Simple OO program question

Hi there,
I would like to start writing some programs for myself now that I know a good part of the syntax of Java to keep learning in an intereseting way.
But I have the problem that I still don't realy own the OO thinking to start a project.
For example; I would like to write - to begin simple - a program that can add notes through a textfield and show the notes in a list or something like that.
Also I would like to be able to save and load my notes list when I close and open the program respectively.
I had thought of the following classes to use:
- Main (for executing the program and calling the gui)
- NotesGui (the actual window and swing components)
- Note (a domain class representing a note with some attributes and methods)
Is this a good idea? Or has somebody a better suggestion to start writing this little program?
Help would be very appreciated ^^
Thanks,
Gert-Jan M.

I am in a similar boat. I am new to Java and OO programming in general. For the record, I am using Java: How to Program as my book. The reason why I mention this will be clear. In my opinion you need to do a few things to get this project started. I myself and trying to think of a project to do in order to increase my skills. My opinion:
In the book I am using, they have an ATM case study where they go through the complete process of creating an application. Their process follows a standard software development life cyle. What I can get from it so far is that the starting point is Requirements gathering. You need to write out in some detail what it is that you want your application to do. This shouldn't necessarily state the how or what technologies will be used. Once they have the requirements defined, they begin identifying potential classes from within the requirements document. I believe there are many ways to do this but in general they select all the nouns in the requirements document and start formulating their list where it makes sense. They also use UML and other tools to create class diagrams, use cases etc that help explain the interaction objects will have with one another. A lot of the upfront work is gathering requirements and desinging much of what you want to do prior to even coding. Since I'm new to this I'm sure other, more experienced developers could expand on this.
My point is that you will want to understand the software development lifecycle and process, and learn more about software design. My personal end goal is to start learning design patterns and software development methodologies once I have a firm understanding of the Java language. Recommended readings could include the Deitel book Java: How to Program, Head First Object Oriented Analysis and Design, Head First Software Development and Head First Design Patterns. The Head First series seems nice because, in a somewhat easy fashion, they help explain software development processes, testing, software design, requirements gathering techniques and more. I think the sooner a developer learns about good design the better. I hope this helps.
Edited by: lokus on Oct 3, 2008 12:04 PM

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Attachments:
tt1.c ‏1 KB

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====================
=Labview 7.0 & 8.0 & 8.5=
=====================
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labview6.JPG ‏214 KB

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====================
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=====================
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Thanks in advance.....sathya

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Thanks in Advance.
Regards
Nani

Hi Nani,
try changing your data definition for var from CHAR20 to STRING.
regards,
Peter

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Ravi

Hello Ravinder,
Can you please post the complete stack trace, it seems to be some fields are getting truncated i,e data sent from the program to the proxy object might be violating some length restrictions.
Please check your message interface field lengths and what is being passed to the proxy.
Regards,
Ravi.

How to use simple abap program O/P using bsp.

Hi All,
I want to know simple BSP program which will call normal abap program. It has to display simple output not in table format.
Thanks,

Check the tutorials mentioned in the Wiki. Read the documentation. It is all simple.
Cheers
Graham Robbo

Simple OO program question

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