It & Software

Data Structures & Algorithms in Java

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About this course

This course is delivered through a series of LIVE sessions which covers the basics of Data Structures & Algorithms in Java, one of the most popular programming languages in the world.

In this course, you will start with the concepts of time complexity along with basic algorithms like recursion, searching and sorting. You will also explore various data structures like Arrays, Linked lists, Stacks & Queues, etc. Data structures and algorithms concepts are covered through hands-on coding exercises which ensures practical learning.

The instructor will also explore how to tackle common problems asked in coding interviews, which is a part of the interview processes in major companies.

Skills covered

  • Calculation of complexity in code
  • Common sorting algorithms
  • Recursion

Course Certificate

Get Data Structures & Algorithms in Java course completion certificate from Great learning which you can share in the Certifications section of your LinkedIn profile, on printed resumes, CVs, or other documents.

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Frequently Asked Questions

General Queries On This Free Course
What are data structures in Java?

Data Structures in Java means organising the data in memory. There are various ways by which one can organise the data in memory, one example is an array.


What are different data structures in Java?

Different data structures in Java are int, char, float, double, pointer, arrays, linked list, stacks, and queues.


What are the types of data structures?

Data structures can be characterised as Primitive, Non-Primitive, Linear, Non-Linear, Static, and Dynamic data structures.


Which data structure is best for Java?

The array is the best data structure for the Java programming language. It provides built-in support for the array in the language itself.


What are the 2 main types of data structures?

The two main types of data structures are Arrays and Linked Lists.


What is the Java algorithm?

An algorithm in Java is a step by step process that defines a set of instruction to be executed in a fixed order to achieve the desired output. Some of the common algorithms in Java are:

  • Sorting
  • Shuffling
  • Routine data manipulation
  • Searching 
  • Composition
  • Finding extreme values
Is Array List a data structure?

Yes, ArrayList is a data structure. While an Array is a fixed size data structure, ArrayList is not.


What is the fastest data structure?

Arrays are the fastest among other data structures. Under arrays, preferably the basic types, eg int, float, etc.


Which search algorithm is fastest?

The binary search algorithm is the fastest search algorithm across programming languages.


What is Data Structure?


The literal meaning of data structures is organising the data in memory. There are various ways by which one can organise the data in memory, one example is an array. Array in java is a collection of memory elements where data is sequentially stored. In other words, array stores elements in a continuous manner. There are other many other ways to organise data in memory, which are:

  • Primitive data structure
  • Non-primitive data structure


Primitive Data Structure

The primitive data structures are primitive data types that include int, char, float, double, and pointer. These primitive data structures can hold a single value.


Non-Primitive Data Structure

The non-primitive data structure is divided into two types:

  • Linear data structure
  • Non-linear data structure

The arrangement of data in a sequential manner is known as a linear data structure. The data structures used for this purpose are Arrays, Linked list, Stacks, and Queues. In these data structures, one element is connected to only one another element in a linear form.


Data structures can also be classified as:

  • Static data structure: The size of static data structures is allocated at the time of compiling and therefore, the maximum size is fixed. That is the reason it is called a static data structure. 
  • Dynamic data structure: The size of the dynamic data structures is allocated at the run time and therefore, the maximum size is flexible. That is the reason it is called a dynamic data structure.


Benefits of Data Structures

Data Structures possess various advantages for professionals in the field of java development. These benefits are:

  • Efficiency - Given the choice of the data structure for implementing a particular ADT is the right one, it makes the program efficient for time and space.
  • Reusability - Data Structures provide reusability as multiple programs can use the same data structures.
  • Abstraction - The data structure provides a level of abstraction where clients cannot see the internal working of data structure and hence do not have to worry about its implementation.


What is an Algorithm? 

Algorithms were historically used as mathematical computation tools that are deeply connected with computer science and data structures in particular. An algorithm is a sequence of instructions that are followed to accomplish a task in a specified time period. They have some values that are mentioned below:

  • Receive zero or more inputs
  • Produce one or more outputs
  • Consist of clear instructions, no ambiguity
  • Terminates after a finite number of steps

While programs might be algorithmic in nature, some programs would not terminate without external intervention. There are criteria for code sequences to qualify as algorithms. One example of a code sequence that qualifies as an algorithm is the one that prints a report. Another example is Euclid’s algorithm that calculates the mathematical greatest common divisor. Essentially, algorithms are a data structure’s basic operations.


About The Program


The course curriculum covers the basics of data structures and algorithms in Java. The algorithms covered in detail are recursion, searching, sorting and more. It will also cover the various data structures such as Arrays, Linked Lists, Stacks, and Queues. The concepts are taught with hands-on coding exercises and practical learning. 


The instructor will also help you prepare for coding interviews by helping you tackle common coding problems. These data structures and algorithms in java course will help you learn the concepts and prepare for employment in java coding domain. You will also be able to understand the nuances of the calculation of complexity in a code. 


Upon completion of the data structures and algorithms in Java free course, you will receive a certificate by Great Learning which you could update on your LinkedIn profile and resume.  


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