Answer Posted / kautilya
arraylist is a collection of objects of same type. It
implements IList interface. it can grow dynamically, we can
add elements in it at runtime. it should be used when we
dont have information that how many elements will get
stored in it. it also has facility of searching and sorting.
Hashtable is storing data in key-value pair, where key
field will remain unique. Here elements can be searched
using key value. It is serializable.
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