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Recursion for Coding Interviews in Java

Name: Recursion for Coding Interviews in Java
Price: 59 USD
Author: Educative

The ultimate guide to recursion interviews with strategies developed by FAANG engineers. Practice with real-world interview questions, detailed explanations, and visualizations to prep faster.

Also available in

C++

Java

JavaScript

Python

Also available in

Java

What's included

51 lessons across 6 modules
6 quizzes with instant feedback
on every lesson

Join 3.1 million developers at

What you'll learn

Identify base and recursive cases in Java methods to construct correct recursive solutions
Visualize recursion memory usage by tracing the call stack and variable state during execution
Decide when to use recursion vs iteration based on subproblems, nesting needs, and tradeoffs
Convert iterative Java code into recursion by translating loop logic into base cases and calls
Implement recursive solutions for number problems (power, sum to n, modulo, Fibonacci, GCD, prime, binary)
Implement recursive solutions for string problems (reverse, remove duplicates, merge, vowels, permutations, palindrome)
Apply recursion to arrays and data structures (array tasks, linked lists, BST insert, DFS, topological sort)

Learning Roadmap

51 Lessons6 Quizzes9 Challenges

Fundamentals of Recursion

Learn how to use recursion in Java for efficient problem-solving with practical examples.

What is Recursion?

Recursion and Memory Visualization

Direct vs. Indirect Recursion

When to use Recursion

What to Expect

Understanding a Recursive Problem

Advantages and Disadvantages

Iteration to Recursion

Solve challenges with transforming iterative code to recursive, comparing recursion vs. iteration.

Iteration

Recursion vs. Iteration

Changing Iterative Code to Recursive

Challenge 1: Length of a Linked List

Solution Review: Length of a Linked List

Quick Quiz on Iteration!

Recursion with Numbers

11 Lessons

Work your way through core recursion techniques on numbers: power, sum, modulo, Fibonacci, GCD, prime, and binary conversion.

Recursion with Strings

10 Lessons

Enhance your skills in solving string problems through recursive techniques and challenges.

Recursion with Arrays

9 Lessons

Take a closer look at solving array problems using recursion in Java, including challenges.

Recursion with Data Structures

8 Lessons

Follow recursion techniques to solve linked list problems, BST insertions, and graph traversals.

Certificate of Completion

Showcase your accomplishment by sharing your certificate of completion.

Developed by MAANG Engineers

Every Educative lesson is designed by a team of ex-MAANG software engineers and PhD computer science educators, and developed in consultation with developers and data scientists working at Meta, Google, and more. Our mission is to get you hands-on with the necessary skills to stay ahead in a constantly changing industry. No video, no fluff. Just interactive, project-based learning with personalized feedback that adapts to your goals and experience.

Trusted by 3.1 million developers working at companies

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Anthony Walker

@_webarchitect_

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ML Engineer

You guys are the gold standard of crash-courses... Narrow enough that it doesn't need years of study or a full blown book to get the gist, but broad enough that an afternoon of Googling doesn't cut it.

Software Developer

Carlos Matias La Borde

I spend my days and nights on Educative. It is indispensable. It is such a unique and reader-friendly site

Souvik Kundu

Front-end Developer

Your courses are simply awesome, the depth they go into and the breadth of coverage is so good that I don't have to refer to 10 different websites looking for interview topics and content.

Vinay Krishnaiah

Software Developer

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