How can I update the values of one hashtable by another hashtable, if second hashtable c开发者_Python百科ontains new keys then they must be added to 1st else should update the value of 1st hashtable.
I am looking to implemen开发者_如何学运维t a sort feature for my address book application. I want to sort an ArrayList<Contact> contactArray. Contact is a class which contains four fields: name
I have a Collection<T>. I have a class TManager imp开发者_如何学Clementing an interface UManager which has a method getCollection() that needs to return a Collection<U> where U is an inter
I\'m interested in sorting a collection, but also returning an index which can be used to map to the original position in the collection (before the sort).
Beginner\'s question: How to implement a generic list List<Item> returning items with a property named Data but returning different types for different subclasses? I started building the followi
I have a question about simplifying some Collection handling code, when using Google Collections (update: Guava).
I\'m working on a Flex 3 project, and I\'m using a pair of XMLListCollection(s) to manage a combobox and a data grid.
I have Item objects which have a collection of attributes defined as a map. Now I want to retrieve all objects which have a specific attribute (by name, locale and value)
Is there an analogous method to StringUtils.defaultString for collections, so you can avoid checking for null value, since in most cases, the desired effect is the same as if it were an empty list?
I\'m trying to map a collection (of type map) using a foreign key and a fixed value as the key/mapping arguments.
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