What are the categories and types of Data Structures?
- Data StructureProgramming Books
- June 19, 2022
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The many data structures in computer science are separated into two groups, as shown below. Each of the data structures described below will be thoroughly discussed in the following chapters.
- Linear data structure
- Non-linear data structure
Linear data structure:
The components of linear data structures arrange sequentially one after the other. Since the components arrange in a certain order, they are easy to perform.
However, as programme complexity increases owing to operational issues, linear data structures might not be the best option.
Java supports arrays, linked lists, stacks, queues, binary trees, binary search trees, heaps, hashes, and graphs as data structures.
These are data structures that store data components in chronological order.
An array is a collection of data elements arranged in a sequential order together with their corresponding indexes.
In addition to the data it holds, each member of a linked list connects to other elements.
A data structure called a stack only carries out operations in a specific order. First in, first-out (FILO) or last in, first out (LIFO) (First in Last Out).
Stack is comparable to Queue, however, FIFO is the only operational order support (First In First Out).
In a matrix, a two-dimensional data structure, the data element is identified by a pair of indices.
There are some types of linear data structures:
Array Data Structure:
Arrays, a basic data structure, allow direct access to elements through efficient indexing, ensuring fast retrieval with constant time complexity. Their integrated memory allocation enables fast iteration, supporting fast algorithms for sorting and searching. Acting as the basic building blocks in programming, arrays provide the flexibility, simplicity, and functionality needed to store and manipulate data in a variety of languages.
Queue Data Structure:
The FIFO principle, which asserts that the first item adds to the queue delete first, governs how the queue data structure functions, unlike a stack.
A continuous memory is used to arrange the memory elements in an array. The components of an array are all of the same types. The kinds of things that can store in arrays depend on the programming language.
Similar to a line at a ticket desk, the first person in line gives the ticket.
Stack Data Structure:
The LIFO concept uses to store the elements in a stack data structure. In other words, the last item in a stack takes out first.
Similar to a stack of plates, it works by removing the last plate from the stack first.
Linked List Data Structure:
A series of nodes connects the data elements in a linked list data structure. Each node also keeps a record of the data items and the address of the node after it.
Non-linear data structures:
Contrary to linear data structures, non-linear data structures do not include elements that are in a certain order. Rather, they arrange in a hierarchy, each element connects to one or more others.
Examples with Java include array, linked list, stack, queue, binary tree, binary search tree, heap, hashing, and graph.
These are data structures where the links between the data components are not sequential. Any pair or collection of data fragments can link together and retrieve without regard to their chronological sequence.
A binary tree is a type of data structure that has a root node and enables links between each data item and a maximum of two other data items.
In a heap data structure, the information in the parent node is either strictly more than, exactly equal to, or strictly less than the information in the child nodes.
A hash function uses to connect arrays in a data structure called a hash table. Instead of utilizing indexes, it uses keys to access values from a data element.
Graph and tree data structures are additional categories for non-linear data structures.
Graph Data Structure:
A graph makes up of nodes and vertices, some of which are connected.
A vertex is a name give to each node in a graph data structure, and each vertex joins to other vertices by edges.
The list set tuples and dictionaries are two types of data structures in Python.
Trees Data Structure:
Similar to a graph, a tree makes up of vertices and edges. In a tree data structure, there can only be one edge between any two vertices.
List sets, tuples, and dictionaries are some examples of Python.
Data structures with python:
These Python data structures offer greater flexibility in storing a variety of data types and faster processing in the Python environment. They are exclusive to the Python programming language.
The only difference between lists and arrays is that data components in lists can be of different data types. Both numerical and textual data can contain in a python list.
Because tuples are immutable, unlike lists, they can only be read, not updated. Tuples are comparable to lists in this regard.
What are the advantages of Data Structure:
Data structure improves the effectiveness of data storage in the storage device.
Accessing data from a storage device makes simpler by the use of a data structure.
Both little and large volumes of data may process effectively and efficiently thanks to data structures.
When executing tasks like data storage, retrieval, or processing, the adoption of an appropriate data structure may help a programmer save a lot of time or processing time.
Large volumes of data may easily handle with the aid of an appropriate data structure method.
The majority of well-designed data structures, such as arrays, stacks, queues, graphs, trees, and linked lists, contain carefully constructed and pre-planned methods for activities like storing, retrieving, changing, and deleting data. When employing these data structures, the programmer may rely on them.
Long-term, the utilization of data structures could only promote reusability.
There is no need for more research or development because these like an array, linked list, tree, graph, stack, and others have been completely testing and proven. You will need to conduct some research if you decide to create your data structure, but you will be solving an issue that is more complex than what these can provide.