![]() ![]() The initial default capacity of the HashMap is 16`. The initial capacity is the capacity at which the Map is created. This helps it quickly find all Node(s) with the same specified hashcode.Ĭapacity: Capacity is the number of buckets in the HashMap. HashMap ensures those Node(s) having the same hashcode will have consecutive references. It may not be the next element in the array. The next field is a reference to the next Node object. HashMap manages an array of Node objects that will be replaced by another larger array if all of its elements has been assigned value. ![]() So the Hash function is applied to the key object to calculate the index of the bucket in order to store and retrieve any key-value pair. hashCode() method of object class returns the memory reference of object in integer form. Hashing is a process of converting an object into integer form by using the method hashCode(). ![]() Hashing: HashMap in Java works on the principle of hashing - an algorithm to map object data to some representative integer values.
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