import java.util.ArrayList;
public class Tester {
public static void main(String[] args) {
ArrayList<Integer> numbers = new ArrayList<Integer>();
int result = 0;
for (int i = 1; i <= 5; i++)
numbers.add(i * 2);
numbers.remove(2);
numbers.set(2, 100);
result = numbers.get(3);
}
}