addGas Method - Intro to Java ProgrammingYouTube↗  IA↗(long shot)
Education  3K views 3 likes 0 dislikes   23 Feb 2015
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Alright. Now, you've discovered together with Sarah what instance variables are
Perfecto. Bien, hemos descubierto junto con Sara qué variables de instancia
needed for the person class. So, let's return to our car example and let's
son necesarias para la clase Persona. Así que, volvamos a nuestro ejemplo Coche y
start implementing some methods. First off, when you implement a class, you put
comencemos a implementar algunos métodos. En primer lugar, cuando implementen una clase, pongan
everything inside a class declaration, which has the keyword class followed by
todo dentro de una declaración de clase, que tiene la palabra clave clase seguida del
the name of the class, and we generally make all classes public because we want
nombre de la clase, y en general, hacemos todas las clases públicas porque queremos
everyone to use them. Inside the class, go the instance variable declarations,
que todo mundo las use. Dentro de la clase, van las declaraciones de variables de instancia,
as well as the implementations of the methods. So far, I've just put in the
así como las implementaciones de los métodos. Hasta ahora, solo he puesto
method headers here. And we're going to add the method implementations in just
las cabeceras de los métodos aquí. Y vamos a añadir las implementaciones del método en solo
a minute. Alright, let's get going. Here is our car class. Here are the
un minuto. Perfecto, vamos a iniciar. Aquí está nuestra clase Coche Estas son las
instance variables, here is the header of the first method, and we'll put the
variables de instancia, está es la cabecera del primer método, y vamos a poner la
implementation inside this pair of braces. Now, what do we need to do? Let's
implementación dentro de este par de llaves. Ahora, ¿qué es lo que tenemos que hacer? Vamos a
say we drive a distance of 100 miles. Then we need to take the miles driven so
decir que conducimos una distancia de 100 millas. Entonces necesitamos tomar las millas recorridas hasta
far. And add the distance to it. That's how the statement looks like. You take
ese momento. Y añadan la distancia a la misma. Así es como se ve la sentencia. Tomen
the miles driven and add the distance, say 100. Now, miles driven is 100 miles
las millas recorridas y añadan la distancia, digamos 100. Ahora las millas recorridas son 100 millas
bigger. And we put it back into the variable, so now the variable is updated.
más grandes. Lo ponemos de vuelta en la variable, de este modo ahora la variable está actualizada.
Of course, when you drive, you also lower the amount of gas in the take, but
Por supuesto, cuando ustedes conducen, también baja la cantidad de combustible en el tanque, pero
we'll come back to that later. Right now, it's your turn, go ahead and
vamos a volver a eso después. Ahora, es su turno, prosigan e
implement the addGas method. Simply put in the code for the method inside this
implementen el método «addGas». Simplemente pongan el código para el método dentro de este
text field.
cuadro de texto.
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