Help for a MOBILE application...

Question

Hello friends,
I am working on a mobile application that would be similar to dictionary. We need to store words in form of database. User would have to type a word to get all related stuff stored in database.
I am unable to figure out what technologies to use for developing this. Can anybody please help with some suggestions of how to approach this application. Also how to store database. I am a bit aware that we would have to use Java ME. but what part of it should we explore???
Thanks...

Answer 1

Hi
I'm not some J2ME specialist but i think i can help you :)
If I have undestood you correctly, you want to have a database in your MIDlet, that has some Objects inside.
What I would suggest you to do:
User would have to type a word to get all related stuff stored in database.You can create that in two ways:
1. By using TextBox. In this way the TextBox will be the only visible Object on the screen.
2. By Using TextField and Form. This way you can put many visible Objects into Form and make the Form visible.
I think this sums the VIEW content. Now few words about database
We need to store words in form of database.You have to use RMS (record management system)
Some links:
http://developers.sun.com/mobility/midp/articles/databaserms/ (in this tutorial you can find everything, from what is RMS, how to add, delete data, also i recomend you to read the CustomData types mapping into byte[])
For further notice. If you want to store some complex Objects like:
class SomethingX
SomethingY somethingY;
SomethingZ somethingZ;
String someString;
int someInt;
}I would recomend you to create a group of methods that return fields from thoose objects as String. Then in a method that converts the "main" Object to byte[], you just simply execute those methods. By doing so you can create a byte[] from complex Object and Object from a byte[] very easily.
Hope i could help :)