1. The Activity class does not do any exception checking. Modify it so that you handle any exceptions that could occur. Note that you should not change Fraction.java.
2. Think carefully about your design and use good object-oriented principles in your implementation.

3. If I was a user, I'd like to have the program tell me what I did wrong and allow me to fix my mistake rather than terminate. Try using a do-while loop so that the program doesn't terminate.

   example:

   do

   {

   program with try catches

   } while (error == true)

4. we need to use the try/catch to only the Activity Java file.

Submit a file (pdf) that contains: Briefly describe your implementation: Output of your code:

Submit your code java files: Activity.java

1.Activity.java code

import java.util.Scanner;

/** * Driver class * * @author Wade Huber * */ public class Activity {

public static void main(String[] args) {

Fraction sampleFraction = new Fraction(8,3); Scanner scan = new Scanner(System.in);

System.out.print ("Enter the numerator: "); sampleFraction.setNumerator(scan.nextInt()); System.out.print ("Enter the denominator: "); sampleFraction.setDenominator(scan.nextInt());

System.out.println ("The fraction " + sampleFraction.getNumerator() + "/" + sampleFraction.getDenominator() + " is equal to " + sampleFraction.toMixedNumber()); scan.close();

} }

2.Fraction. JAVA CODE

/** * Fraction class, including the ability to represent improper fractions * as mixed numbers. * * Activity - add exception handling. * * @author Wade Huber * */ public class Fraction { private int numerator; private int denominator;

/** * Class constructor - default to 1 */ Fraction() { numerator = 1; denominator= 1; }

/** * Class constructor specifying values for numerator & denominator * * @param numerator numerator of fraction * @param denominator denominator of fraction */ Fraction(int numerator, int denominator) { this.numerator = numerator; this.denominator= denominator; } /** * @return numerator the numerator of the fraction */ public int getNumerator() { return numerator; }

/** * @param numerator the numerator of the fraction */ public void setNumerator(int numerator) { this.numerator = numerator; }

/** * @return denominator the denominator of the fraction */ public int getDenominator() { return denominator; }

/** * @param denominator the denominator of the fraction */ public void setDenominator(int denominator) { this.denominator = denominator; }

/** * Generate a string representing the fraction in mixed number format. * * @return string representation of the fraction as a mixed number */ public String toMixedNumber () { String ret = ""; int remainder = numerator % denominator; ret += numerator / denominator; ret += " "; if (remainder != 0) { ret += Math.abs(numerator % denominator); ret += "/"; ret += Math.abs(denominator); } return ret; } /** * @return string representation of the fraction as a mixed number */ public String toString() { String ret = Integer.toString(numerator) + "/" + denominator; return ret; } }