What is the difference between Hash Table and Dictionary?

Answer»

HASHTABLE	Dictionary
Hashtable included in System.Collections namespace	Dictionary included in System.Collections.Generic namespace
It is weakly STRUCTURED data type in key values pair we can take any object type	In this strong in a data type that you must have to specify the data type of the key value pair
Returns null as a result if key which does not exist	Throws exception if we try to find with a key that not exists
It is generic type	It is non-generic type
It is faster since we don’t need to do boxing and UNBOXING in this	It is slower than hashtable and it involves an additional step of boxing and unboxing

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