Defining Classes II - Java - page 329

data entry, create a deep copy constructor for the Team class. Test your copy
constructor by creating a copy of an existing team object, changing the
competition information for the copy, and outputting the data for the original
and the copy. The original object should be unchanged if your deep copy
constructor is working properly.

5. Define a class named Money whose objects represent amounts of U.S. money.

The class should have two instance variables of type int for the dollars and cents
in the amount of money. Include a constructor with two parameters of type int
for the dollars and cents, one with one constructor of type int for an amount of
dollars with zero cents, and a no-argument constructor. Include the methods add
for addition and minus for subtraction of amounts of money. These methods
should be static methods and should each have two parameters of type Money and
return a value of type Money . Include a reasonable set of accessor and mutator
methods as well as the methods equals and toString . Write a test program for
your class.
Part Two: Add a second version of the methods for addition and subtraction.
These methods should have the same names as the static version but should use a
calling object and a single argument. For example, this version of the add method
(for addition) has a calling object and one argument. So m1.add(m2) returns the
result of adding the Money objects m1 and m2 . Note that your class should have all
these methods; for example, there should be two methods named add .
Alternate Part Two (If you want to do both Part Two and Alternate Part Two,
they must be two classes. You cannot include the methods from both Part Two
and Alternate Part Two in a single class. Do you know why?): Add a second
version of the methods for addition and subtraction. These methods should have
the same names as the static version but should use a calling object and a single
argument. The methods should be void methods. The result should be given as
the changed value of the calling object. For example, this version of the add
method (for addition) has a calling object and one argument. Therefore,

m1.add(m2);

changes the values of the instance variables of m1 so they represent the result of
adding m2 to the original version of m1 . Note that your class should have all these
methods; for example, there should be two methods named add .

6. Define a class for rational numbers. A rational number is a number that can be

represented as the quotient of two integers. For example, 1/2, 3/4, 64/2, and so
forth are all rational numbers. (By 1/2 and so forth, we mean the everyday mean-
ing of the fraction, not the integer division this expression would produce in a
Java program.) Represent rational numbers as two values of type int , one for the
numerator and one for the denominator. Your class should have two instance
variables of type int . Call the class Rational . Include a constructor with two