Question

ASAP

(Use BigInteger for the Rational class) Redesign and implement the Rational class in Listing 13.13 using BigInteger for the numerator and denominator. Use the code at https://liveexample.pearsoncmg.com/test/Exercise13_15Test.txt to test your implementation. Here is a sample run: Sample Run Enter the first rational number: 3 454 Enter the second second number: 7 2389 3/454 + 7/2389 = 10345/1084606 3/454 - 7/2389 = 3989/1084606 3/454 * 7/2389 = 21/1084606 3/454 / 7/2389 = 7167/3178 7/2389 is 0.0029300962745918793 Class Name: Exercise13_15 If you get a logical or runtime error, please refer https://liveexample.pearsoncmg.com/faq.html.

Answer 1

code

solution

//output

//copyable code

// BigRational.java

import java.math.*;

public class BigRational extends Number implements Comparable

{

//create the biginteger

private BigInteger[] r1 = new BigInteger[2];

public BigRational()

{

//constructor

this(new BigInteger("0"), new BigInteger("1"));

}

public BigRational(BigInteger numertor, BigInteger denominator)

{

BigInteger data = data(numertor, denominator);

r1[0] = (denominator.compareTo(BigInteger.ZERO) > 0? BigInteger.ONE : new BigInteger("-1")).multiply(numertor.divide(data));

r1[1] = denominator.divide(data);

}

private static BigInteger data(BigInteger nn1_val, BigInteger dd1_val)

{

BigInteger n1val = nn1_val;

BigInteger n2val = dd1_val;

BigInteger data = BigInteger.ONE;

for (BigInteger kk1 = BigInteger.ONE; kk1.compareTo(n1val) <= 0 && kk1.compareTo(n2val) <= 0; kk1 = kk1.add(BigInteger.ONE))

{

if (n1val.remainder(kk1).compareTo(BigInteger.ZERO) == 0 && n2val.remainder(kk1).compareTo(BigInteger.ZERO) == 0)

data = kk1;

}

return data;

}

public BigInteger getNum()

{

return r1[0];

}

public BigInteger getdenominator()

{

return r1[1];

}

public BigRational addition(BigRational second_Rat)

{

BigInteger nn1_val = (r1[0].multiply(second_Rat.getdenominator())).add(r1[1].multiply(second_Rat.getNum()));

BigInteger dd1_val = r1[1].multiply(second_Rat.getdenominator());

return new BigRational(nn1_val, dd1_val);

}

public BigRational subtraction(BigRational second_Rat)

{

BigInteger nn1_val = (r1[0].multiply(second_Rat.getdenominator())).subtract(r1[1].multiply(second_Rat.getNum()));

BigInteger dd1_val = r1[1].multiply(second_Rat.getdenominator());

return new BigRational(nn1_val, dd1_val);

}

public BigRational multiplication(BigRational second_Rat)

{

BigInteger nn1_val = r1[0].multiply(second_Rat.getNum());

BigInteger dd1_val = r1[1].multiply(second_Rat.getdenominator());

return new BigRational(nn1_val, dd1_val);

}

public BigRational division(BigRational second_Rat)

{

BigInteger nn1_val = r1[0].multiply(second_Rat.getdenominator());

BigInteger dd1_val = r1[1].multiply(second_Rat.getNum());

return new BigRational(nn1_val, dd1_val);

}

//string function

@Override

//string function

public String toString()

{

if (r1[1].compareTo(BigInteger.ONE) == 0)

//return data

return r1[0] + "";

else

return r1[0] + "/" + r1[1];

}

//boolean function

@Override

//object value

public boolean equals(Object ot)

{

//subtract data

if (((this.subtraction((BigRational)(ot))).getNum()).compareTo(BigInteger.ZERO) == 0)

//true value

return true;

else

//false value

return false;

}

//float func

@Override

     public float floatValue() {

//return vlue

          return (float)doubleValue();

     }

//double value function

@Override

//function

public double doubleValue()

{

return this.getNum().doubleValue() / this.getdenominator().doubleValue();

}

//long func

@Override

//override func

public long longValue()

{

//return result

return (long)doubleValue();

}

@Override

public int intValue()

{

return (int)doubleValue();

}

//function

@Override

//compare value

public int compareTo(Object o1)

{

BigInteger z1 = BigInteger.ZERO;

BigInteger nn1_val = this.subtraction((BigRational)o1).getNum();

if (nn1_val.compareTo(z1) > 0)

//return value

return 1;

else if (nn1_val.compareTo(z1) < 0)

return -1;

else

//return

return 0;

}

}

//Main.java

import java.math.BigInteger;

import java.util.Scanner;

public class Main

{

public static void main(String[] args)

{

    Scanner input = new Scanner(System.in);

    System.out.print("Enter rational number1 with numerator and denominator seperated by a space: ");

    String n1 = input.next();

    String d1 = input.next();

    System.out.print("Enter rational number2 with numerator and denominator seperated by a space: ");

    String n2 = input.next();

    String d2 = input.next();

   BigRational r1 = new BigRational(new BigInteger(n1), new BigInteger(d1));

    BigRational r2 = new BigRational(new BigInteger(n2), new BigInteger(d2));

   System.out.println("Addition: "+r1 + " + " + r2 + " = " + r1.addition(r2));

System.out.println("Subtraction: "+r1 + " - " + r2 + " = " + r1.subtraction(r2));

System.out.println("Multiplication: "+r1 + " * " + r2 + " = " + r1.multiplication(r2));

System.out.println("Division: "+r1 + " / " + r2 + " = " + r1.division(r2));

System.out.println(r2 + " is " + r2.doubleValue());

}

}