I want to write simple PROGRAM in J2ME for my Sony Ericsson. I have no IDEA about that but well in java.

I don't know where i can start.

Can anyone tell me Reference or idea to learn J2ME? Especially for Sony Ericsson.i used to write application in J2ME long time ago, mostly written specific for nokia.

first you have to download the SDK for the series of phone. for Nokia, there is Series 40, Series 60, etc. and is available for download at Nokia website, or nokia will send you the SDK CD on request.

so for sony ericsson, you could go to their website and check if the sdk for sony is available for download. if not, there is a general j2me sdk availble at java website, i can't remember what was the name, something like STK. as long as you don't use the phone-specific API, the coding roughly should be the same across all java-phone, the difference mainly is in the screen size.

second, the J2ME API Reference, you should GET those, so you will know the available method and PROPERTIES of each object. it's the programming bible, without those, you are basically 'blind'.