Objects

An identifiable entity which has its own properties and behaviors.

Everything we see around us are objects. 

eg:- BOOK

Book has Properties

1. width
2. height
3. no. of pages
4. title

behaviors

1. turn pages

Mobile-phone has

Properties

1. display-screen
2. resolution
3. keypad
4. price
5. ring-tone

behaviors

1. receive call
2. make call
3. ring
4. switch on/switch off

The properties makes it appear as a mobile-phone. (Determines its state)

The behaviors makes it behave like mobile-phone. (Makes state-change)

all ring switch on/switch off

The properties makes it appear as a mobile-phone. (Determines its state)

The behaviors makes it behave like mobile-phone. (Makes state-change)