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Questions tagged hashset

22 questions

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11
votes
4
answers

hashcode() and equals() method

java equals hashcode hashset
asked 2013-07-29T08:40:33.773
127
votes
7
answers

Make HashSet<string> case-insensitive

c# .net hashset
asked 2013-06-04T16:01:18.167
18
votes
3
answers

Java code using HashSet of longs doesn't work?

java long-integer hashset
asked 2013-06-03T16:44:46.467
21
votes
4
answers

HashSet contains duplicate entries

java set unique hashset
asked 2013-04-26T13:51:32.307
17
votes
1
answers

Hash-consing in F# and weak hash tables in .net

.net f# hashmap hashset
asked 2013-03-25T14:11:14.560
165
votes
9
answers

Does adding a duplicate value to a HashSet/HashMap replace the previous value

java hashmap duplicates hashset
asked 2012-10-17T18:14:14.990
9
votes
4
answers

What does a hashset do with memory when initializing a collection?

c# performance memory collections hashset
asked 2012-07-19T08:43:39.977
21
votes
4
answers

How do HashSets in Java work?

java hashset
asked 2012-02-02T20:52:38.157
41
votes
3
answers

Converting from HashSet<String> to String[]

java arrays hashset
asked 2011-03-29T15:01:01.993
16
votes
4
answers

HashSet contains problem with custom objects

java hashcode hashset
asked 2011-02-24T20:56:41.277
449
votes
5
answers

Define: What is a HashSet?

c# hashset
asked 2010-12-29T23:24:25.253
9
votes
4
answers

Why does HashSet have "Hash" in its name?

java hashmap hashset
asked 2010-11-03T01:48:13.467
146
votes
5
answers

HashSet<T> versus Dictionary<K, V> w.r.t searching time to find if an item exists

.net performance dictionary hashset
asked 2010-04-28T10:11:19.157
72
votes
4
answers

How to use HashSet<string>.Contains() method in case -insensitive mode?

c# string hashset
asked 2010-04-19T13:16:00.260
10
votes
3
answers

Java: fast disk-based hash set

java hashset disk-based
asked 2010-02-27T08:47:59.910
32
votes
6
answers

.NET: How to efficiently check for uniqueness in a List<string> of 50,000 items?

c# .net list collections hashset
asked 2009-12-07T14:29:16.793
36
votes
12
answers

Why can't I retrieve an item from a HashSet without enumeration?

c# java hashset
asked 2009-09-29T20:41:05.070
166
votes
12
answers

When should I use the HashSet<T> type?

c# .net data-structures hashset
asked 2009-08-07T23:25:35.597
140
votes
7
answers

Remove Elements from a HashSet while Iterating

java iteration hashmap hashset
asked 2009-07-10T15:52:36.210
30
votes
7
answers

Why have HashSet but not Set in C#?

c# set hashset
asked 2009-06-21T11:21:18.257
12
votes
2
answers

Why is HashSet<T>.IsReadOnly explicit?

c# interface hashset icollection explicit-interface
asked 2009-04-13T09:59:31.117
87
votes
7
answers

Does HashSet preserve insertion order?

.net hashset
asked 2009-03-18T07:39:10.180