A PPt for understanding the concept of oop for the people who are learning java.IT is also good for the students appearing for ICSE grade 10 exams.

1. OBJECT
ORIENTED
PROGRAMMING
LESSON NO 1
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2. Features of OOP
 1.Class
 2.Object
 3.Data Abstraction
 4.Encapsulation
 5.Inheritence
 6.Polymorphism
 7.Dynamic Binding
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3. CLASS
 A class is a blueprint or prototype, that defines the
variables and the methods common to all objects of
a certain kind.
 Static variable- which contain information that is
shared by all the instances of the class.
 Static method- which can be invoked directly from
the class.
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4. Objects
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An object is a unique entity, that
contains data and functions
together in an OOP language

5. DATA ABSTRACTION
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 It refers to the act of representing essential data
without including the background details of
explaination.

6. Polymorphism
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 Ability of an object to take than one form.

7. Inheritance
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 It is the capability of one class of things to inherit
capabilities or properties from another class

8. Dynamic Binding
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Process to link function call
with function signature at
runtime.

9. Encapsulation
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 The wrapping up of data and operations of functions
into a single unit is known as encapsulation

10. Advantages of OOP
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 1.It gives stress on data items Rather on functions.
 2.Offers code reusability.
 3.Highly beneficial to solve complex program.
 4.Makes it easy to maintain and modify existing
code.

11. Disadvantages of OOP
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 1.classes are overly generalised.
 2.Needs proper planning and proper design for OOP.
 3.design is tricky.
 4.Relationship between classes becomes artificial at
times.

12. DIFFERENCE BETWEEN POP AND OOP
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POP OOP
1.THE STRESS IS PUT ON FUNCTION
RATHER THAN THE DATA.
1.THE STRESS IS PUT ON DATA
RATHER THAN ON FUNCTION.
2.IT ALLOWS THE DATA TO FLOW
FREELY THROUGHOUT THE
PROGRAM.
2.THE DATA IS RESTRICTED TO A
SPECIFIC PROGRAM AREA.
3.IT DOES NOT HAVE ANY ACCESS
SPECIFIER
3.IT HAS 3 ACCESS SPECIFIERS VIZ.
public , private, protected.
4.IT FOLLOWS TOP-DOWN
PROGRAMMING APPROACH.
4.IT FOLLOWS BOTTOM –UP
PROGRAMMING APPROACH.