// Page 166-167

public class WordList
{
	private final int MAX = 50;
	private int length;
	private String[] data = new String[MAX];
	public WordList()
	{	length = 0;		}
	public int Length()
	{	return length;	}
	public boolean IsFull ()
	{	return (length == MAX);	}
	public boolean IsEmpty ()
	{	return (length == 0);	}
	public void Print ()
	{
		for (int k=0; k<length; k++)
			System.out.print(data[k] + " ");
		System.out.println();
	}
	public void Insert (String item)
	{
		data[length] = item;
		length ++;
	}
	// ... other methods
}