At a loss on what's wrong with my code. Please help an idiot

[bitwhiz99805]

<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>

<Below this line, add a link to the EXACT exercise that you are stuck at.>
https://www.codecademy.com/en/courses/learn-java/projects/grades-analyzer

<In what way does your code behave incorrectly? Include ALL error messages.>
GradeAnalyzer.java:16: error: cannot find symbol
int average = sum / grades.size();
^
symbol: variable sum
location: class GradeAnalyzer
1 error

```

import java.util.ArrayList;

class GradeAnalyzer{
public GradeAnalyzer(){
}
public int getAverage(ArrayList grades){
if (grades.size() < 1){
System.out.println(“Error! ArrayList is empty.”);
return 0;
}
else{
int sum = 0;
for (Integer grade : grades){
sum = sum + grade;
}
}
int average = sum / grades.size();
System.out.println(average);
return average;
}

public static void main(String args){
ArrayList myClassroom = new ArrayList();
myClassroom.add(98);
myClassroom.add(92);
myClassroom.add(88);
myClassroom.add(75);
myClassroom.add(61);
myClassroom.add(89);
myClassroom.add(95);
GradeAnalyzer myAnalyzer = new GradeAnalyzer();
myAnalyzer.getAverage(myClassroom);

}
}

<do not remove the three backticks above>

[rydan]

Sum is defined in this scope

else{
int sum = 0;
for (Integer grade : grades){
sum = sum + grade;
}
}

So it will only exist in the scope not outside of it. You are trying to use that variable outside of its scope here

int average = sum / grades.size();

that’s why the compiler is complaining that it does not exist

[bitwhiz99805]

Thank you for you help!