It's an also a method to addin two variables.

Question

#include<iostream>
using namespace std;
int main()
{
int a=30,b=20;
cout<<"sum="<<a+b;
return 0;
}

Answer 1

int main() is the method, Start of the program

int a = 30,b=20; is initialization of int a and b

a+b is multiplying both values

i dont think you have created a new method but its within the main method body.

im not sure what language this is either but hope this helps.