import java.util.*; public class ReturnMultipleValue { public static void main(String[] args) throws Exception { try { System.out.println("➡️ I have created a class ValueObject which can store multiple data.\n\nYou can store any type of data like HashMap, List, String, Long, Double, Integer.\n\nIt is useful when you work with large scale of project and want to return multiple data !⬅️\n"); System.out.println("⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️⚛️\n"); /* Call method to get data */ getMultipleData(); System.out.println("\n↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️↔️\n"); } catch(Exception e) { throw e; } } /* Return multiple data */ public static void getMultipleData() throws Exception { ValueObject vo = null; List slPeoplesId = null; HashMap slPeoples = null; long codeCreatorId = 0L; String codeCreatorName = null; try { vo = setMultipleData(); slPeoplesId = (List) vo.get("slPeoplesId"); slPeoples = (HashMap) vo.get("slPeoples"); codeCreatorId = Long.parseLong(vo.get("codeCreatorId").toString()); codeCreatorName = (String) vo.get("codeCreatorName"); System.out.println("Code Creator Id : " + codeCreatorId); System.out.println("Code Creator Name : " + codeCreatorName + "\n"); for(Long l : slPeoplesId) { System.out.print("🚹 SL User Id : " + l); System.out.println(", SL User Name : " + slPeoples.get(l) + "\n"); } } catch(Exception e) { throw e; } finally {//It is necessary to nullify objects vo = null; slPeoplesId = null; slPeoples = null; } } /* This method returns a ValueObject which can store any type of data */ public static ValueObject setMultipleData() throws Exception { ValueObject vo = null; List slPeoplesId = null; HashMap slPeoples = null; try { slPeoplesId = new ArrayList(); slPeoplesId.add(7920723L); slPeoplesId.add(2200299L); slPeoplesId.add(7885877L); slPeoples = new HashMap(); slPeoples.put(7920723L, "AJ Anant"); slPeoples.put(2200299L, "Prometheus"); slPeoples.put(7885877L, "BroFar"); vo = new ValueObject(); //Store list vo.put("slPeoplesId", slPeoplesId); //Store HashMap vo.put("slPeoples", slPeoples); //Store Long value vo.put("codeCreatorId", 7920723L); //Store String value vo.put("codeCreatorName", "AJ Anant"); return vo; } catch(Exception e) { throw e; //e.printStackTrace(); } finally {//It is necessary to nullify objects vo = null; slPeoplesId = null; slPeoples = null; } } } /* Here I have created a class which can store different type of data like List, HashMap, Long, Double It is useful when you work on large scale of project */ class ValueObject { private HashMap htData = new HashMap(); /* This method is to store any type of data */ public void put(Object paramName, Object object) throws Exception { try { if ((paramName != null) && (object != null)) { htData.put(paramName, object); } } catch (Exception e) { throw e; } } /* * Get any type of data from hashmap */ public Object get(Object paramName) throws Exception { Object returnValue = null; try { if (paramName != null && htData.containsKey(paramName)) { returnValue = htData.get(paramName); } return returnValue; } catch (Exception e) { throw e; } finally { returnValue = null; } } }

Return Multiple Value From a Single Method