--- title: "#apna-college articles | Hashnode" description: "Explore 24 articles tagged #apna-college on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/apna-college" --- Tag # #apna-college 24 posts · 0 followers [ARCHANA GURUSAMY](https://hashnode.com/@archana-dev) · [Oct 20, 2025](https://hashnode.com/posts/simple-guide-to-finding-array-min-and-max-values/68f66842aed8864c4305bc0d) ### [Simple Guide to Finding Array Min and Max Values](https://archana-code-diary.hashnode.dev/simple-guide-to-finding-array-min-and-max-values?utm_source=hashnode&utm_medium=feed) Efficiently determine min and max in arrays with this technique. 2 min read · [archana-code-diary.hashnode.dev](https://archana-code-diary.hashnode.dev/simple-guide-to-finding-array-min-and-max-values?utm_source=hashnode&utm_medium=feed) [Pratip Sahoo](https://hashnode.com/@Pratip2002) · [Sep 22, 2025](https://hashnode.com/posts/your-complete-guide-to-sql-from-basics-to-advanced-queries-with-mysql/68d0f0287999e7ecc7b81a22) ### [Your Complete Guide to SQL: From Basics to Advanced Queries with MySQL 🚀](https://intelligenceunbound.hashnode.dev/your-complete-guide-to-sql-from-basics-to-advanced-queries-with-mysql?utm_source=hashnode&utm_medium=feed) If you're looking to dive into the world of data, SQL is the first language you should learn. It's the universal language for managing data in relational databases, and it's a skill every developer needs. This article provides a comprehensive guide t... 5 min read · [intelligenceunbound.hashnode.dev](https://intelligenceunbound.hashnode.dev/your-complete-guide-to-sql-from-basics-to-advanced-queries-with-mysql?utm_source=hashnode&utm_medium=feed) [Nandini Bajaj](https://hashnode.com/@nandini1221) · [Aug 1, 2025](https://hashnode.com/posts/heap-in-java/688cb1591060aabe371119ec) ### [Heap in JAVA](https://blog-codewithnandini.hashnode.dev/heap-in-java?utm_source=hashnode&utm_medium=feed) Learn about the Heap as a data structure and Heap memory in Java. Complete guide with examples, code, diagrams, and JVM memory insights. 6 min read · [blog-codewithnandini.hashnode.dev](https://blog-codewithnandini.hashnode.dev/heap-in-java?utm_source=hashnode&utm_medium=feed) [Rohit Gawande](https://hashnode.com/@rohit253) · [Apr 5, 2025](https://hashnode.com/posts/chapter-1-my-journey-in-web-development-html-level-1-part-a/67f0cb54983b56f81373df03) ### [Chapter 1: My Journey in Web Development - HTML Level 1 (Part A)](https://rohitgawande.dev/chapter-1-my-journey-in-web-development-html-level-1-part-a?utm_source=hashnode&utm_medium=feed) Learn HTML fundamentals, structure, and differences from CSS/JavaScript. Begin creating webpages now! 18 min read · [rohitgawande.dev](https://rohitgawande.dev/chapter-1-my-journey-in-web-development-html-level-1-part-a?utm_source=hashnode&utm_medium=feed) [Vrushabh Jadkar](https://hashnode.com/@VEHEMENT) · [Jan 27, 2025](https://hashnode.com/posts/day-7-of-7-day-sql-challenge-mastering-sql-subqueries-the-final-boss-level/67ffed29d2ee19c250c28156) ### [🌟 Day 7 of 7-Day SQL challenge: Mastering SQL Subqueries: The Final Boss Level!](https://vehement2003.hashnode.dev/day-7-of-7-day-sql-challenge-mastering-sql-subqueries-the-final-boss-level?utm_source=hashnode&utm_medium=feed) 🔍 Let’s Go Deeper Into the SQL World! Hey future data wizards! 🧙‍♂️ You've made it to Day 7 of the SQL Learning Challenge! That’s a HUGE milestone! Today we dive into a slightly deeper but super exciting concept: Subqueries. 🧠 What is a Subquery? ... 4 min read · [vehement2003.hashnode.dev](https://vehement2003.hashnode.dev/day-7-of-7-day-sql-challenge-mastering-sql-subqueries-the-final-boss-level?utm_source=hashnode&utm_medium=feed) [Rohit Gawande](https://hashnode.com/@rohit253) · [Nov 21, 2024](https://hashnode.com/posts/system-design-series-chapter-2-why-do-we-need-system-design/673f18e696a4b02deed6f63a) ### [System Design Series: Chapter 2 - Why Do We Need System Design?](https://rohitgawande.dev/system-design-series-chapter-2-why-do-we-need-system-design?utm_source=hashnode&utm_medium=feed) System design is crucial for transforming complex needs into efficient, scalable solutions, using real-world application examples 10 min read · [rohitgawande.dev](https://rohitgawande.dev/system-design-series-chapter-2-why-do-we-need-system-design?utm_source=hashnode&utm_medium=feed) [Rohit Gawande](https://hashnode.com/@rohit253) · [Nov 17, 2024](https://hashnode.com/posts/chapter-1understanding-object-oriented-programming-oop-the-foundation-of-system-design/6739d18b7e20f9d8342fb9bf) ### [Chapter 1:Understanding Object-Oriented Programming (OOP): The Foundation of System Design](https://rohitgawande.dev/chapter-1understanding-object-oriented-programming-oop-the-foundation-of-system-design?utm_source=hashnode&utm_medium=feed) Learn OOP essentials: classes, inheritance, and polymorphism for system design, with examples 16 min read · [rohitgawande.dev](https://rohitgawande.dev/chapter-1understanding-object-oriented-programming-oop-the-foundation-of-system-design?utm_source=hashnode&utm_medium=feed) [Nikhil Ramteke](https://hashnode.com/@nr234) · [Nov 17, 2024](https://hashnode.com/posts/chapter-3-faang-style-string-problems-interview-prep-for-top-tech-companies/6739da24fe92298867b7ab3e) ### [Chapter 3: FAANG-Style String Problems: Interview Prep for Top Tech Companies](https://git-command.hashnode.dev/chapter-3-faang-style-string-problems-interview-prep-for-top-tech-companies?utm_source=hashnode&utm_medium=feed) Welcome to Chapter 3 of our DSA in Java journey! Today, we’re diving into strings—one of the most crucial topics for acing coding interviews. Mastering string problems is essential for success in technical interviews, as they test a wide range of ski... 13 min read · [git-command.hashnode.dev](https://git-command.hashnode.dev/chapter-3-faang-style-string-problems-interview-prep-for-top-tech-companies?utm_source=hashnode&utm_medium=feed) [Nikhil Ramteke](https://hashnode.com/@nr234) · [Nov 12, 2024](https://hashnode.com/posts/chapter-1-embarking-on-your-dsa-journey-with-java/673309460e5bb03aa4f6bc4a) ### [Chapter 1: Embarking on Your DSA Journey with Java](https://git-command.hashnode.dev/chapter-1-embarking-on-your-dsa-journey-with-java?utm_source=hashnode&utm_medium=feed) Welcome to the first chapter of our deep dive into Data Structures and Algorithms (DSA) using Java. In this series, we'll cover a wide range of fundamental and advanced DSA concepts, essential for acing technical interviews at top tech companies like... 2 min read · [git-command.hashnode.dev](https://git-command.hashnode.dev/chapter-1-embarking-on-your-dsa-journey-with-java?utm_source=hashnode&utm_medium=feed) [Rohit Gawande](https://hashnode.com/@rohit253) · [Nov 9, 2024](https://hashnode.com/posts/chapter-46-dynamic-programming-part-6-dsa-series/672f51eea5ff63afab0f13a2) ### [Chapter 46: Dynamic Programming (Part 6) - DSA Series](https://rohitgawande.dev/chapter-46-dynamic-programming-part-6-dsa-series?utm_source=hashnode&utm_medium=feed) Welcome to Chapter 46 of my Data Structures and Algorithms (DSA) Series! In this chapter, we dive into essential dynamic programming concepts focused on matrix operations and complex problem-solving techniques. Dynamic programming is all about breaki... 6 min read · [rohitgawande.dev](https://rohitgawande.dev/chapter-46-dynamic-programming-part-6-dsa-series?utm_source=hashnode&utm_medium=feed)