The Fraction Class

The Fraction Class is the definition for a Fraction object. Classes contain Attributes (the data) and

Behaviors (the methods).

The Fraction Attributes

A fraction is an object that contains a numerator and denominator. Your Fraction class definition must

therefore contain two private attributes to represent the numerator and denominator. These attributes

must be integers.

The Fraction Behaviors

Your

Fraction class must contain public definitions for the following methods.

The methods are the

public interface to a Fraction object so you are NOT allowed to change the return type, method name, or

what is sent to the method

(notice that nothing is sent

to any of the methods).

public String toString( )

This method returns a String that looks like the fraction (ex. 34/250). This method does NOT display

anything on the screen.

public double getDecimal( )

This method returns the decimal equivalen

t of the Fraction by dividing the numerator by denominator.

public void reduce( )

This method potentially changes the numerator and denominator of the object by reducing the object to

lowest terms. This is the only method that can change the numerator

or denominator. reduce( ) is the

only mutator in the Fraction class definition.

public String toMixed( )

This method returns a String which includes the whole number and a reduced fractional component.

NOTE: this method DOES NOT MODIFY the numerator

or denominator of the fraction

it simply returns

a String. For example, if the object is the Fraction 35/10, the toMixed( ) method will return the String:

3 1/2" . Remember, the numerator will remain 35, and the denominator will remain 10, afte

r this

method is called.

If there is no whole number part, do not display 0.

You must also account for negative values in the numerator and denominator position when the

toMixed() method is called.

The Constructor Methods:

Along with the above methods, you must also be able to

instantiate

, or create, a new Fraction object.

This is done by using the new operator and calling the constructor method. Define the following

overloaded constructor:

Fraction(int n, int d)

This co

nstructor initializes the numerator and denominator of the object to the values (n and d) that are

sent to the constructor.

Fraction( )

This constructor initializes the numerator and denominator to 1.

The Test Program (main method)

Test your Fraction

class. You must also create a small test program (main method) in a separate java

class file to test your fraction class. Your program should do the following: creat

e 5 different Fraction

objects.

Hard code the values of the numerator and denominator

so that the user does not have to

enter these values. Part of your evaluation on this assignment is based on the quality of the Fractions

that you instantiate to test your code.

Next, allow the user to choose which method to perform. You

can use the Netbeans output window or

dialog boxes for

the I/O in this program. Display a set of

numbered

choices to the user

which includes a

choice to allow the user to test every Fraction behavior:

1.

Test the toString() method

2.

Test the reduce() method

3.

Test the toMixed() method

4.

Test the getDecimal( ) method

5.

Quit

When the user makes the choice, invoke that method on all 5 fraction

objects, displaying the returned

value of the fraction objects on the screen. Do not display anything if the method is void (in the case of

reduce( ) ). Redisplay the

numbered choices

so the user may choose other options before quitting the

program.

Hint: For ease

of coding

and for full credit, in the main method

I strongly recommend that you create an

array of 5 Fraction objects.

If you dont

use an array

, you will not receive full credit for this assignment.

You can create and instantia

te your Fractio

n array with the following code. Choose your fractions

carefully in order to fully test your code. Does your code work for negative numerators and

denominators?

Fraction [ ] myFracs = { new Fraction( 12, 18 ) , new Fraction( ), new Fraction( 125, 30 ),

...

};

I've seen this answered in various spots within chegg but can't seem to make any of them work properly.