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Explanation / Answer

class QuatradicEquation
{
   public QuatradicEquation(int a,int b,int c)
   {
       System.out.println("Given quadratic equation:"+a+"x^2 + "+b+"x + "+c);
      
       double d =getDiscriminant(a,b,c);
       if(d > 0)
{
System.out.println("Roots are real and unequal");
double root1 =getRoot1(a,b,d);
double root2 =getRoot2(a,b,d);
System.out.println("First root is:"+root1);
System.out.println("Second root is:"+root2);
}
else if(d == 0)
{
System.out.println("Roots are real and equal");
double root1 =getRoot1(a,b,d);
System.out.println("Root:"+root1);
}
else
{
System.out.println("Roots are imaginary");
}
   }
   double getDiscriminant(int a,int b,int c)
   {
       double d = b * b - 4 * a * c;
       return d;
   }
   double getRoot1(int a,int b,double d)
   {
       double root1= ( - b + Math.sqrt(d))/(2*a);
       return root1;
   }
   double getRoot2(int a,int b,double d)
   {
       double root2= (-b - Math.sqrt(d))/(2*a);
       return root2;
   }
}
class TestQuatradicEqation
{
   public static void main(String args[])
   {
       QuatradicEquation a=new QuatradicEquation(2,3,1);
   }
}

Output:-

C:Users ajendraDocumentscheggjava>javac TestQuatradicEqation.java

C:Users ajendraDocumentscheggjava>java TestQuatradicEqation
Given quadratic equation:2x^2 + 3x + 1
Roots are real and unequal
First root is:-0.5
Second root is:-1.0

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