Learn C Language from the Best Tutors
Affordable fees 1-1 or Group class Flexible Timings Verified Tutors Search in
What is void main () into main and what it does?
Asked by Noreen Last Modified
Answer 
Void main () is the entry point for execution in C program. The void is a keyword that represents function will not return anything but a void value.
Main is the name of the function and () represents parameter list that can be passed to function in this case nothing is passed.
Syntax of main function is :
dataType main()
{
// your code here
}
in the above function, dataType is the type of data (int, float or string) return by the main function.
read less
Rajeev Kumar
I am senior Full Stack developer and corporate trainer with 10 + years of experience in IT Industry.
Suchitra Gandu
Computer Science Engineering - Assistant professor
As we know, C Language is a Procedural language, where the emphasis is on functions or procedures. The main() is a function from where any C Program starts execution and void is a keyword which is used in the place of function's return type which means the function will not return any value at the point of call.
read less
Hello Noreen,
In simple terms, the void main() is an entry point of c, c++ or Java program.
In C, C++ or Java, the program starts execution from the main function.
Now let's talk about the main part of your questions what is void in void main(). C has statically typed programming language before sending it to the compiler we always need to specify the return type of function. If the function is returning any value which is going to be used in an expression, then you should specify a return type, e.g. int, float, char.
If the function is not returning any value at that time, you must specify void so that compiler won't look for the return value in the function.
If you're using modern compiler like GCC, you need to specify int main so that where you can return 1 or 0 or -1 to the loader.
Also, don't get confused between Null and void. There is a different meaning of null in programming. Null is considered as a value or constant when you want to create a variable you can assign null value, but you can't assign void to any variable.
I hope this will clear your doubt. If not, try to practice on the same and learn from errors.
Happy Coding :)
read lessView 48 more Answers
Related Questions
Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com
Ask a QuestionRelated Lessons
Recommended Articles
Brilliant Academy, a reputed B. Tech Tuition...
Brilliant Academy is one of the reputed institutes for B.Tech tuition classes. This institute is specialised in delivering quality tuition classes for B.E, Engineering - all streams and Engineering diploma courses. Incorporated in 2012, Brillant Academy is a brainchild of Mr Jagadeesh. The main motto of the academy is to...
Read full article >
Lasya Infotech: An educational Training...
Lasya Infotech is a Hyderabad based IT training institute founded in 2016 by O Venkat. Believing in his innovation, passion and persistence and with a diverse blend of experience, he started his brainchild to deliver exemplary professional courses to aspiring candidates by honing their skills. Ever since the institute envisions...
Read full article >
Learn Microsoft Excel
Microsoft Excel is an electronic spreadsheet tool which is commonly used for financial and statistical data processing. It has been developed by Microsoft and forms a major component of the widely used Microsoft Office. From individual users to the top IT companies, Excel is used worldwide. Excel is one of the most important...
Read full article >
Why Should you Become an IT Consultant
Information technology consultancy or Information technology consulting is a specialized field in which one can set their focus on providing advisory services to business firms on finding ways to use innovations in information technology to further their business and meet the objectives of the business. Not only does...
Read full article >
Looking for C Language Classes?
Learn from the Best Tutors on UrbanPro
Are you a Tutor or Training Institute?
Join UrbanPro Today to find students near youThe best tutors for C Language Classes are on UrbanPro
The best Tutors for C Language Classes are on UrbanPro
10
