◆ Study Hub By J
STUDY GUIDES

Study smarter, not longer.

Free, practical guides written by a university student for university students: how GPA really works, how to prepare for specific exams, and study methods that actually raise your marks.

Each guide is written from real first-hand experience and links straight to the free quizzes, mock exams and tools on Study Hub, so you can put it into practice right away.

All guides

GPA & RESULTSHow to Calculate Your GPA and CGPA at SLIIT (with Worked Examples)Grade points, credits, a full worked example and the mistakes students make when working out GPA. EXAM PREP · IT1120IP (IT1120) Mid Exam: Topics, Question Types and a 2-Week Study PlanWhat Lessons 1–5 cover, how to handle MCQs and structured Java questions, and a two-week plan. FIRST YEARYear 1 Semester 1 IT at SLIIT: Modules, Study Routine and How to PrepareWhat IP, MC, FC and DCN cover, a weekly routine that works and how to handle mids, labs and finals. STUDY SKILLSHow to Use Mock Exams and Practice Quizzes EffectivelyActive recall, spaced practice, the mistake log and how to review a paper so marks actually go up. AI STUDY TOOLSHow to Summarise Lecture PDFs with AI (and Actually Learn from the Summary)What AI summaries are good and bad at, how to check them, and how to turn a summary into marks. STUDENT LIFEStudent Budgeting Made Simple (and How Study Hub Partner Discounts Work)A simple weekly budget, where student money really goes, and how to claim partner discounts. NETWORKS · DCNIP Addressing and Subnetting for Beginners (with Step-by-Step Examples)Masks, CIDR, network and broadcast addresses, usable hosts and worked examples you can follow. MATHS · NUMBER SYSTEMSNumber Systems Explained: Binary, Octal, Decimal and Hexadecimal ConversionsPlace values, every conversion method step by step, fractions and fast exam shortcuts. PROGRAMMING · OOPObject-Oriented Programming in Java: The Four Pillars Explained SimplyClasses, objects, encapsulation, inheritance, polymorphism and abstraction with short Java examples. ALGORITHMS · DSASorting Algorithms Explained: Bubble, Selection, Insertion, Merge and Quick SortHow each algorithm works, step-by-step traces, Big-O comparison and when to use which. MATHS · DISCRETEPropositional Logic and Proof by Induction: A Step-by-Step GuideConnectives, truth tables, De Morgan's laws and a fill-in-the-steps template for induction proofs. SOFTWARE ENGINEERINGAgile and Scrum Explained for Software Engineering StudentsAgile values, Scrum roles, events and artifacts, user stories and Waterfall vs Agile. DATABASES · SQLSQL Joins Explained with Examples: INNER, LEFT, RIGHT and FULLINNER, LEFT, RIGHT and FULL joins on real example tables, plus how to find unmatched rows.

About Study Hub By J

Study Hub By J is a non-profit study platform built by an IT undergraduate to help university students revise and prepare for exams. It organises lesson-wise quizzes, mock exams, reference sheets and study tools by year, semester and module, and includes free tools such as a GPA calculator, a CGPA tracker, the StudySync planner and the Bobby AI lecture summariser.

Go to Study Hub →GPA Calculator

Study Hub By J: a non-profit student help platform, made for university students. 💙
Study Guides · Study Hub · GPA Calculator · Privacy & Policy · About the creator
Independent student project · not officially affiliated with any university · © 2026 Study Hub By J