Program kuadratik

import java.util.Scanner;

public class QuadraticProgram {

   public static void main(String[] args) {

      // declare variables
      int a, b, c;
      int desc ;
      int root1, root2 ;
      int realPart, imaginaryPart;

      // create Scanner class object 
      // to read inputs
      Scanner scan = new Scanner(System.in);
      // read inputs
      System.out.print("Enter coefficients "
		+ "(a, b, and c values): ");
      a = scan.nextInt();
      b = scan.nextInt();
      c = scan.nextInt();

      // display Quadratic equation
      System.out.print("The quadratic equation: ");
      System.out.format("%d*x^2 + %d*x + %d = 0\n",
                  		a, b, c);

      // calculate discriminant
      desc = (b*b) - (4*a*c);

      // find roots
      if(desc > 1) {
         // both roots are real and different 
         root1=(-b+(int)Math.sqrt(desc))/2*a;
         root2=(-b-(int)Math.sqrt(desc))/2*a;
         // display roots
         System.out.println("Roots are = "+ 
	    		root1 + ", "+ root2);
      } 

      else if(desc == 0) {
         // both roots are real and equal 
         root1=(-b+(int)Math.sqrt(desc))/2*a;
         root2 = root1;
         // display roots
         System.out.println("Roots are = "+ 
	    		root1+ ", "+ root2);
      } 

      else {
         // roots are complex and different
         realPart = -b/(2*a);
         imaginaryPart=(int)Math.sqrt(desc)/(2*a);
 	 System.out.format("root1 = %d + i(%d)\n",
			realPart, imaginaryPart);
	 System.out.format("root2 = %d - i(%d)\n",
			realPart, imaginaryPart);
      }

      // close Scanner class object
      scan.close();
   }
}
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