Question

Even I used break() and exit() statements many times, I am bit confused between them. I need to know exact meaning of both, when we should use them. Please explain with small example.
Thank you.

Answer 1

break is a keyword that exits the current construct like loops. exit is a non-returning function that returns the control to the operating system. For example:

// some code (1)
while(true)
{
   ...
   if(something)
     break;
}
// some code (2)

In the above code, break exits the current loop which is the while loop. i.e. some code (2) shall be executed after breaking the loop.

For exit, it just gets out of the program totally:

// some code (1)
while(true)
{
   ...
   if(something)
     exit(0);
}
// some code (2)

You would get out of the program. i.e. some code (2) is not reached in the case of exit().