Java_ Container Api_collection

1 ImportJava.util.*;2 3  Public classBasiccontainer {4      Public Static voidMain (string[] args) {5Collection C =NewHashSet ();6C.add ("Hello");7C.add (NewName ("F1", "L1"));8C.add (NewInteger (100));9C.remove ("Hello"); TenC.remove (NewInteger (100)); One System.out.println A(C.remove (NewName ("F1", "L1"))); - System.out.println (c); -     } the  -  - } -  + classNameImplementsComparable { -     PrivateString Firstname,lastname; +      PublicName (String firstName, String lastName) { A          This. firstName = FirstName; This. LastName =LastName; at     } -      PublicString Getfirstname () {returnFirstName; } -      PublicString Getlastname () {returnLastName; } -      PublicString toString () {returnFirstName + "" +LastName; } -      -      Public Booleanequals (Object obj) { in         if(objinstanceofName) { -Name name =(Name) obj; to             return(Firstname.equals (name.firstname)) +&&(Lastname.equals (Name.lastname)); -         } the         return Super. Equals (obj); *         } $          Public inthashcode () {Panax Notoginseng             returnFirstname.hashcode (); -         } the          +          A          the          Public intcompareTo (Object o) { +Name n =(Name) o; -         intLASTCMP = $ Lastname.compareto (n.lastname); $         return  -(lastcmp!=0?)lastcmp: - Firstname.compareto (N.firstname)); the     } -         Wuyi}

Java_ Container Api_collection