You should cast the contactObj to the class whose primitive you want to access. Ex, if your class for contactObj is Contact
, then you should do:
Contact contactObj = (Contact) map.get("contacts");
and then you can access the methods/primitives in the class that are accessible from this point. Ex, say your class is like
Class Contact{
String firstname;
public String getFirstName(){
return this.firstname;
}
}
So, you can access the first name like as shown below:
contactObj.getFirstName();