Design and implement a class called MonetaryCoin that is derived from the Coin class presented in Chapter 5. Store an integer in the MonetaryCoin that represents its value and add a method that returns its value. Create a main driver class to instantiate and compute the sum of several MonetaryCoin objects. Demonstrate that a monetary coin inherits its parents ability to be flipped. Java Software Solutions 7th edition

//********************************************************************

// Coin.java Author: Lewis/Loftus

//

// Represents a coin with two sides that can be flipped.

//********************************************************************

public class Coin

{

private final int HEADS = 0;

private final int TAILS = 1;

private int face;

//-----------------------------------------------------------------

// Sets up the coin by flipping it initially.

//-----------------------------------------------------------------

public Coin ()

{

flip();

}

//-----------------------------------------------------------------

// Flips the coin by randomly choosing a face value.

//-----------------------------------------------------------------

public void flip ()

{

face = (int) (Math.random() * 2);

}

//-----------------------------------------------------------------

// Returns true if the current face of the coin is heads.

//-----------------------------------------------------------------

public boolean isHeads ()

{

return (face == HEADS);

}

//-----------------------------------------------------------------

// Returns the current face of the coin as a string.

//-----------------------------------------------------------------

public String toString()

{

String faceName;

if (face == HEADS) faceName = "Heads"; else faceName = "Tails"; return faceName; } }