Chapter 8.2, Problem 3SC

Explanation of Solution

Reason for the class “CashRegister” is not cohesive:

• Cohesion define that all the class should represent a single concept.
• A public interface of a class is cohesive, when all the features of its are related to the concept that the class represents.
• The class “CashRegister” lacks the cohesion because, it represents two concepts.
• The class “CashRegister” is given below,

//define class CashRegister

public class CashRegister

{

//Registering cash

public void enterPayment(int dollars, int quarters,

int dimes, int nickels, int pennies)

. . .

//Values of coin

public static final double NICKEL_VALUE = 0.05;

public static final double DIME_VALUE = 0.1;

public static final double QUARTER_VALUE = 0...