super();
Construct a new instance, adding all the members from the given collection. Precondition - all members of the collection are instances of the {@link ContactData} class postcondition - the returned instance contains all the members of the given collection, and only those membersparamc the given collectionthrowsNullPointerException if c is nullthrowsClassCastException if one of the members of c is not an instance of the {@link ContactData} class super(c);
Precondition - all members of the collection are instances of the {@link ContactData} class
postcondition - the returned instance contains all the members of the given collection, and only those members
super(c);
super(initialCapacity);
super(initialCapacity, loadFactor);
Add the given object to the receiver. precondition - the given object is an instance of the {@link ContactData} class postcondition - the receiver contains the given objectparamo the object to be addedreturntrue iff the receiver changed as a result of adding this objectthrowsNullPointerException if the object is nullthrowsClassCastException if the object is not an instance of {@link ContactData} class return super.add((ContactData) o);
precondition - the given object is an instance of the {@link ContactData} class
postcondition - the receiver contains the given object
return super.add((ContactData) o);