2ра лекциш

package javaapplication30;

import java.lang.Math;

public class JavaApplication30 {

    /* public static void equation(double a, double b, double c){
        double D = Math.pow(b, 2) - (4 * a * c);
        if (D < 0) {
            System.out.println("No solutions: D < 0.");
        } else if (D == 0) {
            System.out.print("There is one solution (D = 0): x = ");
            double x = -b / (c * a);
            System.out.println(x);
        } else if (D > 0) {
            System.out.println("There are two solutions (D > 0): x1 = ");
            double x1 = (-b + Math.sqrt(D)) / 2 * a;
            System.out.print(x1 + ", x2 = ");
            double x2 = (-b - Math.sqrt(D)) / 2 * a;
            System.out.println(x2);
        }
    }*/
 /* public static void evenNumbers(int low, int high) {
        System.out.print("Even numbers in [" + low + ", " + high + "]: ");
        for (int i = low; i <= high; i++) {
            if (i % 2 == 0){
                System.out.print(i + " ");
            }
        }
        System.out.println("");
    }*/
 /*public static double average(int low, int high) {
        double sum = 0;
        int counter = 0;
        for (double i = low; i <= high; i++) {
            if ((i % 5 == 0) && (i % 3 != 0)){
                sum += i;
                counter += 1;
            }
        }
        double average = sum / counter;
        System.out.println("Average: " + average);
        return average;
    }*/

    public static int sumOfDividers(int number) {
        int sum = 0;


        for (int i = 0; i < number; i++) {
            if ((i > 0) && (number % i == 0)) {
                //System.out.print(i + " ");
                sum += i;
            }
        }
        System.out.println("Sum of dividers = " + sum);
        return sum;
    }