Explain the Structure of a C++ program (with an example)

1.	Explain the Structure of a C++ program (with an example)
Answer» #include // main() int main() { cout<< “Hello World”; // prints Hello World return 0; } The various parts of the above program: Headers, which contain information that is either necessary or useful to the program. For this program, the header is needed. The next line // main() is where the program execution begins. It is a single-line comment available in C++. Single-line comments begin with // and stop at the end of the line. The line int main() is the main function where program execution begins. The pair of {} indicates the body of the main function. The next line cout<< “Hello World.”; causes the message “Hello World” to be displayed on the screen. The next line return 0; terminates main() function and causes it to return the value 0 to the calling process.

Answer»

#include

// main()

int main()

{

cout<< “Hello World”; // prints Hello World

return 0;

}

The various parts of the above program:

Headers, which contain information that is either necessary or useful to the program. For this program, the header is needed.
The next line // main() is where the program execution begins. It is a single-line comment available in C++. Single-line comments begin with // and stop at the end of the line.
The line int main() is the main function where program execution begins.
The pair of {} indicates the body of the main function.
The next line cout<< “Hello World.”; causes the message “Hello World” to be displayed on the screen.
The next line return 0; terminates main() function and causes it to return the value 0 to the calling process.

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