从Collection中选取对象的一种优雅写法

Source link: http://stackoverflow.com/questions/587404/java-finding-objects-in-collections/588452#588452

Sample code is:

public  static  void  main(String[] args) {

            Collection<String> bigList =  new  ArrayList<String>();

            bigList.add(  "Nick" );

            bigList.add(  "Bay" );

            bigList.add(  "Lei" );

            bigList.add(  "Jonna" );

            System. out.println(bigList);

            Collection<String> smallList = CollectionUtils. select(bigList,  new  Predicate(){

                    public  boolean  evaluate(Object o) {

                  String attribute = (String)o;

                     return  attribute.equals( "Jonna" ) || attribute.equals( "Bay"  ) ;

                }

            }) ;

            

            System.  out .println(smallList);

      }

output: 

[Jonna, Bay]