We are used to saying that HashMap get/put operations are O(1). However it depends on the hash implementation. The default object hash is actually the internal address in the JVM heap. Are we sure it
private HashMap<String, IMapper> mapper = new HashMap<String, IMapper>(); Seems so innocent yet Eclipse is complaining about the semi-colon, of all things.
I have a problem in understanding how to readout a array that I put into the hash map. (By the way I need to put in different data types into the hash map, single values and also arrays, thatsway I us
I have the following code: payoffs2exchanges.put(point, exchange); if (!payoffs2exchanges.containsKey(point) ) {
I already know how to do it 开发者_如何转开发the hard way and got it working - iterating over entries and swapping \"manually\". But i wonder if, like so many tasks,this one can be solved in a more el
Six years ago, I burned several days trying to hunt down where my perfectly deterministic framework was responding randomly开发者_如何转开发. After meticulously chasing the entire framework ensuring t
I am beginner in c++ and have some problem with hash table. I need a Hash table structure for my program. first I use boost unordered_map. it have all things that I need, but it make my program so slo
I have a HashMap<String,String> (called p2p) and I want to make a loop over its elements. I found the following simple way to do it:
For one of my applications, the following function has to be called very often. This function takes up a lot of CPU and henc开发者_如何学Pythone I am wondering if you know how to improve the performan
In Java, I\'m trying to retrieve a HashMap<String, Object> that has the Object which is: HashMap<String, Object&g开发者_StackOverflowt;.
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