package com.coding.basic; public class ArrayList implements List{ private int size = 0; private Object[] elementDate = new Object[100]; @Override public void add(Object o) { this.elementDate[this.size]=o; this.size++; } @Override public void add(int index, Object o) { } @Override public Object get(int dex) { return null; } @Override public Object remove(int index) { return null; } @Override public int size() { return -1; } public Iterator iterator(){ return null; } }