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.

If you’ve got an interview coming up and want to brush up on your knowledge, or if you’ve ever struggled with solving coding problems using recursion, you'll find this course helpful.
 
You’ll start with the basics of what recursion is and why it’s important before diving into what it looks like in practice. You’ll see how recursion can help you solve a variety of different math, string, and data structure problems by using interactive code playgrounds that you can execute directly in your browser. You’ll have access to detailed explanations and visualizations for each problem to help you along the way.  
 
By the time you’re done, you’ll be able to use what you’ve learned to solve complex real-world problems and even advance more easily through your interviews at top tech companies.

Recursion for Coding Interviews in Java

# What does reversing a string mean?

**Reversing** means to take the string and flip it, inverting its order

The illustration below shows you exactly what that means!

>**Note**: Keep in mind that a string can be one word or multiple words.

# Implementing the code

The code snippet below shows how to reverse a string using recursion! 

First, let's take a look at the code, and then we can move on to its explanation. 

Try the code by changing the value of `string1` to see how it works with other strings!

This lesson will teach you how to reverse a string using recursion.

Fundamentals of Recursion

Iteration to Recursion

Recursion with Numbers

Recursion with Strings

Recursion with Arrays

Recursion with Data Structures

Reversing a String

What does reversing a string mean?

Implementing the code