Learn how recursion can help you solve a variety of different math, string, and data structure problems by using interactive code playgrounds.

Java for Programmers

Recursion

## Problem Statement

For this challenge, you will be given an array and its length, and you must print out all the permutations of the **array**.

A permutation is an arrangement of all or part of a set of objects. For example,- the arrangement of words ‘cat’ and ‘act’ represent two distinct permutations (or arrangements) of a similar three letter word.

The illustration below explains the concept.

# Problem Statement

For this challenge, you will be given an array and its length, and you must print out all the permutations of the **array**.

A permutation is an arrangement of all or part of a set of objects. For example,- the arrangement of words ‘cat’ and ‘act’ represent two distinct permutations (or arrangements) of a similar three letter word.

The illustration below explains the concept.

In this lesson, you must implement the code to find and print all permutations of a given string using recursion.

Fundamentals of Recursion

Iteration to Recursion

Recursion with Numbers

Recursion with Strings

Recursion with Arrays

Recursion with Data Structures

Challenge 2: Print all Permutations of a String

Problem Statement