import java.io.*; import java.lang.Integer.*; import java.util.ArrayList; public class integerList { // an arraylist of integer objects private ArrayList list = new ArrayList(); public void addInt(int n) {Integer nu = new Integer(n); // done for you already list.add(nu); // can only put objects in ArrayList // so we use a "wrapper" class } private int convertInt(Object o) // converts Integer object back to int {return ((Integer)o).intValue(); // have to be careful with parenthesis } public void printList() {} public int smallest() { } public int biggest() {} public void removeInt(int n) { } public double average() { } }