Monthly Archives: October 2012

Upgrade Ubuntu Version

SET NOTIFICATION FOR NEW VERSTION:  Goto software center  > edit  > software sources > ubuntu software (select “server for india”)  &&  updates ( notify me of a new ubuntu version : for any new version).   Goto Update manager > … Continue reading

Posted in Uncategorized | Leave a comment

Errors while Programming

This program contains error as mentioned below: //program to find mean of N numbers. #include<iostream> using namespace std; double x[]; int n;

Posted in C++ | Leave a comment

Pointers in c++

A pointer is a variable that that contains the address of another variable in memory.   Declaration of pointer: A pointer variable (ptr)  is declared with asteriks( * ) data_type  *pointer_variable; example:  int *ptr;

Posted in C++ | Tagged | Leave a comment

Who is user Nobody?

“Nobody” is the conventional name of a user account which owns no files, is in no privileged groups, and has no abilities except those which every other user has. Pretty much the user nobody has zero permission… If you stare at … Continue reading

Posted in Uncategorized | Tagged , , | Leave a comment

Macros in c++

A macro is a fragment of code which has been given a name. Whenever the name is used, it is replaced by the contents of the macro. There are two kinds of macros. They differ mostly in what they look like when … Continue reading

Posted in C++ | Leave a comment

Header Files in C++

Before preceding to header files, you must aware of these terminologies: Preprocessor directives : Preprocessor directives are lines included in the code of our programs that are not program statements but directives for the preprocessor. Processors are automatically invoked by … Continue reading

Posted in C++ | Leave a comment