Understanding Recursion with Simple Examples (Java, Python & JavaScript)

Recursion is one of the most important concepts in programming. Once you understand it clearly, many complex problems become much easier to solve. In this blog, we will learn recursion in a simple and practical way with examples in Python, Java, and JavaScript . What is Recursion? Recursion is a technique where a function calls itself to solve a problem. Instead of using loops, recursion breaks a problem into smaller subproblems and solves them step by step. Two Important Parts of Recursion Every recursive function must have: 1. Base Case (Stopping Condition) This is the condition where the function stops calling itself . Without this → program will run forever (infinite recursion ) 2. Recursive Call The function calls itself with a smaller or simpler input . Example 1: Print Numbers from 1 to 5 Flowchart: Python def display ( num ): if num > 5 : return print ( num ) display ( num + 1 ) display ( 1 ) Java class Main { static void display ( int num ) { if ( num > 5 ) return ; System . o