Can you execute a program without the main function? code example

Example 1: run program without main method using macro

#include<stdio.h>  
#define start main  
void start() 
{  
   printf("Hello, World!!!");  
}

Example 2: Can we execute a program without main() method

Yes, one of the ways to execute the program without the main method is 
 using static block
 
 What if the static modifier is removed from the signature of the main method??
 
 Program compiles. However, at runtime, It throws an error "NoSuchMethodError