hello-java/basic/c05_structures/Arrays.java at main · mouredev/hello-java · GitHub

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package basic.c05_structures;

/*
Clase 40 - Arrays
Vídeo: https://youtu.be/JOAqpdM36wI?t=11194
*/

public class Arrays {

    public static void main(String[] args) {

        // Declaración y creación
        int[] numbers = new int[3];
        System.out.println(numbers);

        String[] names = {"Brais", "Moure", "mouredev"};
        System.out.println(names);

        // Acceso
        System.out.println(numbers[0]);
        System.out.println(names[0]);

        System.out.println((new String[3])[0]);

        // Modificación
        numbers[0] = 1;
        numbers[1] = 10;
        System.out.println(numbers[0]);
        System.out.println(numbers[1]);

        // numbers[3] = 2; Error

        System.out.println(names[2]);
        names[2] = "mouredev@gmail.com";
        System.out.println(names[2]);

        System.out.println(names.length);
        names[2] = null;
        System.out.println(names[2]);
        System.out.println(names.length);

        // numbers[2] = null; Error

        boolean[] booleans = new boolean[5];
        System.out.println(booleans[4]);
    }
}