It was an android based app. We collect all the geo location of Dhaka city of Bangladesh. When a person set alarm for a particular place inside dhaka when he/she reach that place , alarm will start. In this particular project we don't know about Database we use file & use Trie data structure (http://en.wikipedia.org/wiki/Trie) for searching location.
Musfiqur Rahman Sanim
Pritam Das
Faiaz ahsan