1.

Write the general structure of C++ program.

Answer»

#include <iostream>

//main() is where program execution begins.

int main()

{

cout <<"Hello world";// prints Hello world

return o;

}

The various parts of the above program:

1. headers, which contain information that is either necessary or useful to program. For this program, the header is needed. 

2. The next line // main() is where program execution begins, is a single-line comment available in C++. Single-line comments begin with // and stop at the end of the line.

3. The line int main() is the main function where program execution begins.

4. The pair of { } indicates the body of the main function.

5. The next line cout<< “This is my first C++ program.”; causes the message “This is my first C++ program” to be displayed on the screen.

6. The next line return 0; terminates main( )function and causes it to return the value 0 to the calling process.


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