json - Cannot find symbol variable Android Studio -

i working on parsing data json url. jsonobjects have different keys. want data each json object , when doesn't have key want give default message.

this i'm trying use:

if(myjsonobject.has("mykey")) {    <- in case "abv"     //it has it, appropriate processing } 

i got variable

private static final string tag_abv = "abv"; 

i tried doing check if abv key included in json , give string default text of "no value" when not inculed.

if (jsonstr != null) {                 try {                     jsonobject jsonobj = new jsonobject(jsonstr);                      // getting json array node                     data = jsonobj.getjsonarray(tag_data);                      // looping through                      (int = 0; < data.length(); i++) {                           jsonobject c = data.getjsonobject(i);                          if(c.has("abv")) {                             string abv = c.getstring(tag_abv);                         } else {                             string abv = "no value";                         }                          hashmap<string, string> data = new hashmap<string, string>();                          // adding each child node hashmap key => value                          data.put(tag_abv, abv);                          datalist.add(data);                     }                 } catch (jsonexception e) {                     e.printstacktrace();                 }             } else {                 log.e("servicehandler", "couldn't data url");             }              return null;         } 

but have error: cannot find symbol variable abv guess abv inside if statement out scope.

you're declaring abv inside if/else blocks, means it's accessible inside block. when try use later (in data.put(tag_abv, abv); variable created no longer accessible - it's out of scope. if move declaration of abv line before if/else statement, should fix error.