Is there a difference between Map and Hashmap?
855
What does it mean to "program to an interface"?
146732
How does a Java HashMap handle different objects with the same hash code?
74279
Using an sObject as a Map key
62369
Iterate through a HashMap
150692
What's the difference between set and map in C++?
113372
Using streams, how can I map the values in a HashMap?
110080
How to compare two hashmaps in java?
25895
map + parseInt - strange results
15548
Is a Java hashmap search really O(1)?
29042
Can you supply arguments to the map(&:method) syntax in Ruby?
38118
Intersection of java.util.Map
41444
What are the reasons why Map.get(Object key) is not (fully) generic
68500
hashCode() for an array of objects for use in HashMap
32711
What does map(&:name) mean in Ruby?
116826
How to define a map with id and list of records of an object
89487
Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
1423
Scan vs. Map vs. Apply