Object Oriented Lecture no 2

Lecture No 2.


Information hiding is achieved in OOP using

• all information related to an object is stored within the object.
• it is hidden from the outside world.
• it can only be manipulated by the object itself
• all of above.

advantages of information hiding

• it simplifies our OO model
  
• it is a barrier against change propagation
  
• option (i) & Option (ii)
• None of above

we have enclosed all the characteristics of an object in the object itself.

• information hinding
• OOP
• encapsulation
• OO Model

information hiding and encapsulation are very ................... concepts.

• common
  
• distributed
• related
• easy

advantages of encapsulation.....

• low complexity
• simplicity and clarity
• better undrestanding
• all of above

................. is a set of functions of an object that he wants to expose to other objects.

• Model
• OOP
• encapsulation
• interface

The number and kind of messages that can be sent to an object depend upon its....

• Model
• message
• interface
• none of above

An ........ may have more than one interface...

• message
  
• object
• stimulus
• model

................ and implementation are separated from from each other to achieve information hiding.

• model
  
• message
• encapsulation
• interface
  

Objects communicates with each other using ......

• message
• model
• data structure
• none of above