Difference between ArrayList and HashTable?

There are following difference between ArrayList and Hashtable :

Array List	Hash Table
Array List is one type of generic List	Hash Table is a map.
In Array list we can only add items to the list.	In Hashtable we can add data with the key.
we Can Add any datatype value, Every item in Arraylist is as object.	Retrieving by key in Hashtable is faster than retrieving in Arraylist.
Index only in  Numeric.	Index can be string also.
Data in Arraylist is stored in as only the value.	Data in Hashtable is stored in the key-value pair.
Slow when come to search	Fast when searching.
It is store only value.	It is store data as name, value pair
If you want to access value from Arraylist, you need to pass index.	If you want to access value from Hashtable, you need to pass name.
Arraylist you can store only similar type of data.	In a Hashtable you can store different type of data like int, string etc