Apache
/
commons-collections
mirror of https://github.com/apache/commons-collections.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Deprecating. I'd like to remove this class, if no one has any issues. 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/collections/trunk@130482 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Rodney Waldhoff 2001-05-16 22:19:23 +00:00
parent 284b6f5477
commit ffe28c43e0
1 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/java/org/apache/commons/collections/ListUtils.java
View File

@ -16,19 +16,20 @@ import java.util.List;
* *
* @author <a href="mailto:fede@apache.org">Federico Barbieri</a> * @author <a href="mailto:fede@apache.org">Federico Barbieri</a>
* @author <a href="mailto:donaldp@apache.org">Peter Donald</a> * @author <a href="mailto:donaldp@apache.org">Peter Donald</a>
* @deprecated See {@link org.apache.commons.collections.CollectionUtils}.
*/ */
public class ListUtils public class ListUtils
{ {
public static List intersection( final List list1, final List list2 ) public static List intersection( final List list1, final List list2 )
{ {
final ArrayList result = new ArrayList(); final ArrayList result = new ArrayList();
final Iterator iterator = list2.iterator(); final Iterator iterator = list2.iterator();
while( iterator.hasNext() ) while( iterator.hasNext() )
{ {
final Object o = iterator.next(); final Object o = iterator.next();
if ( list1.contains( o ) ) if ( list1.contains( o ) )
{ {
result.add( o ); result.add( o );
} }
@ -36,27 +37,27 @@ public class ListUtils
return result; return result;
} }
public static List subtract( final List list1, final List list2 ) public static List subtract( final List list1, final List list2 )
{ {
final ArrayList result = new ArrayList( list1 ); final ArrayList result = new ArrayList( list1 );
final Iterator iterator = list2.iterator(); final Iterator iterator = list2.iterator();
while( iterator.hasNext() ) while( iterator.hasNext() )
{ {
result.remove( iterator.next() ); result.remove( iterator.next() );
} }
return result; return result;
} }
public static List sum( final List list1, final List list2 ) public static List sum( final List list1, final List list2 )
{ {
return subtract( union( list1, list2 ), return subtract( union( list1, list2 ),
intersection( list1, list2 ) ); intersection( list1, list2 ) );
} }
public static List union( final List list1, final List list2 ) public static List union( final List list1, final List list2 )
{ {
final ArrayList result = new ArrayList( list1 ); final ArrayList result = new ArrayList( list1 );
result.addAll( list2 ); result.addAll( list2 );