What is void main () into main and what it does?

Asked by Last Modified  

51 Answers

Learn C Language

Follow 15
Answer

Please enter your answer

.NET Professional Trainer with 12 years of experience

Void means nothing or empty. void main() - means here main() return nothing.int main() - means here main() returns an integer value.
1 Comments
Dislike Bookmark

Have 10+ years experience in IT Education and Projects

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...
read more
Void main () is the entry point for execution in C program. The voidis 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
1 Comments
Dislike Bookmark

Learn only to Achieve Success

Void main is a function which does not return any value. Or in the simple form, it is null so we can return anything. If used int main will requires returns 0 or any value as maths rule LHS=RHS.
Comments
Dislike Bookmark

Main () is the function from where program execution starts. And the void is the empty return type.
Comments
Dislike Bookmark

Computer Science Engineering - Assistant professor

When nothing is to be returned from the main function, we write void main() because void is taken as NULL. When the value to be returned is in integer format, we write int main().
Comments
Dislike Bookmark

Void main is the entry gate of the program when you run the program then this is called first by the compiler.
Comments
Dislike Bookmark

Void is return type of function.
Comments
Dislike Bookmark

I am senior Full Stack developer and corporate trainer with 10 + years of experience in IT Industry.

The void is a data type which tells to compile; it is a return type of the main function. The main is a predefined function which is the entry point of every program.
Comments
Dislike Bookmark

Trainer

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...
read more
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
Comments
Dislike Bookmark

IT Professional and Trainer with 14 years of Teaching Experience

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...
read more
Hello Noreen, In simple terms, thevoid 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 less
1 Comments
Dislike Bookmark

View 49 more Answers

Related Questions

what is syntex error
A syntax error is an error which found in the source code of a program or sometimes it can be small grammatical mistakes in spelling or limited to a single character. Programming languages follow their...
Tanha
In Java programming, what are the differences between the functions of 'int' and 'int []' when working with an array?
INT type of function return type is int where as for int return type is int array.
Kalpana
0 0
5
Do array subscripts always start with zero?
It purely depends on the programming language. C, C#, Java all provide array indices starting from zero (0). COBOL, FORTRAN, ALGOL etc. languages provide array indices starting from 1.
Avishkar
Why is C programming language called C?
It was first known as New B as it was an improved version of the B programming language. As C comes next to B in the English alphabet, it was renamed C later before its release. C is the only programming...
Shiva
0 0
5
What is the use of header files in C language?
In C language, header files are used to organize and reuse code efficiently 6 Key uses of header files in C language are :1. Function declarations (Prototypes)2. Macro Definitions3. Type Definitions4....
Sachanth
0 0
7

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

Why do pointers have a datatype?
Before we start with pointers you must know what is a variable and a datatype. int a; This is the basic line in every program in 'C' . It means that we are asking the compiler to give us 2 bytes of space...

Blazing Minds Learning Centre

0 0
0
All About Programming And A Good Programmer.
Hi, This is my first lesson for you guys. Hope you enjoy reading it. In recent community questions, I found many people wanted to be good programmers, or wanted to have good hands on certain language,...

Prateek

0 0
0
Recursion in C Programming
The process of calling a function by itself is called recursion and the function which calls itself is called recursive function. Syntax of Recursive Function returntype recursive_func () { statements; ...
R

Ravindra Yadav

2 0
0
C PROGRAM FOR GENERATING SOUND
#include<stdio.h> #include<conio.h> #include<dos.h> void main() { sound(3000); // sound function have single parameter , this parameter we put integer value its generating...

V. Muthu Ganeshan

0 0
0
What Are IT Industries Performance Metrics?
1. Outstanding Expectation: Eligible to get Promotion easily and good salary hike. Always preferrable to go abroad. 2. Exceed Expectation: Can get Promotion as per schedule of company with good salary...

Amit K.

0 0
0

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 >

Make a Career in Mobile Application Programming

Almost all of us, inside the pocket, bag or on the table have a mobile phone, out of which 90% of us have a smartphone. The technology is advancing rapidly. When it comes to mobile phones, people today want much more than just making phone calls and playing games on the go. People now want instant access to all their business...

Read full article >

Top 5 Skills Every Software Developer Must have

Software Development has been one of the most popular career trends since years. The reason behind this is the fact that software are being used almost everywhere today.  In all of our lives, from the morning’s alarm clock to the coffee maker, car, mobile phone, computer, ATM and in almost everything we use in our daily...

Read full article >

Find C Language Classes near you
C Language Classes in Bangalore
C Language Classes in Hyderabad
C Language Classes in Delhi
C Language Classes in Pune
C Language Classes in Chennai
C Language Classes in Mumbai
C Language Classes in Kolkata
C Language Classes in Noida
C Language Classes in Gurgaon
C Language Classes in Ghaziabad

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 you