query: How to include duplicate keys in HashMap?
positive_passages.docid: 56252
positive_passages.text: Map implementation with duplicate keys
negative_passages.docid: 43262
negative_passages.text: Storing arrays in Set and avoiding duplicates
negative_passages.docid: 132703
negative_passages.text: Theoretical limit for number of keys (objects) that can be stored in a HashMap?
negative_passages.docid: 76350
negative_passages.text: Android:Passing a hash map between Activities
negative_passages.docid: 143691
negative_passages.text: Freemarker iterating over hashmap keys
negative_passages.docid: 68500
negative_passages.text: hashCode() for an array of objects for use in HashMap
negative_passages.docid: 99147
negative_passages.text: Does JSON syntax allow duplicate keys in an object?
negative_passages.docid: 76086
negative_passages.text: Why doesn't Java Map extend Collection?
negative_passages.docid: 109376
negative_passages.text: Is indexing a new map element and having something that reads it assigned to it undefined behaviour, or just unspecified?
negative_passages.docid: 74279
negative_passages.text: Using an sObject as a Map key
negative_passages.docid: 76854
negative_passages.text: When does HashSet 'add' method calls equals?
negative_passages.docid: 137854
negative_passages.text: Merging arrays with the same keys
negative_passages.docid: 147372
negative_passages.text: Remove duplicates from ArrayLists
negative_passages.docid: 33215
negative_passages.text: create a map with keys = fields names and values = query result
negative_passages.docid: 15548
negative_passages.text: Is a Java hashmap search really O(1)?
negative_passages.docid: 10788
negative_passages.text: Removing duplicates from a String in Java
negative_passages.docid: 64704
negative_passages.text: Behaviour of LinkedHashMap's keySet() and values() methods