Chapter 3 test questions

3. The class ConvertToCents is self explanatory. For example, if we create an object and put in $45 and then call int convert() it gives us 45, 00. Basically it converts to value to cents.

4. public class Transaction

{

private double totalPrice;

private double amountGiven;

private ConvertToCents converter;

private NumberOfDollars numDollars;

private NumberOfQuarters numQuarters;

private NumberOfDimes numDimes;

private NumberOfNickels numNickels;

Transaction (double totalPrice, double amountGiven)

{

this.totalPrice=totalPrice;

this.amountGiven=amountGiven;

converter =new ConvertToCents(amountGiven-totalPrice);

}//constructor

public void getChange()

{

int changeInCents = converter.convert();

numDollars=new NumberOfDollars(changeInCents);

System.out.println("" +numDollars.getDollars() + " dollar(s)" );

changeInCents = numDollars.getChange();

numQuarters = new NumberOfQuarters(changeInCents);

changeInCents=numQuarters.getChange();

System.out.println("" +numQuarters.getQuarters() + " quarter(s)" );

numDimes = new NumberOfDimes(changeInCents);

changeInCents=numDimes.getChange();

System.out.println ("" +numDimes.getDimes() + "Dimes (s)");

numNickels = new NumberOfNickels (changeInCents);

changeInCents=numNickels.getChange();

System.out.println ("" +numNickels.getNickels() + "Nickels (s)");

System.out.println ("" +changeInCents + "cent(s)");

}//getChange

}//class Transaction

5. Done

6.