CODEWITHSUNDEEP
javaandroidjson
madzilla
madzilla

Reputation: 352

JSON formatted string to String Array

I'm using a simple php API (that I wrote) that returns a JSON formatted string such as:

[["Air Fortress","5639"],["Altered Beast","6091"],["American Gladiators","6024"],["Bases Loaded II: Second Season","5975"],["Battle Tank","5944"]]

I now have a String that contains the JSON formatted string but need to convert it into two String arrays, one for name and one for id. Are there any quick paths to accomplishing this?

Upvotes: 2

Views: 12585

Answers (1)

dogbane
dogbane

Reputation: 274592

You can use the org.json library to convert your json string to a JSONArray which you can then iterate over.

For example:

String jsonString = "[[\"Air Fortress\",\"5639\"],[\"Altered Beast\",\"6091\"],[\"American Gladiators\",\"6024\"],[\"Bases Loaded II: Second Season\",\"5975\"],[\"Battle Tank\",\"5944\"]]";

List<String> names = new ArrayList<String>();
List<String> ids = new ArrayList<String>();
JSONArray array = new JSONArray(jsonString);
for(int i = 0 ; i < array.length(); i++){
    JSONArray subArray = (JSONArray)array.get(i);
    String name = (String)subArray.get(0);
    names.add(name);
    String id = (String)subArray.get(1);
    ids.add(id);
}

//to convert the lists to arrays
String[] nameArray = names.toArray(new String[0]);
String[] idArray = ids.toArray(new String[0]);

You can even use a regex to get the job done, although its much better to use a json library to parse json:

List<String> names = new ArrayList<String>();
List<String> ids = new ArrayList<String>();
Pattern p = Pattern.compile("\"(.*?)\",\"(.*?)\"") ;
Matcher m = p.matcher(s);
while(m.find()){
    names.add(m.group(1));
    ids.add(m.group(2));
}

Upvotes: 6

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