INTRO TO JAVA:

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Define a subclass NervousCritter of Critter. A nervous critter moves nervously between positions 0 and 1. In the act method, carry out the appropriate move.

CODE:

/** A nervous critter moves back and forth between positions 0 and 1. */ public class NervousCritter . . . { . . . }

Critter.java 1 import java.util.ArrayList; A simulated critter. 6 public class Critter private int position; private ArrayList history; 18 12 Constructs a critter at position ? with blank history 14 15 16 17 18 public Critter() position historynew ArrayList); 28 21 Gets the history of this critter @return the history 23 24 25 26 27h 28 public ArrayList