java - putting a set of variables into a loop without arrays

Question

Today I wanted to use the java code below and it did not work of course. I know that in order to process the idea below I should create a basic array which should include all my String variables but... I am wondering is there an option to change my code and process the code without the mentioned basic array ?

ArrayList<String> array = new ArrayList<String>();

String variable1 = "text1";
String variable2 = "text2";
String variable3 = "text3";

for ( int i = 1; i <= 3; i++ ){
array.add(i, variable + i ); // error 
}

thank you in advance !

`variable1`, `variable2`, and `variable3` should just be an array (variable[]). I see what you are trying to do with `variable+i`, but it will not do what you are wanting. You want to use an array. — Rabbit Guy, Apr 12 '16 at 20:32
You are trying to add at index i (which is first 1), hence the error. — Jean-François Savard, Apr 12 '16 at 20:34
IndexOutOfBoundsException - if the index is out of range (index < 0 || index > size())... index here is 1 and size 0. — Jean-François Savard, Apr 12 '16 at 20:34
My comments assume "variable" does exists in your code (and is probably equals to "text" and that variable1,2,3 are there to help point what you are trying to achieve. — Jean-François Savard, Apr 12 '16 at 20:36

Antoniossss · Answer 1 · 2016-04-13T06:09:18.987

0

This is the only reasonable way, if we ignore fact that your array is already a collection.

ArrayList<String> array = new ArrayList<String>();

String[] variables=new String[3];
variables[0] = "text1";
variables[1] = "text2";
variables[2] = "text3";

for ( int i = 0; i < 3; i++ ){
    array.add(variables[i]); // error 
}

edited Apr 13 '16 at 06:09

answered Apr 12 '16 at 20:37

Antoniossss

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`String variables[0]`? – Andy Turner Apr 12 '16 at 20:51
@AndyTurner ahh yes my mistake. You could simply edit the post IMHO :) – Antoniossss Apr 13 '16 at 06:09

java - putting a set of variables into a loop without arrays

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