public class ArrayList2d<Type>
{
     ArrayList<ArrayList<Type>> array;

     public ArrayList2d()
     {
          array = new ArrayList<ArrayList<type>>();
     }

     public void ensureCapacity(int num)
     {
          array.ensureCapacity(num);
          while (rows >= array.size())
          {
               array.add(new ArrayList<Type>());
          }
     }

     public void ensureCapcity(int row, int num)
     {
          ensureCapacity(row);
          array.get(row).ensureCapacity(num);
     }

     public void Add(Type data, int row)
     {
          ensureCapacity(row);
          array.get(row).add(data);
     }

     public Type get(int row, int col)
     {
          return array.get(row).get(col);
     }

     public void remove(int row, int col)
     {
          array.get(row).remove(col);
     }

     public boolean contains(Type data)
     {
          for (int i = 0; i < array.size(); i++)
          {
               if (array.get(i).contains(data))
               {
                     return true;
               }
          }
          return false;
     }

     public int getNumRows()
     {
          return array.size();
     }

     public int getNumCols(int row)
     {
          return array.get(row).size();
     }
}