a 1st isn't worth it, so you didn't bother studying as hard and got a second or third class degree. Would you be happy with that because some strangers on the internet said it was OK?

Welcome Murat and Alex! I hope you enjoy your time here on the Ranch!

Howdy folks,

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I don't really know what you want us to say to you. "Go for a 1st", "Don't go for a 1st", it's your choice. Nobody other than you can make this decision.

bairava surya, you've gotten lots and lots of good information in this thread. What do you make of it? Does it all make sense? Is there any part that you don't understand?

You also got a lot of good information in your other thread on a similar topic that you appear to have abandoned. Did you find that useful? There are some open questions there for you too, should you wish to return and continue the discussion.

I'm calling time on the curly brace placement flame war. We're heading way off topic here.

I have a question for the OP:

bairava surya wrote:In above even though exception is handled in catch block still it shows an error

What error do you see? You haven't told us what happens when you run this code.

I assume that you already done some research on the topic. What particular part of the information that you have found do you not understand?

You didn't look very far

http://docs.oracle.com/javase/specs/

I agree with Henry that it sounds very dodgy. With particular note on this statement:

And for that Uk company there is no form 16 and of course my is not taxable

You say "not taxable", but I suspect you have not paid tax because you have not declared your income. An illegal practice, colloquially termed "tax dodging". Unfortunately this raises a number of other questions: Why were you paid cash? Was it because you were employed illegally? Was the company evading tax? Were you (knowingly) evading tax? Did you have the right to work in the UK?

It sounds like you're going to have a hard time explaining this one.

What requirement? What content?

Tim

HTML code is valid JSP code so no conversion required.

When you say "need the change content", what exactly do you mean by that?

That's Welsh sheep for you. Let em keep their tails and they think they own the place.

The movie Black Sheep contradicts your theory. Sheep aren't naturally that energetic when out finding nice grass to eat or doing other sheepy activities, but given half a whiff of dodgy radiation gain an unprecedented vigour for brains.

You might be right about the PhD subject. We're clearly wasting our time with this software nonsense.

"Nut up, or shut up" is my favourite quote from Zombieland.

28 Days Later is the first time I encountered speedy zombies in a movie. Terrifying, but entertaining. Mind you, wasn't the zombie cat in Pet Cemetery a nimble creature?

Speak for yourself Campbell

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I live in the UK. Previously in England, now Northern Ireland.

In principle I'm not against certifications. However, I don't hold any certifications, nor have I ever been asked about it when applying for a job. In fact I don't think I've ever been asked about it at any time. Perhaps it's different in other parts of the World, but where I live most folks just aren't that bothered about it.