1 of the presentation says \"These methods are LAZY!\" Iter开发者_运维百科able transform(Iterable, Function)*
I have a data model involving Users and Awards, and joined by a user_awards table. class User < ActiveRecord::Base
When you want to add some extra information into a class, what way would you prefer: would you extend that class or make a wrapper around it?
I have a method that expects a Set parameter.I want to pass in an empty set, and I don\'t want any side effects on the Set.
Is there any collection class in java, that implements pus开发者_Python百科h_back() and push_front() methods?The class java.util.LinkedList has addFirst/Last(), getFirst/last() and removeFirst/Last().
I have a model class that stores keys and values: public class KeyValue { private Object key; private String value;
My need is to have items in kind of Collections.Generic.Dictionary where I can get a struct by it\'s id as a key. Then I have need to fetch many structs, say 1% or less of all items, by another field.
On the very high level, I know that we need to \"wrap\" the primitive data types, such as int and char, by using their respective wrapper c开发者_开发问答lasses to use them within Java collections.I w
How do I test a generic dictionary object to see whether it is empty?I want to run some code as follows:
i have a question about how to do a common programming task in linq. lets say we have do different collections or arrays. What i would like to do is match elements between arrays and if there is a ma
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