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Why does execution of a program in C/C++/Java start from only main?

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MBA Graduate

Main function is calling the other functions of he program and compiler gets this direction while Compiling the code. If it does not find main function then it will also not find the other functions in the code. So, main is required in C program.
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Online Tutor

There has to be a MASTER function, which controls all other functions. main is that master function in each programming language.
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Online Trainer / Home Tutor

Because the languages have defined that main() be their entry point. Suppose they left it ambiguous, then you d have to specify somewhere that method {x} is your starting point which is the same as having a main program which could call that method {x}.
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C++ Programming(C/JAVA)

To get this question you need to know the process to which a program go through during compilation, using preprocessor directives all the libraries in header files are opened up and now to implement all of them we need a programming are where a programmer can code, that area/scope is termed as main function.Main(... read more
To get this question you need to know the process to which a program go through during compilation, using preprocessor directives all the libraries in header files are opened up and now to implement all of them we need a programming are where a programmer can code, that area/scope is termed as main function.Main( ) is like a trunk to a tree(i.e. program),from where we can access all the library components including the stem of the tree(i.e. predefined/userdefined functions). Happy Programming Regards Sachin read less
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Cryptic Technology & Innovative Center, We Care Your Needs

Because the languages have defined that main() function as the entry point. Suppose they left out main function, then you have to specify somewhere that method manually as your starting point which is the same as having a main program which could call that method automatically.
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Tutor

the main method is an entry point for the compiler. In Java When class is loaded JVM is looks for main class.
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main is an entry point (like a main door) for your code written in C / C++ /Java/C# . So without main the code cannot be executed.
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IT-Trainer

because all these languages are defined in such a way that the main function will be the entry point for the program execution.
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Assistant Professor

Because the languages have defined that main() be their entry point. Suppose they left it ambiguous, then you d have to specify somewhere that method {x} is your starting point which is the same as having a main program which could call that method {x}.
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Because the languages have defined that main() be their entry point. Suppose they left it ambiguous, then you d have to specify somewhere that method {x} is your starting point which is the same as having a main program which could call that method {x}. Would you rather write code that just starts... read more
Because the languages have defined that main() be their entry point. Suppose they left it ambiguous, then you’d have to specify somewhere that method {x} is your starting point which is the same as having a main program which could call that method {x}. Would you rather write code that just starts up some random function? Or do you have a better alternative? If not, then there is no point to this question? read less
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