Java, C

What is ArrayList (Java)?

ArrayList class extends AbstractList and implements the List interface.

ArrayList is a re-sizable array. In other words, it handles the resizing automatically.

LinkedList class extends AbstractSequentialList and implements the List, Deque and Queue interfaces.

Hashmap extends AbstractMap to use a hash table.

HashMap is non-synchronized

HashMap allows one null key and multiple null values whereas Hashtable doesn’t allow any null key or value.

Last updated 6 years ago