Can an array be considered an appropriate data structure for handling collisions in hash tables?

An array by itself is not an appropriate data structure for handling collisions in hash tables, but it is often used as a basis for storing elements. Collisions occur when two keys hash to the same position in the array.

Special methods are used to handle collisions:

• Chaining: each cell of the array stores a linked list or another structure, where all elements with the same hash are added.
• Open addressing: upon collision, the next free cell in the array is sought according to a certain rule (linear probing, quadratic, double hashing).

Thus, the array is the foundation for storage, but additional structures or algorithms are needed to handle collisions.

Example of chaining in Java:

class HashNode {
    String key;
    String value;
    HashNode next;
    // constructor and methods
}

HashNode[] table = new HashNode[capacity];
// upon collision, add a new node to the linked list in the array cell