c# – ¿Como es posible que las variables de una clase puedan mantener varios valores por cada objeto?

Tengo una clase definida con los siguientes atributos o variables de tipo id y string

 public class Order{
    private int id = 9;
    private string latitudeCustomer = "123211";
    private string longitudeCustomer = "123421";

    public Order(string lat,string long){
       latitudeCustomer = lat;
       longitudeCustomer = long;
    }


    public void printOrder(){
        Console.WriteLine($"{id}{latitudeCustomer}{longitudCustomer}");
    }
 }

Luego en el método main, creo una variable del tipo de la clase para almacenar un objeto de ese tipo:

Luego de almacenar el objeto de ese tipo invoco al método que tiene ese objeto…entonces el método puede leer las variables de la clase…igual puedo crear otra variable de tipo Order e invocar al método.

Se puede decir que las dos variables tienen valores diferentes…ambas ejecutan al método y para cada objeto, se imprimen los valores que se pasaron como argumento al constructor, al instanciar cada uno.

class Program{

   public static void main(string() args){
     Order o0 = new Order("45","67");
     Order o1 = new Order("12","14");
     o1.printOrder();  //imprime 9 12 14
     o0.printOrder();  //imprime 9 45 67

   }

}

En este caso, constructor asigna dos veces valores a las variables de la clase. pero las dos parejas de valores persisten, no se sostiene un solo valor y me preguntaba como eso era posible. si hiciera publica esas variables y por medio de o0 hago esto o0.latitudeCustomer = 98; el 98 solo se imprime cuando ejecuto el método por medio de o0 pero para o1 si leo el valor de esa misma variable siempre queda igual sin sobrescribirse a pesar de que por medio de o0 latitudeCustomer fue asignado el valor 98 a la variable definida en la clase.

Pubcon Pro Las Vegas 2020 Goes Online

Brett Tabke has announced that Pubcon Pro for Las Vegas 2020 is to move online.

plugin – Necesito un plug para “VIM” que me autocomplete o auto-cierre las llaves, corchete etc

Hola y muy buenas tardes a todos, estoy aca para preguntarles si alguien me podria indicar algun autocompletado o bueno auto-cerrado de llaves para “VIM”, corchete etc, enfocado en “JS” aunque igual deberia funcionar en cualquier lenguaje

Llevo trabajando con “VIM” Hace un par de semanas asi que me considero muy nuevo todavia y no en logrado poder encontrar ese plug, o alguna config que ya venga con “VIM” Agradezco su ayuda!

bash – buscar un archivo dentro de otro e imprimir las coincidencias

tengo dos archivos
archivo 1

1,3,1,1,1,3,1,3,SRR9831337
1,3,1,1,1,3,1,3,SRR9831339
121,7,6,8,8,6,37,1,SRR9831336
129,90,24,155,189,117,244,66,H38
4,1,2,12,3,2,5,3,AW73
599,70,80,30,33,45,240,68,AW71
689,8,6,8,6,1,37,1,AW72
876,125,1,1,1,3,1,3,SRR9831338
ST,abcZ,bglA,cat,dapE,dat,ldh,lhkA,Sample

Archivo2

1,3,1,1,1,3,1,3,CC1,I,
121,7,6,8,8,6,37,1,CC121,II,
129,90,24,155,189,117,244,66,ST129,L.,welshimeri
4,1,2,12,3,2,5,3,CC4,I,
599,70,80,30,33,45,240,68,ST599,L.,innocua
689,8,6,8,6,1,37,1,CC689,II,
876,125,1,1,1,3,1,3,CC1,I,
ST,abcZ,bglA,cat,dapE,dat,ldh,lhkA,CC,Lineage,

Como puedo hacer para que las coincidencias se impriman en un solo archivo?

Ya he intentado con:

grep -f archivo1 archivo2

pero no tengo exito,
también con

join -t , archivo1 archivo2

y obtengo un archivo como el siguiente:

 1,3,1,1,1,3,1,3,CC1,I,,3,1,1,1,3,1,3,SRR9831335
1,3,1,1,1,3,1,3,CC1,I,,3,1,1,1,3,1,3,SRR9831337
1,3,1,1,1,3,1,3,CC1,I,,3,1,1,1,3,1,3,SRR9831339
121,7,6,8,8,6,37,1,CC121,II,,7,6,8,8,6,37,1,SRR9831336
129,90,24,155,189,117,244,66,ST129,L.,welshimeri,90,24,155,189,117,244,66,H38
4,1,2,12,3,2,5,3,CC4,I,,1,2,12,3,2,5,3,AW73
599,70,80,30,33,45,240,68,ST599,L.,innocua,70,80,30,33,45,240,68,AW71
689,8,6,8,6,1,37,1,CC689,II,,8,6,8,6,1,37,1,AW72
876,125,1,1,1,3,1,3,CC1,I,,125,1,1,1,3,1,3,SRR9831338
ST,abcZ,bglA,cat,dapE,dat,ldh,lhkA,CC,Lineage,,abcZ,bglA,cat,dapE,dat,ldh,lhkA,Sample

sin embargo cualdo quiero borrar las columnas no me lo permite

Al final de cuentas lo que deseo es que me imprima un archivo con las columnas 1,9,10,19

Javascript | Botón suma las veces que hemos pulsado el botón. Pero por error sólo suma si refresco la página

EL objetivo es que al pulsar el botón “siguiente número”, los números vayan aumentando. Pero sólo me cuenta el siguiente número si refresco la página. Si no refresco la página y le doy al botón no me sigue contando. ¿Qué hago mal?

JAVASCRIPT:

<script>
    function count() {
        if (localStorage.getItem("count") === null) {
        count=0;
        }
        else{
        count= localStorage.getItem('count');
        }
        count++;
        localStorage.setItem('count', count);
        count = localStorage.getItem('count');
        document.getElementById("write").innerHTML = count;
      }
</script>

HTML:

  <h1 id="write">0</h1>
  <button id="idButton" onclick='count()'>Siguiente número</button>

¿ Como completar los datos, nulos o perdidos de las siguientes condiciones? o ¿R – Python?

Dato A B C D E F
A1 5.1 x2 1.4 0.5 9 10
A1 4.9 3.0 1.9 0.1 X5 30
A2 4.7 3.2 x3 0.3 20 28
A1 x1 3.1 1.5 0.9 x6 35
A2 5.0 3.6 1.4 x4 14 22

Buenas con todos: ¿Como completar con código R o Python?

columna A: completar x1; con el promedio de la columna A. x1 = (5.1 + 4.9 + 4.7 + 5.0)/4
columna B: Completar x2, con el dato mínimo de la columna B. x2 = 3.0
columna C: Completar x3, con el promedio de (x3-1 + x3+1)/2. x3 = (1.9 + 1.5)/2
columna D: Completar x4, con el primer valor de la columna. x4 = 0.5
columna E: Completar x5 y X6, con el promedio de los datos. x5 = (9 + 20)/2 y x6 = (20 + 14)/2
columna F: Cambiar los valores de la columna dato A1, en la columna F por 999:
Resultado objetivo:
Dato F
A1 999
A1 999
A2 28
A1 999
A2 22

Las condiciones de estos ejemplos es en un data frame; estaré agradecido por la respuesta.

wireshark – Listar las direcciones IP destino DIFERENTES que hay en un tcpdump

No tengo claro si en este foro se tratan temas de redes, pero lo voy a intentar. Estamos realizando la migración de varios servidores y ahora estamos analizando el trafico de datos de nuestra empresa en busca de peticiones inútiles o maliciosas( peticiones a servicios que no existen o no existirán, a servicios que ya no usamos, o peticiones que no hayamos programado nosotros).

Entonces, teniendo un archivo con las peticiones extraídas por tcpdump, y analizándolo con Wireshark, me gustaría sacar un listado de las direcciones IP de destino diferentes a las que se hayan lanzado peticiones. Es decir, mostrar cada IP una sola vez, obviando las repeticiones (en el archivo puedo tener a lo mejor 1000 peticiones a una misma IP, quiero que solo salga una vez) para después investigar esas direcciones y gestionar las peticiones que queremos mantener y las que queremos eliminar.

Creo que la solución a esto puede ser mas sencilla de lo que pienso, pero soy bastante novato en temas de redes, espero que alguien pueda ayudarme. En caso de que este no sea el lugar apropiado para este tipo de consulta, agradeceré cualquier información sobre otros foros dedicados a las redes donde pueda volver a formularla.

Muchas gracias!

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html – Cómo colorear (o averiguar las coordenadas) en Javascript del espacio en el que no está la figura

Estoy empezando en Javascript, Jquery, etc y quería saber cómo puedo saber las coordenadas del espacio en el que no está la figura, o bien (también me serviría), colorear dicho espacio de cualquier color. ¿Existe alguna propiedad, función, etc para ello o habría que hacerlo “a mano”? He utilizado el código de una web que he modificado un poco para generar la figura y que se entienda algo mejor. Muchas gracias.

   <!DOCTYPE HTML>
     <html>
      <body>
         <canvas id="myCanvas" width="500" height="500"></canvas>
           <script>
              var canvas = document.getElementById('myCanvas');
              var context = canvas.getContext('2d');

                 context.beginPath();
                 context.moveTo(170, 80);
                 context.bezierCurveTo(130, 100, 130, 150, 230, 150);
                 context.bezierCurveTo(250, 180, 320, 180, 340, 150);
                 context.bezierCurveTo(220, 120, 420, 120, 390, 100);
                 context.bezierCurveTo(200, 5, 150, 20, 170, 80);

                 context.closePath();
                 context.lineWidth = 2;
                 context.stroke();
               </script>
           </body>
        </html>