The data structure is a programmatic way of storing data and it can be used efficiently. Almost all enterprise applications use different types of data structures in one way or another. This guide will help you better understand the complexity of enterprise-grade applications and the need for algorithms and data structures to understand data structures.

Java programmers use data creation models to store and organize data, and we use algorithms to process data in these structural models. The more you understand data creation and algorithms and how they work together, the more efficient your Java application will be.

Reasons behind to learn data structure and algorithm:

Because applications become complex and contain large amounts of data, modern applications face three common problems.

Data Search - Consider an inventory of 1 million (106) items in a store. If your application needs to search for items, it will be slower because you have to search for one of a million (106) items at a time. As the number of data increases, searches become slower.

Processor speed. The processor speed, although very high, is limited if the data volume increases to a billion records.

Multiple queries. Since thousands of users can search for data on a web server at the same time, even a fast server fails when searching for data.

Data Structures online classes come to the rescue to solve the above problems. You can organize your data into data structures so that not all items are searched, so you can find the data you need almost instantly.

Classification of data structures

There are different types of data structures, from a single variable to an array or linked list of objects that contain multiple fields. All data structures can be classified as primitives or aggregates and some as containers.


In its simplest form, data structures store individual data items; for example, a variable that stores a boolean value, or a variable that stores an integer. I call these data structures primitives.


Many data structures can store multiple data items. For example, an array can store multiple data items in its various slots, and an object can store multiple data items through its fields. I call these data structures aggregates.


Everything in which data items are stored and retrieved can be considered a data structure. Examples include the data structures derived from the ADT employees described earlier, vehicles, arrays, and stocks.

Many data structures are designed to describe multiple entities. Instances of the Employee class are data structures that exist, for example, to describe multiple employees. In contrast, some data structures exist as generic containers for storing other data structures. For example, an array can store a reference to a primitive value or object. I call it the second category of data structure containers.

Data structure and algorithm applications

An algorithm is a step-by-step procedure that defines a set of instructions that must be executed in a specific order to get the desired result. Algorithms are usually written independently of the underlying language. That is, the System design training online algorithm can be implemented in several programming languages.

In terms of data structure, the following are some important categories of algorithms:

  • Search - an algorithm for finding an element in a data structure.

  • Sorting is an algorithm for sorting items in a specific order.

  • Insert - Algorithm for inserting an element into a data structure.

  • An update is an algorithm for updating an existing item in the data structure.

  • Delete - an algorithm for removing an existing element from the data structure.

The following computer problems can be solved by using the data structures Design Pattern course online -

  • Fibonacci number series

  • Backpack problem

  • Tower of Hanoi

  • The shortest route for all couples from Floyd-Warshall

  • The shortest route from Dijkstra

  • Project planning