Java Why there is no output in my code?

[solrac8686]

package ejercicio2;

import java.util.ArrayList;
import java.util.Random;

public class Ejercicio2 {
    private static ArrayList<Double> array = new ArrayList<Double>();

    public static ArrayList<Double> rellenar(double min, double max, int tamaño) {
        Random random = new Random();
        for (int i = 0; i < tamaño; i++) {
            double valor = random.nextDouble(max - min + 1) + min;
            array.add(valor);
        }
            return array;
    }

    public static String escribir(ArrayList<Double> array) {
        String cadena = "[";
        for (int i = 0; i < array.size(); i++) {
            double valor = array.get(i);
            if (i == array.size() - 1) {
                cadena = cadena + valor + "]";
            } else {
                cadena = cadena + valor + ", ";
            }
        }

        return cadena;
    }

    public static double media(ArrayList<Double> array) {

        double media = 0;
        double suma = 0;
        for (int i = 0; i < array.size(); i++) {
            suma = suma + array.get(i);
        }
        media = suma / array.size();
        return media;
    }

    public static int menorMedia(ArrayList<Double> array) {

        int menores = 0;
        double media = media(array);
        for (int i = 0; i < array.size(); i++) {
            if (array.get(i) < media) {
                menores++;
            }
        }
        return menores;
    }

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        array = rellenar(-20, 50, 20);
        System.out.println(escribir(array));
        System.out.println(media(array));
        System.out.println(menorMedia(array));
    }

}

I'm learning java and ive been a lot of time trying to solve this but i'm not able to do it pls help!

 

[alexhortdog95]

Seems to be outputting for me...do you have your console hidden?

[46.71589034084988, -15.532088843285749, 14.592210546014854, -2.21839594856079, -3.8681578272422357, 48.4170294425693, 3.4691326677430965, 11.50642829946661, 48.3776175002651, 30.106924816215127, -12.44230425624647, 5.06434485465563, 38.398060590279165, 41.05853363445637, 39.397895907655695, -18.207940456362124, -0.9429396023456178, 10.967568165476152, 37.483262328763345, -17.74343632032006]
15.229981792002363
12

 

[JavaJames]

Works for me too. Does Hello World work for you using the same setup?

 

[Malcolm]

Hey @solrac8686 were you able to resolve this?

 

[gulshan212]

Well, there was some issue woth your code, here is the correct code and I hope you will get what you are looking for.

package ejercicio2;


import java.util.ArrayList;
import java.util.Random;


public class Ejercicio2 {
    private static ArrayList<Double> array = new ArrayList<Double>();


    public static ArrayList<Double> rellenar(double min, double max, int tamaño) {
        Random random = new Random();
        for (int i = 0; i < tamaño; i++) {
            double valor = random.nextDouble() * (max - min) + min;
            array.add(valor);
        }
        return array;
    }


    public static String escribir(ArrayList<Double> array) {
        String cadena = "[";
        for (int i = 0; i < array.size(); i++) {
            double valor = array.get(i);
            if (i == array.size() - 1) {
                cadena = cadena + valor + "]";
            } else {
                cadena = cadena + valor + ", ";
            }
        }


        return cadena;
    }


    public static double media(ArrayList<Double> array) {
        double media = 0;
        double suma = 0;
        for (int i = 0; i < array.size(); i++) {
            suma = suma + array.get(i);
        }
        media = suma / array.size();
        return media;
    }


    public static int menorMedia(ArrayList<Double> array) {
        int menores = 0;
        double media = media(array);
        for (int i = 0; i < array.size(); i++) {
            if (array.get(i) < media) {
                menores++;
            }
        }
        return menores;
    }


    public static void main(String[] args) {
        // TODO Auto-generated method stub
        array = rellenar(-20, 50, 20);
        System.out.println(escribir(array));
        System.out.println(media(array));
        System.out.println(menorMedia(array));
    }
}

Thanks