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3 questions
0votes
1answer
828views
Efficiency in Java: Object reference vs id reference
I have to represent a certain data structure, in which I have nodes that are related between them. Each node has its numeric id, and a list containing the next directly related nodes and another list ...
0votes
0answers
132views
Best datastructure to use
I am using Amazon's dynamodb nosql database and as a result I need to think of some ways to do certain operations to fit into their limits (e.g 4k item limit, can't combine small items into the same ...
3votes
1answer
345views
What to do when properties of a HashMap and ArrrayList are neccessary?
I have a data structure that stores various permission groups for a multiplayer game server. There is an instance of a "Rank" class for each permission group. Each rank also has a name. I need to be ...