android - Get a string value out of a thread -

i have string variable, , set it's value inside thread, since it's using netwok operation.

how can access values stored in strings?

public class homeactivity extends appcompatactivity {  // initialize aws dynamodb client public static amazondynamodbclient ddbclient; public static dynamodbmapper mapper; public static aqua aqua;  // app details public static string = "a"; public static string b; public static boolean c; public static string d; public static string e; public static string f;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_home);      // initialize amazon cognito credentials provider     cognitocachingcredentialsprovider credentialsprovider = new cognitocachingcredentialsprovider(             getapplicationcontext(),             "******", // identity pool id             regions.**** // region     );      // initialize aws dynamodb     ddbclient = new amazondynamodbclient(credentialsprovider);     mapper = new dynamodbmapper(ddbclient);      thread thread = new thread(new runnable() {         @override         public void run() {             try {                 // app details                 aqua = mapper.load(aqua.class, a);                 b = aqua.getb();                 c = aqua.getc();                 d = aqua.getd();                 e = aqua.gete();                 f = aqua.getf();             } catch (exception e) {                 log.e("error", e.getmessage());             }         }     });     thread.start(); } } 

use executorservice , submit callable (below assumes want data stored inside b,c,d,e,f):

executorservice exec = executors.newsinglethreadexecutor(); future<string[]> future = exec.submit(new callable<string[]>() {     @override     public string[] call() {         try {             // app details             aqua = mapper.load(aqua.class, a);             b = aqua.getb();             c = aqua.getc();             d = aqua.getd();             e = aqua.gete();             f = aqua.getf();         } catch (exception e) {             log.e("error", e.getmessage());         }         return new string[] {b, c, d, e, f};     } }); // ... b @ value[0], c @ value[1] string[] value = future.get();