” import java.util.Scanner;
public class Kvadrat {
public static void main(String []args){
Scanner input=new Scanner (System.in);
double a, b, c, d=0, x, x1, x2, re=0, im=0;
System.out.print ("Въведете а=");
a= input.nextDouble ();
System.out.print ("Въведете b= ");
b= input.nextDouble ();
System.out.print ("Въведете c=");
c= input.nextDouble ();
if (a==0 && b==0); //
махни ; System.out.println ("Изродено уравнение");
else if (a==0){
x = -c/b;
System.out.println ("Линейно уравнение x=" + x);
}
else if (c==0){
x1= -b/a;
x2=0;
System.out.println ("Два корена x1=" + x1 + " x2" + x2);
}
else {
re= -b/(2*a);
d= b*b - 4*a*c ;
im = Math.sqrt(Math.abs(d))/2*a;
if (d >= 0); //
замени ; с { x1 = re + im ;
x2 = re -im ;
System.out.println ("Два корена x1=" + x1 + " x2" + x2);
}
else {
System.out.println ("Комплексни корени");
System.out.println ( re + im + "i");
System.out.println ( re + (-im)+ "I");
}
}
}
} //end class „