package username.functions;

/**
 * A function of one argument, an integer, that returns an integer.
 *
 * @author Samuel A. Rebelsky
 * @version 1.0 of April 2006
 */
public interface UnaryIntegerFunction
{
  /**
   * Apply this function to an integer.
   */
  public int apply(int x);
} // interface UnaryIntegerFunction