A C++ Program Print Hello With Nothing Written In Main() Method Its the magic of oops

[sourabhj 0]

Hi guys can u make a program to write hello on screen without writing anything in main() u might be thinking hows that possible it is neccesary for every c/c++ program to start with main and execute statement written in main but here no statements in main how is it possible?,dont worry it is possible ill show u how:

#include<stdio.h>#include<iostream.h>class hello	{		int a;		public:		 	hello(){cout<<"hello";};	}magic; void main()	{	}

Can u guess how it worked
since we are creating an global object of hello class it gets executed at the first and its constructor in which we have written hello that statement gets executed as a result hello gets printed on the screen and then the main comes in to existence
cool na ,its the magic of oops

:D
Edited June 5, 2007 by sourabhj (see edit history)

[osknockout 0]

Clever coding. Of course, it's not the most efficient thing to go about creating global declarations in order to execute code, but... nice. :lol:Two (technical) questions:I) why'd you include stdio.h? I'm not seeing any c functions. Just adding kilobytes to the program size.II) why is everyone assuming a using std statement here? It doesn't make sense to do it in a public forum where some people *cough*me*cough* use ANSI strict styles for coding. It can also confuse newbies to C++.~just a syntax argument.

[sourabhj 0]

Clever coding. Of course, it's not the most efficient thing to go about creating global declarations in order to execute code, but... nice.
Two (technical) questions:
I) why'd you include stdio.h? I'm not seeing any c functions. Just adding kilobytes to the program size.
II) why is everyone assuming a using std statement here? It doesn't make sense to do it in a public forum where some people *cough*me*cough* use ANSI strict styles for coding. It can also confuse newbies to C++.
~just a syntax argument.

Yes u are right there is no use of stdio.h,actually its a like template ,i have been using, since std functions are sometimes needed and its time consuming and pain to write include statement in turboc 3.0 so i made a format which i copy paste in program then start coding.