Java final domain

1  Public Final classThreestooges {2     3     4     /*5 * Stooges is a reference to the Set<string> type, and final qualifies the reference member property stooges to be assigned an initial value and cannot be changed to refer to other similar objects6 * Final only limits the declaration of the reference Stooges cannot be changed, stooges the referenced object can not be changed, by the referenced object itself class definition to determine7      */8     Private FinalSet<string> stooges =NewHashset<string>();9     Ten      Publicthreestooges () { OneStooges.add ("Moe")); AStooges.add ("Larry"); -Stooges.add ("Curly"); -          the         //stooges = new Hashset<string> ();//The final field threestooges.stooges cannot be assigned -     } -      -     /** + * Add an element to the referenced hashset - * Final domain stooges still refers to the HashSet object when the initial value is assigned, and Stooges.add (name); just add an element to the referenced hashset +      * @paramname A      */ at      Public voidAdd (String name) { - Stooges.add (name); -     } -      -      -      Public BooleanIsstooge (String name) { in         returnstooges.contains (name); -     } to      +      -      Public voidprint () { theIterator<string> Iterator =stooges.iterator (); *          while(Iterator.hasnext ()) { $System.out.println (Iterator.next () + ",");Panax Notoginseng         } -     } the      +      A      Public Static voidMain (string[] args) { the          +          -Threestooges ts =Newthreestooges (); $Ts.add ("ASN"); $ Ts.print ();  -     } -}

Output:

Moe,
Asn
Curly,
Larry,

Java final domain