for loop - Java returning int from ArrayList<Integer> method -

i've created simple method receives arraylist<integer>, , returns average number double.

the code:

public static arraylist<integer> tempgsnitt(arraylist<integer> temperatur){         double sum = 0;         for(int = 1; < temperatur.size(); i++)             sum += temperatur.get(i);          sum = sum/temperatur.size();          return sum;     } 

but i'm getting error method expects arraylist return. question is; how can return double arraylist method?

your return type arraylist, change double.

public static double tempgsnitt(arraylist<integer> temperatur){     double sum = 0;     for(int = 1; < temperatur.size(); i++)         sum += temperatur.get(i);      sum = sum/temperatur.size();      return sum; }