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Write the general structure of C++ program and explain any three components. |
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Answer» #include<iostream> //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 program. For this program, the header is needed. 1. 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. 2. The line int main() is the main function where program execution begins. 3. The pair of {} indicates the body of the main function. 4. The next line cout<< “Hello World.”; causes the message “Hello World” to be displayed on the screen. 5. The next line return 0; terminates main( )function and causes it to return the value 0 to the calling process. |
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