public class StoreSomethingObjMain { public static void main(String[] args) { StoreSomethingObjCon a = new StoreSomethingObjCon("I'm a String"); System.out.println(a.get()); a.set("new String"); System.out.println(a.get()); StoreSomethingObj b = new StoreSomethingObj(); b.set("I'm var b"); System.out.println(b.get()); b.set("new b"); System.out.println(b.get()); } }