Java Enter a sequence of real numbers and calculate the number of elements thatis greater than in the previous element of the sequence

[Sco0b]

Good afternoon, I have a task "Enter a sequence of real numbers and calculate the number of elements that
is greater than in the previous element of the sequence " I took an example of another option and tried to make my own version. But something didn't work out for me. Tell me what

this is task 2

import java.util.Arrays;
import java.util.Random;
import java.util.Scanner;

import static java.lang.System.out;

public class LR3 {
    public static void main(String[] args) {
        Random rand = new Random();
        double h = 0.3, a = 0.5, b = 11;
        int count_of_variables;
        double x1, x2;

        Scanner sc = new Scanner(System.in);
        out.print("Вибиріть завдання (1; 2; 3): ");
        switch (sc.nextInt()) {
            case 1:
                task1(a, b, h);

                break;

            case 2:
                out.println("Введіть кількість змінних (мін. 10) : ");
                count_of_variables = sc.nextInt();
                double[] variables = new double[count_of_variables];
                for (int i = 0; i < variables.length; i++) {
                    variables[i] = rand.nextInt(30);
                }
                task2(variables);

                break;

            case 3:
                int max_k = 7;
                out.println("Рекомендованно x = 0,6 or 2,8");

                out.println("Введіть x1: ");
                x1 = sc.nextDouble();
                task3(x1,max_k);

                out.println("Введіть x2: ");
                x2 = sc.nextDouble();
                task3(x2,max_k);

                break;
        }
    }

    static void task1(double a, double b, double h) {
        out.println(" x         y        z");
        out.println("------------------------");
        for (double i = a; i <= b; i += h) {
            out.printf("%.1f    %.4f    %.4f\n", i , Math.sin(i)/Math.pow(i,2) , Math.cos(i)/i);
        }
    }


    static void task2(double[] variables) {
        out.println("array is: " + Arrays.toString(variables));
        double prd = variables[0];
        for (int i = 1; i < variables.length; i++) {
            if (variables[i] > variables[i+1]) {
                prd = prd+1;
            }
        }
        out.printf("Кількість елементів, які більші попереднього елемента послідовності =%i" , prd);
    }



    static void task3(double x, int max_k) {
        int k = 1;
        double summ = 0;
        for (int i=1;i<=max_k;i++) {
            k*=i;
            summ +=  ((Math.pow(x,i)/(k+1)));
        }
        out.printf("Сумма ряду при x = "+ x + " дорівнює " + "%.4f\n",summ);
    }
}

 

[Deleted member 2829]

"Something did not work out for you" and someone else is expected to tell you what it is ???
If you want to be helped, explain your problem.