how to store multiple values in one key in hash table

[PreethiGowri]

I want to cache data from database into a hashtable, to which i need a hashtable with multiple values to a common key, Now my question is how do i do this, how do i insert and retrieve data from the hashtable, how do i retrieve a particular value of a key?

[r035198x]

A Hashtable can store any object including ArrayLists as values.

[PreethiGowri]

I used LinkedHashMap like this

LinkedHashMap<String , ArrayList<String>> cache = new LinkedHashMap<>();