import java.io.*;
class Quadratic
{
	public static void main(String args[])throws IOException
	{
		double x1,x2,disc,a,b,c;
		InputStreamReader obj=new InputStreamReader(System.in);
		BufferedReader br=new BufferedReader(obj);
		System.out.println("enter a,b,c values");
		a=Double.parseDouble(br.readLine());
		b=Double.parseDouble(br.readLine());
		c=Double.parseDouble(br.readLine());
		disc=(b*b)-(4*a*c);
		if(disc==0)
		{
			System.out.println("roots are real and equal ");
			x1=x2=-b/(2*a);
			System.out.println("roots are "+x1+","+x2);
		}
		else if(disc>0)
		{
			System.out.println("roots are real and unequal");
			x1=(-b+Math.sqrt(disc))/(2*a);
			x2=(-b+Math.sqrt(disc))/(2*a);
			System.out.println("roots are "+x1+","+x2);
		}
		else
		{
			System.out.println("roots are imaginary");
		}
	}
}

The post Java program to prints all real solutions to the quadratic equation ax2+bx+c = 0 first appeared on Student Projects.

import java.util.Scanner;
 class solutions
{
	public static void main(String[] args)
	{
		int a,b,c;
		double x,y;
		Scanner s=new Scanner(System.in);
		System.out.println(“Enter the values of a,b, and c”);
		a=s.nextInt();
		b=s.nextInt();
		c=s.nextInt();
		int k=(b*b)-4*a*c;
		if(k<0)
		{
			System.out.println(“No real roots”);
		}
		else
		{
			double l=Math.sqrt(k);
			x=(-b-l)/2*a;
			y=(-b+l)/2*a;
			System.out.println(“Roots of given equation:”+x+” “+y);
		}
	}
} 

Output:

Enter the values of a,b,c
1
5
6
Roots of given equation:-3.0 -2.0

Enter the values of a, b, c
1
2
2
No real solutions

Enter the values of a, b, c
1
3
2
Roots of given equation: -2.0 -1.0

The post Java program that prints all real solutions to the quadratic equation ax2+bx+c=0 first appeared on Student Projects.