java - C++ equivalent of Arraylist.get(index) -

i have been wanting learn c++ out of interest , start of wanted see if translate of java code had written solve project euler problems(i had followed course while wanted see remembered). came across java code:

while (x != 0) {         if(x%10 != 0) {             digits.add(x%10);         }         x /= 10;     } 

which translated to:

std::vector<int> v; while(x != 0){     v.push_back(x%10);     x /= 10; } 

with of internet. question is, how value out of ¨list¨. in java can digits.get(index), how 1 in c++?

you use operator[](std::size_t), plain array:

int n = v[index]; 

note performs no bounds checking. if want bounds-checked access, use at() member function:

int n = v.at(index); 

the latter throws std::out_of_range exception out of bounds access.