Access image/audio/video files from program

I am new to android development and find it quite exciting. I am planning to write my own app. i am using eclipse IDE with andriod SDK plugin to develop the apps.

i want to access the image/video/audio files which are stored in internal/SDcard memory inside my java program. how can i do that? sample code or any link which explains the process will help me.

thanks in advance sanakr

There are multiple ways, one way is to use intent like this,

read data from sdcard in android

Second way is to use File class and specify the path and once you know the type and want to handle your way , you can implement it.