Question

Define a class Fraction3YourName as follows,

/**
* Program Name: Fraction3YourName.java
* Discussion: Fraction3Yourname class
* written By:
* Date: 2019/09/19
*/
public class Fraction3YourName {
private int sign;
private int num;
private int denom;
public Fraction3YourName() {
//sign = ;
//denom = ;
}
public Fraction3YourName(int n) {
//sign = ;
//num = n;
//denom = ;
}
public Fraction3YourName(int s, int n, int d) {
//sign = s;
//num = n;
//denom = d;
}
}
You are asked to
 Complete the definitions for the given constructors; and
 Provide additional method members to allow the performance of four simple
arithmetic operations: (1) Addition, (2) Subtraction, (3) Multiplication, and (4)
Division; and
 Provide one method member print() to display the Fraction3YourName object.

by java programming

Answer 1

SOURCE CODE:

*Please follow the comments to better understand the code.

**Please look at the Screenshot below and use this code to copy-paste.

***The code in the below screenshot is neatly indented for better understanding.



public class Fraction3YourName {
    private int sign;
    private int num;
    private int denom;

    public Fraction3YourName() {
        sign =1;
        denom =1;
    }

    public Fraction3YourName(int n) {
        sign =1;
        num = n;
        denom =1;
    }

    public Fraction3YourName(int s, int n, int d) {
        sign = s;
        num = n;
        denom = d;
    }
    // add the fraction
    public Fraction3YourName add(Fraction3YourName frac)
    {
        int denom = this.denom * frac.denom;
        int num = (this.num * frac.denom) + (frac.num*this.denom);
        int s=1;
        if(num<0)
            s=-1;
        return new Fraction3YourName(s,num,denom);
    }
    // subtract the fraction
    public Fraction3YourName subtract(Fraction3YourName frac)
    {
        int denom = this.denom * frac.denom;
        int num = (this.num * frac.denom) - (frac.num*this.denom);
        int s=1;
        if(num<0)
            s=-1;
        return new Fraction3YourName(s,num,denom);
    }
    // Multiply the fraction
    public Fraction3YourName multiply(Fraction3YourName frac)
    {
        int denom = this.denom * frac.denom;
        int num = (this.num * frac.num);
        int s=1;
        if(num<0)
            s=-1;
        return new Fraction3YourName(s,num,denom);
    }
    // Divide the fraction
    public Fraction3YourName divide(Fraction3YourName frac)
    {
        int denom = this.denom * frac.num;
        int num = (this.num * frac.denom);
        int s=1;
        if(num<0)
            s=-1;
        return new Fraction3YourName(s,num,denom);
    }
    // print the fraction number
    public void print()
    {
        System.out.println(num+"/"+denom);
    }

    public static void main(String[] args) {
        // create a fraction class using constructor 3
        Fraction3YourName f1=new Fraction3YourName(1,2,3);
        // print the fraction
        System.out.print("F1 is: ");
        f1.print();

        // create a fraction class using constructor 2
        Fraction3YourName f2=new Fraction3YourName(3);
        // print the fraction
        System.out.print("F2 is: ");
        f2.print();

        // add the fractions and print the result
        Fraction3YourName addedFraction= f1.add(f2);
        System.out.print("F1+F2 is: ");
        addedFraction.print();

        // subtract the fractions and print the result
        Fraction3YourName subtractedFraction= f1.subtract(f2);
        System.out.print("F1-F2 is: ");
        subtractedFraction.print();

        // multiply the fractions and print the result
        Fraction3YourName multipliedFraction= f1.multiply(f2);
        System.out.print("F1*F2 is: ");
        multipliedFraction.print();

        // divide the fractions and print the result
        Fraction3YourName dividedFraction= f1.divide(f2);
        System.out.print("F1/F2 is: ");
        dividedFraction.print();
    }
}

==================

SCREENSHOTS:

OUTPUT:

======================

F1 is: 2/3
F2 is: 3/1
F1+F2 is: 11/3
F1-F2 is: -7/3
F1*F2 is: 6/3
F1/F2 is: 2/9

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