Write a class called Fraction which can be used to store an

 Write a class called Fraction, which can be used to store an exact fraction. It must have:         - A field to store the numerator         - A field to store the denominator         - A toString method that returns a neatly formatted String representing the fraction         - An equals method that compares itself to another Fraction         - An add method that adds itself to another Fraction and returns a new Fraction         - Appropriate constructor and accessors as needed  Write a program that asks the user to enter the numerators and denominators of two fractions and create corresponding Fraction objects.  Check for valid input and a 0 denominator. Then output both Fractions (using your toString method implicitly), whether they are equal, and their sum.  Note: You do not need to reduce your answer for the equals and sum.   Name your main class Hw6pr2 and your file Hw6pr2.java. Submit all .java files 

Solution

import java.util.Scanner;
public class Hw6pr2{
   public int nu;
   public int de;
   // constructor
   public Hw6pr2(int nu,int de){
       this.nu = nu;
       this.de = de;
   }
   // equals method to check whether two fractions are equal or not
   public boolean equals(Hw6pr2 obj){
       if(this.nu == obj.nu && this.de == obj.de){
           return true;
       }
       else{
           return false;
       }
   }
   // add method to add two fractions.
   public Hw6pr2 add(Hw6pr2 obj){
       Hw6pr2 fract = new Hw6pr2(this.nu,this.de);
       fract.nu = fract.de*obj.nu;
       fract.de = fract.de*obj.de;
       fract.nu = fract.nu + (this.nu*obj.de);
       int i =2;
       // divide both the numerator and denominator until all fractions are devided.
       while(i<=fract.nu && i<=fract.de){
           if(fract.nu%i == 0 && fract.de%i==0){
               fract.nu = fract.nu/i;
               fract.de = fract.de/i;
           }
           else{
               i++;
           }
       }
       return fract;
   }
   public int getNumerator(){
       return this.nu;
   }
   public int getDenominator(){
       return this.de;
   }

   public String toString(){
       return nu+\"/\"+de;
   }
   // main method to test output
   public static void main(String args[]){

       Scanner sc = new Scanner(System.in);
       int d1,d2,n1,n2;
       System.out.print(\"Enter numerator1:\");
       n1 = sc.nextInt();
       System.out.print(\"Enter denominator1:\");
       d1 = sc.nextInt();
       System.out.print(\"Enter numerator2:\");
       n2 = sc.nextInt();
       System.out.print(\"Enter denominator2:\");
       d2 = sc.nextInt();
       Hw6pr2 f1 = new Hw6pr2(n1,d1);
       Hw6pr2 f2 = new Hw6pr2(n2,d2);
       Hw6pr2 f3 = f1.add(f2);
       System.out.println(\"f1 Equals f2: \"+f1.equals(f2));
       System.out.println(\"Adding Fraction1 and Fraction2: \"+f3.toString());

   }
}
/* sample output
Enter numerator1:1
Enter denominator1:1
Enter numerator2:2
Enter denominator2:2
f1 Equals f2: false
Adding Fraction1 and Fraction2: 2/1
*/