making hash table for music library in msvc2017
JukeboxMusical
(A musical playlist that is based around a series of well-known popular songs)
1: First we need to make a Music class with (You can add more/ remove any)
- ID/URL
- Music Title
- Album
- Artist
- Band
- Genre (Rock,Pop,Fusion etc.)
- Description
1.We will have a list of music in a file (Minmum 25).
2.At the beginning have to read the file to makeMusic-obj for each entry in the file
3.After each Music object created, need to enter it to the Hash Table, Bst and stack using their address.
4.Hash-Table :
key : ID/URL
value : address of the Music-obj created
5. BST1 :
key : ID/URL
value : address of the Music-obj created.
5. BST2 :
key : Music Title
value : address of the Music-obj created.
We can add more BSTs with different keys if needed.
6.Stack:
We can use our previous one.
7.For keeping track of our object number we can use an array count.
Operations:
- Add new data : Get details from user. Add it in the Hash-Table and
- Delete Data : Delete from Hash-Table and BSTs. push() the entry in stack ( for undoing a delete )
- Find and display one data record using the primary key : (A) Find by ID/URL : Take input ID/URL from user and find out from Hash-Table. (B) Find by Title : Take input Title from user and find out from Hash-Table
- List data in hash table sequence : Print all data from Hash-Table in sequence.
- List data in key sequence (sorted) : (A) sort by ID/URL : inorder traversal of the BST1. (B) sort by Title : inorder traversal of BST2.
- Print indented tree : Indented printing of the tree.
- Write back to file : Write back all data in hash-tabel sequence to file.
- Undo delete : Pop() one element from the stack and insert it back to Hash-Table and BSTs.
- Efficiency :
a. Load Factor
b. Number of Collisions
c. Longest Collision Path
- Recommending the user a few songs based on the genre of songs (may be) : TODO
- Quit : Write back all data in hash-tabel sequence to file.
If we want to read realtime URL then we need to implement some Netwark programming. I don’t have any Idea about that domain.
BST is on the 22C_final_Project.zip
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