Android SMS receive programmatically

Sending and receiving SMS messages are fundamental features on mobile devices. Android provides API for both send and receive sms to your android application.
Here is an example for catch when your android device receive SMS to it. You need to register a broadcast receiver initially for this.

For further references use following links.
SmsManager
SmsIntents

Android send SMS programmatically

An example for sending SMS programmatically in android. This will cost operator charges of sending sms. And also need to request sms sending permission from user to do this.

It also contents receiver for capture message sent and delivery status.
Following is the source for send SMS and get the status.