Today I revised the functions of a python set i.e.
Set is an unordered Collection of unique items.
a = set()
a = {1,2,3,4}
a.add(5)
a.remove(3)
a.discard(3)//does not give an error
a[1] # Not Allowed
a[3] = 10 # Not Allowed
HashMap is a dictionary.
Hashmap map = new Hashmap<>();
map.put("Harsha",10)
map.get("Harsha")
map.containsKey("Harsha")
map.containsValue(10)
map.remove(10)
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