Whole document tree

www.fifi.org
    Documentation
        Manpages
        GNU Info
        Debian document tree
        Whole document tree
    Trigance web page
    Public services
    User info
    Mailing lists
    Secure server
    Multilingual usage

Copyright (C) 2000-2012
Philippe Troin
<webmaster@fifi.org>.

Validate HTML
Validate CSS

Whole document tree

Collections Framework Change Summary

Collections Framework API Change Summary

This page summarizes the differences between the 1.2 and 1.3 releases of the Collections Framework, along with a brief rationale for each change.

Convenience Implementations

Added singletonList and singletonMap. Previously, there was a convenience implementation for singleton Set, but no corresponding implementation for List and Map.

Added EMPTY_MAP. Previously, there were constants for the empty Set and List, but no corresponding constant for Map.

Special-purpose Implementation

Added Map constuctor for WeakHashMap. The Map interface dictates that most Map implementations should have a "copy constructor" that takes a Map argument. WeakHashMap lacked such a constructor in the 1.2 release.

Copyright © 1995-99 Sun Microsystems, Inc. All Rights Reserved.

Please send comments to: collections-comments@java.sun.com

Java Software