{"id":20228,"date":"2026-04-06T10:15:17","date_gmt":"2026-04-06T04:45:17","guid":{"rendered":"https:\/\/www.placementpreparation.io\/blog\/?p=20228"},"modified":"2026-04-10T14:14:09","modified_gmt":"2026-04-10T08:44:09","slug":"strings-in-data-structure","status":"publish","type":"post","link":"https:\/\/www.placementpreparation.io\/blog\/strings-in-data-structure\/","title":{"rendered":"Strings in Data Structure"},"content":{"rendered":"

Strings are one of the most commonly used data structures in programming<\/a> because most real-world applications deal with text processing. From searching in Google to validating passwords and processing user input, strings are everywhere.<\/p>

Learning strings helps you understand character manipulation, pattern matching, and important interview problem-solving techniques. Many coding interview questions are directly based on string operations.<\/p>

In this guide, you will learn how strings work, their operations, coding examples, and why they are important in DSA.<\/p>

What is a String in Data Structure<\/h2>

A string is a sequence of characters stored in contiguous memory locations and usually terminated by a special character like null (\\0) in some languages like C.<\/p>

Example:<\/strong><\/p>

\n

char str[] = “HELLO”;<\/p>\n

Here:<\/p>\n

H is at index 0
\nE is at index 1
\nO is at index 4<\/p>\n<\/div><\/div>

Key characteristics:<\/strong><\/p>