AList.java

public class AList {
  private String[] items;
  private int count;
  
  public AList() {
    items = new String[10];
    count = 0;
  }
  
  public void add(String item) {
    items[count++] = item;
  }
  
  public void add(int i, String item) {
    items[i] = item;
    count++;
  }
  
  public String get(int i) {
    if (count == 0 || i >= count) {
      throw new IndexOutOfBoundsException();
    }
    return items[i];
  }
  
  public void remove(int i) {
     count--;
  }
  
  public void set(int i, String item) {
    
  }
 
  
}