Top "Map" questions

What are the reasons why Map.get(Object key) is not (fully) generic

What are the reasons behind the decision to not have a fully generic get method in the interface of java.…

java generics collections map

Looking for a good world map generation algorithm

I'm working on a Civilization-like game and I'm looking for a good algorithm for generating Earth-like world maps. I've experimented …

algorithm map terrain

When would I use java Collections singletonMap method?

I don't understand why you would need java Collections singletonMap? Is it useful in multithreaded applications?

java collections map

Hashtable in C++?

I usually use C++ stdlib map whenever I need to store some data associated with a specific type of value (…

c++ performance map hashtable complexity-theory

Multi-valued hashtable in Java

Is it possible to have multiple values for the same key in a hash table? If not, can you suggest …

java collections map hashtable multimap

C++ const map element access

I tried to use the operator[] access the element in a const C++ map, but this method failed. I also …

c++ stl map constants

Calculating area of a polygon drawn on google map

I am looking for an accurate algorithm or a service to calculate surface area on earth where points are calculated …

google-maps map google-maps-api-3 gps polygon

Can't use enum class as unordered_map key

I have a class containing an enum class. class Shader { public: enum class Type { Vertex = GL_VERTEX_SHADER, Geometry = GL_…

c++ c++11 map enums enum-class

Does Java have a HashMap with reverse lookup?

I have data that is organized in kind of a "key-key" format, rather than "key-value". It's like a HashMap, but …

java map hashmap bidirectional reverse-lookup

Apply css to AREA MAP

I'm created a very large map with many poly areas (over 20 coordinates each) for regions within the map. However, you …

html css map area