I have a String like this:
["http://www.ebuy.al/Images/dsc/17470_500_400.jpg", "http://www.ebuy.al/Images/dsc/17471_500_400.jpg"]
How can I convert it into an ArrayList of Strings?
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It looks suspicioulsy like JSON. Is it?FatalError– FatalError2014-09-01 15:16:52 +00:00Commented Sep 1, 2014 at 15:16
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yes, it comes from a JSON serviceXhulio– Xhulio2014-09-01 15:18:01 +00:00Commented Sep 1, 2014 at 15:18
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What is the input of your data ?Damian Leszczyński - Vash– Damian Leszczyński - Vash2014-09-01 15:18:31 +00:00Commented Sep 1, 2014 at 15:18
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1Instead of rolling your own parser I'd suggest checking out a library like Jackson, GSON, or Retrofit.FatalError– FatalError2014-09-01 15:19:46 +00:00Commented Sep 1, 2014 at 15:19
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Sorry, I didn't quite understand your question.Xhulio– Xhulio2014-09-01 15:20:16 +00:00Commented Sep 1, 2014 at 15:20
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4 Answers
Use Arrays#asList
String[] stringArray = { "http://www.ebuy.al/Images/dsc/17470_500_400.jpg", "http://www.ebuy.al/Images/dsc/17471_500_400.jpg"}
List<String> stringList = Arrays.asList(stringArray);
In case your string contains braces [] and double quotes "", then you should parse the string manually first.
String yourString = "[\"http://www.ebuy.al/Images/dsc/17470_500_400.jpg\", \"http://www.ebuy.al/Images/dsc/17471_500_400.jpg\"]";
String[] stringArray = yourString
.substring(1, yourString.length() - 2)
.replace('"', '\0')
.split(",\\s+");
List<String> stringList = Arrays.asList(stringArray);
Try the above if and only if you will always receive your String in this format. Otherwise, use a proper JSON parser library like Jackson.
7 Comments
Xhulio
The String comes to me from the service as below
["http://www.ebuy.al/Images/dsc/17470_500_400.jpg", "http://www.ebuy.al/Images/dsc/17471_500_400.jpg"], now how should I convert into a string without quotations \" .Xhulio
@Luigi from the service I get the exact string:
["http://www.ebuy.al/Images/dsc/17470_500_400.jpg", "http://www.ebuy.al/Images/dsc/17471_500_400.jpg"] Now I want the string to be converted into an arraylist of Strings , and each element to contains this kind of String : ebuy.al/Images/dsc/17470_500_400.jpg in order that I could use as an URL. None of your above methods doenst function
Luiggi Mendoza
@Xhulio first of all, it's you who has to define what you exactly need. Second, we will provide help as far as what you have asked. If you don't ask for it, you won't get that help. I updated my answer to remove the quotes from the String. Note that it was a small modification to the current code that even you could have done if just put a little effort understanding the code rather than just copying/pasting it and hoping for a miracle to make it work for your specific unknown needs.
Xhulio
Sorry I didn't mean to be rude to u, I just got confused with the editing the comment. Apparently I gave the wrong impression :(
Luiggi Mendoza
@Xhulio you don't look rude to me, but lazy, which I find even worse =\
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This would be more appropriate
String jsonArr = "[\"http://www.ebuy.al/Images/dsc/17470_500_400.jpg\",
\"http://www.ebuy.al/Images/dsc/17471_500_400.jpg\"]";
List<String> listFromJsonArray = new ArrayList<String>();
JSONArray jsonArray = new JSONArray(jsonArr);
for(int i =0 ;i<jsonArray.length();i++){
listFromJsonArray.add(jsonArray.get(i).toString());
}
And don't forget to add json library
3 Comments
SparkOn
@LuiggiMendoza ya artifactId json and groupid org.json
Luiggi Mendoza
With yours? I don't know. I haven't tested it.
SparkOn
That is what the OP need to do right as it appears like a json array
You can use simple CSV parser if you remove the first and last brackets ('[',']')
Something like this:
List<String> items = Arrays.asList(str.split("\\s*,\\s*"));
Comments
Method 1: Iterate through the array and put each element to arrayList on every iteration.
Method 2: Use asList() method
Example1: Using asList() method
String[] urStringArray = { "http://www.ebuy.al/Images/dsc/17470_500_400.jpg", "http://www.ebuy.al/Images/dsc/17471_500_400.jpg"}
List<String> newList = Arrays.asList(urStringArray);
Example2 Using simple iteration
List<String> newList = new ArrayList<String>();
for(String aString:urStringArray){
newList.add(aString);
}
