Java Training in Chennai

1
Core Java - Introduction

• OBJECT ORIENTATION

2
Attending Class An Example

• I have a problem to solve
• I am teaching this class
• After you finished with my class, you have
  another to attend
• You do not know where that class is located
• I must make sure you know how to get to your next
  class

3
The Functional Approach

• A functional solution to the problem
• Get list of people in class
• For each person on the list
• Determine next class they need to attend
• Determine location of the class
• Formulate directions from my class to the next
  class
• Tell the person the instructions
• Implementing this approach would require
• A procedure to get the list of people
• A procedure to get each persons schedule
• A program to give directions
• A controlling program to execute these functions
  for each person

4
An Alternative

• An alternative solution
• Post directions to classroom locations on the
  wall
• Tell people in class where directions are and to
  go to their next class
• Implementing this approach would require
• People that
• Know how to read directions
• With directions, can get to next class
• A control program to
• Post the instructions and tell people that class
  is over
• Implementing this approach would require
• With the functional approach
• The Control program is responsible for everything
• With this alternative, students are responsible
  for themselves

5
How Does It work?

• People are responsible for themselves
• They do their own work
• They know what type of person they are
• Control Program
• Communicates with all people as if they are the
  same
• Does not care how people get from one class to
  another
• Does not care if people need to take special
  steps

6
Object Orientation

• Objects are responsible for themselves
• Objects tell each other to do things at a
  conceptual level
• Objects
• State,
• Behaviour
• REAL TIME ENTITY

7
Thank You !