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Category > Programming Posted 12 May 2017 My Price 8.00

program to compute roots of quadratic equation

This is my program to compute roots of quadratic equation. However I need the program to execute the program 5 times. example:

Output should be like this:

 

Enter number for y: a

Enter number for x: a

The roots of the given numbers are a and a

Enter number for y: b

Enter number for x: b

The roots of the given numbers are b and b

Enter number for y: c

Enter number for x: c

The roots of the given numbers are c and c

Enter number for y: d

Enter number for x: d

The roots of the given numbers are d and d

Enter number for y: e

Enter number for x: e

The roots of the given numbers are e and e

 

Program:

import java.util.Scanner;

public class QuadraticEQ {   //QuadtraticEQ is the name of the class which will implement the application that will calculate and display the roots of the equation

   public static void main(String[] args)

   {

int x, y, z;

     double rootA, rootB, c; 

     Scanner s = new Scanner(System.in);

     System.out.print("Enter number for x:");//asking user to input number for x

     x = s.nextInt();//storing the entered number in variable x

     System.out.print("Enter number for y:");

     y = s.nextInt();

     System.out.print("Enter number for z:");

     z = s.nextInt();

     c = Math.sqrt(y * y - 4 * x * z);  //calculating the discriminant

     rootA = (-y +  c) / (2*x) ;   //calculating the 1st root of the equation

     rootB = (-y -  c) / (2*x) ;  //calculating the 1st root of the equation

 

     System.out.println("The roots of the given numbers are "+rootA+" and "+rootB); //displaying the output for root A and root B

    }

}

Answers

(11)
Status NEW Posted 12 May 2017 06:05 AM My Price 8.00

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