I believe the necklace always represented her feeling like a prisoner or a possession. After she was able to tell the story, she felt free, and threw the last of her shackles into the ocean with her true love, Jack.
Answer Wiki. Difference number 1: Public class is a class .Public static void main (string args[]) is a method. 2.Class is an entity which describes the behavior of its objects. Method(or function) is a set of statements executed to give desired result. main() method is the entry point of any application.
Can't use attachInterrupt in a library. So the compiler (not the IDE) tells you exactly what's wrong: argument of type 'void (HCSR04Interrupt::)()' does not match 'void (*)() So, while attachInterrupt() takes a function pointer of type void (*)(), you're trying to pass it a non-static member function, which you can't. You can try making the member function static and casting: static void echoHigh(); // ... attachInterrupt(_echo_pin - 2, reinterpret_cast<void (*)()>(&echoHigh), RISING);