I am a newbie in Andriod can anyone help me to create an app named 'Time to celebrate'. The task is as follows

1. Gets a date input from the user. ( The date might be some birthday, or marriage, or some important event)

2. On click of a button with text "Display Celebration times", then it should display the following from the given date
a. 50th day (e.g. If the given date is 03-06-2013, then add 50 days and display the 50th day will be xx-xx-xxxx)
b. 100th, 200th, 1 year, 500th, 1000 till 2000 till 5000th date.

For the above task I need to use alaram manager so can anyone help me code this so that can learn .