Difference between hashtable and dictionary in c# | Dictionary VS Hashtable c#

Difference between hashtable and dictionary in c# | Dictionary VS Hashtable c# | CSharp-Collections-Hashtable | c# interview questions and answers | .net interview questions and answers | c# interview questions

Dictionary
1. Dictionary is a generic type
2. Dictionary class is a strong type Hence, you must specify the data types for key and value.
3. There is no need for boxing/unboxing.
4. When you try to access a non-existing key dictionary, it gives a runtime error.
5. Dictionary maintains an order of the stored values.
There is no need for boxing/unboxing, so it is faster than Hashtable.

Hashtable
1. Hashtable is a non-generic type.
2. Hashtable is a weakly typed data structure, so you can add keys and values of any object type.
3. Values need to have boxing/unboxing.
4. When you try to access the non-existing key Hashtable, it gives null values.
5. Hashtable never maintains an order of the stored values.
Hashtable needs boxing/unboxing, so it is slower than Dictionary.

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