https://drive.google.com/drive/folders/1lTvaUEkJrOk7kfigQzOzhhM0BSha6DiC

function : fxn is a piece of code which performs a specific task

Structure : is a group of related data members now fxn is a grp of related instruction which perform a specific task ,

fxn is called as mpdule .

* Everything inside a single program is monolithic programming

* breaking into fxn is k/as modular or procedural peogramming ; we can break in smaller smaller program ; .

* This inrease productivity and reusability we can make library

-> pass by val : in this actual paramter (in main fxn ) will not be effected if any changes is done in formal parameter .(use in max,min,avg, and if we want to return something )

-> Call by address swap(&a,&b); and use (pointer *) in formal parameter it will effect the actual parameter if any changes made in formal parameter (use in swap , and if u want to modify actual parameter )

-> call by reference -> everything will be as call by value only the change is keep (&) in the formal parameter.(Supported in cpp only )

for each loop : - > for (int a:A)

-> structure can be passed by value but array can not be pass by value , array can be passed by address or reference

-> structure can be passed by value even if array is there inside structure.

-> in structure everything is public and in class everything is private.

-> mutetors , succsessor program , facilitators program -> uses member fxn of class and do some work on that .

this->a ---> it denotes the pointer to the current object.