import java.util.ArrayList;
public class Hack1 {
private ArrayList<Integer> arrayList = new ArrayList<>();
public void addToArrayList(int value) {
arrayList.add(value);
}
public int getValueAtIndex(int index) {
if (index >= 0 && index < arrayList.size()) {
return arrayList.get(index);
} else {
return -1;
}
}
public static void main(String[] args) {
Hack1 hack = new Hack1();
Integer x = 7;
hack.addToArrayList(x);
hack.addToArrayList(4);
hack.addToArrayList(x);
hack.addToArrayList(x);
hack.addToArrayList(4);
hack.addToArrayList(x);
hack.addToArrayList(x);
hack.addToArrayList(x);
System.out.println(hack.getValueAtIndex(6));
}
}
Hack1.main(null)