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C Language > Learn C Language > What is void main () into main and what it does?
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What is void main () into main and what it does?

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.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.
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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...
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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
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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.
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Main () is the function from where program execution starts. And the void is the empty return type.
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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().
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Void main is the entry gate of the program when you run the program then this is called first by the compiler.
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Void is return type of function.
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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.
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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...
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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
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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...
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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
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