Get the first item of linkedhashmap
73274
Java LinkedHashMap get first or last entry
119120
How to get first element in a list of tuples?
6330
What's the difference between ConcurrentHashMap and Collections.synchronizedMap(Map)?
102973
Why can I access an item in KeyCollection/ValueCollection by index even if it doesn't implement IList(Of Key)?
91079
How to get position of key/value in LinkedHashMap using its key
91577
How to select the first element of a set with JSTL?
62369
Iterate through a HashMap
89427
Retaining and reusing a one-to-one mapping from a sort
137135
Providing an iterator for the first element of a container of pairs
138201
How to iterate hashmap in reverse order in Java
109376
Is indexing a new map element and having something that reads it assigned to it undefined behaviour, or just unspecified?
124572
EL access a map value by Integer key
122146
Pandas - Get first row value of a given column
23973
Impossible to use ref and out for first ("this") parameter in Extension methods?
69072
Using LINQ to find item in a List but get "Value cannot be null. Parameter name: source"
8937
How do I reference the only element in a singleton set?
90919
Passing a single item as IEnumerable