Android/Java : Returning postion of Array

Question

I'm working on an app that register the answers each user introduces. For this purpose I have an Array where depending on what each user answers.

What I want to do is to get those answers and use them in another class for example in order to serialize these answers in XML.

I would like to know if there is a way of returning in a simpler way the answers. What I have now is the following code but its quite unproductive:

        public static String[] Respuestas = {"","","","","","","","","","","","","","","","","","","","","","","","","","","","","",""};

       public static String getRespuesta1(){
            return Respuestas[0];
        }
        public static String getRespuesta2(){
            return Respuestas[1];
        }

And so on until get Respuesta30().

test · Accepted Answer · 2013-02-25 10:31:13Z

3

You do not have to create 30 methods for this situation, can't you simply call:

MyClass.Respuestas[x]; //where x is any number from 0 to 30?

If you really need a method, which, judging by this snippet of code you don't seem to need it, then pass the index as a parameter:

public static String getRespuestaByIndex(int index)
{
    return Respuestas[index];
}

edited Feb 25, 2013 at 10:31

answered Feb 25, 2013 at 10:17

test

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Comments

Ivaylo Strandjev · Accepted Answer · 2013-02-25 10:17:39Z

1

Add an integer argument to the method getRespuesta that specifies the index you are interested in. Having a separate method for each element is not a good idea at all.

answered Feb 25, 2013 at 10:17

Ivaylo Strandjev

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Comments

g00dy · Accepted Answer · 2013-02-26 08:32:19Z

0

The above method is an obviously better solution for your task, than having 30 functions that do the same thing. One more thing, define the array like this please:

public static String[] Respuestas = new String[30];

You may set the iterations inside the square brackets too [] , but I don't think that you need that.

edited Feb 26, 2013 at 8:32

answered Feb 25, 2013 at 10:21

g00dy

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2 Comments

Katherine99 Over a year ago

Hi if i do that it says NullPointerException.

g00dy Over a year ago

Sorry, corrected it. I don't know why I wrote it, but yeah, the null pointer exception comes from the fact, that there isn't any alocated space for the array.

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