Rational numbers

A rational number is a number that can be represented as the ratio of two integers. For example, 2/3 is a rational number, and you can think of 7 as a rational number with an implicit 1 in the denominator. For this assignment, you are going to write a class definition for rational numbers.

1.

Go to http://rocky.colby.edu/cs151/code/hw9/cs151.java. It contains a class definition for complex numbers and a main method that tests the various functions. Print a copy and make sure you understand how it works. You should use this example as a template for what follows.

2.

Create a new project called Rational.prj.

3.

In addition to the class named cs151, add a second class named Rational. Remember that only cs151 should be a public class.

4.

Add two instance variables (integers) to the Rational class. These will contain the numerator and denominator of each Rational object.

5.

Write a constructor that takes no arguments and that sets the two instance variables to zero.

6.

Write a method called printRational that takes a Rational object as an argument and prints it in some reasonable format.

7.

Write a main method that creates a new object with type Rational, sets its instance variables to some values, and prints the object.

8.

At this stage, you have a minimal testable (debuggable) program. Debug it. Whenever I start writing a new class, I start with these three steps: instance variables, a simple constructor, and a print method. Then I add methods and test them one at a time.