Java - HashMap confusion about collision handling and the get() method

Question

I\'m using a HashMap and I haven\'t been able to get a straight answer on how the get() method works in the case of collisions.

Let\'s say

Answer 1

Let's say n > 1 objects get placed in the same key. Are they stored in a linked list? Are they overwritten so that only the last object placed in that key exists there anymore? Are they using some other collision method?

There could be single instance for the same key so the last one overrides the prior one

Map map = new HashMap();
map.put("a", 1);
map.put("a", 2);// it overrides 1 and puts 2 there

chaining comes where there turns the same hash for different keys

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See

• Java papers hash table working