96 docs tagged with "basics"

Learn the syntactic anatomy of HTML elements, tags, and attributes with student-friendly analogies, diagrams, and exam-focused tips. Complete.

Your complete guide to starting with Python: learn what Python is, install it on any OS, write your first program, run scripts, and choose the right editor.

Write your very first Python program. Learn the print() function, syntax rules, and how to execute scripts from the terminal. Complete student exam study guide.

Master block and inline layout display properties in HTML. Learn the differences in spacing, dimensions, margins, and nesting rules. Complete.

Learn the four essential components of an HTML skeleton: DOCTYPE, html, head, and body. Aligned with GSEB, CBSE, and ICSE syllabus. Complete.

Master HTML grouping containers: div (block) and span (inline). Learn how to style section groupings with class and ID selectors. Free student exam study guide.

Master HTML text formatting tags: strong, em, b, i, sub, sup, mark, del, and ins. Learn the differences with examples and exam tips. Complete.

HTML basics from scratch — what HTML is, how browsers render tags, document structure, headings, paragraphs, links, and essential elements for web beginners.

Master HTML head elements: title, charset, viewport, and SEO meta descriptions. Learn how to configure your page for search engines. Complete.

Master HTML tags, elements, and basic layouts. Access 8 comprehensive tutorials on anatomy, nesting, skeleton structures, and layouts. Complete.

Learn what JavaScript is and how it powers modern websites. Understand its relationship with HTML and CSS using the Human Body scenario. Complete.

Learn the foundational concepts of SQL (Structured Query Language). Understand relational databases, SQL syntax. Practical code guide & notes for student exams.

Master Java Aggregation with real-world examples: Schools, Libraries, and Teams. Learn why parts can exist independently of the whole. Complete.

Master Java Arrays. Learn about indexing, length, multi-dimensional arrays, and loop iteration using the Hotel Rooms scenario. Free student exam study guide.

Learn the difference between Class Attributes (Variables) and Class Methods (Functions) in Java. Master the Dot Operator and Static vs Public methods.

Master Java Booleans. Learn about true/false values, boolean expressions, and how Java handles logic differently from C++. Free practical study guide for exams.

Master Java Break and Continue statements. Learn how to stop loops or skip iterations using the Grocery Trip scenario. Master loop efficiency and control.

Master Java Classes and Objects. Learn how to create blueprints and instantiate them using the Smartphone Factory scenario. Complete student exam study guide.

A student-friendly introduction to the Java Collections Framework. Learn to choose the right data structure using the Kitchen Cabinet scenario.

Learn how to use Single-line, Multi-line, and JavaDoc comments in Java. Master code documentation techniques using the Inventory Labeling scenario.

Master Java Constructors and the 'this' keyword. Learn how to initialize objects using the Custom Pizza Order scenario. Structured study material & code notes.

Master Java Data Types. Learn the difference between 8 primitive types and reference types using the Labeled Box scenario. Free practical study guide for exams.

Learn the difference between Errors and Exceptions in Java. Master Checked vs Unchecked exceptions using the Car Dashboard scenario. Complete.

Master Java File Handling. Learn how to manage files on your hard drive using the File Cabinet scenario. Step-by-step practical programming guide with examples.

Master Java If-Else statements. Learn about if, else, else-if, and the ternary operator using the ATM Withdrawal scenario. Master the backbone of program logic.

Master Java Iterators and the Collections class. Learn how to safely loop through data and use powerful algorithms like sort(), reverse(), and shuffle().

Master the Java List interface. Compare ArrayList and LinkedList performance using the Train vs Resizable Bench scenario. Free student study notes & exam guide.

Master Java Loops. Learn how to automate repetition using For, While, and Do-While loops with the School Bell and Laundry scenarios. Complete.

Master the Java Map interface. Learn to store data in key-value pairs using the Digital Assistant scenario. Compare HashMap and TreeMap. Complete.

Master the Java Math class. Learn how to use static methods like sqrt(), max(), and abs(), and master generating random numbers using the Swiss Army Knife scena

Master Java Method Overloading. Learn how to create multiple methods with the same name but different signatures using the Universal Power Adapter scenario.

Master Java Methods. Learn about method declaration, parameters, return values, and the static keyword using the Smoothie Maker scenario. Complete.

Master Java Access Modifiers (Public, Private, Protected) and Encapsulation using the Smartphone Battery scenario. Free student notes & practical code guide.

Master the 4 pillars of Java Object-Oriented Programming (OOP). Learn Abstraction, Encapsulation, Inheritance, and Polymorphism with the LEGO scenario.

Master Java Operators. Learn Arithmetic (+, -, *, /), Comparison (==, !=, >), and Logical (&&, ||, !) operators using the Smartphone Calculator scenario.

Learn how to organize your code using Java Packages and use pre-written classes from the Java API. Master import keywords and package naming conventions.

Learn how to initialize objects using default and parameterized constructors in Java. Comprehensive step-by-step tutorial with code examples & notes.

Master Java Recursion and Variable Scope. Learn how methods can call themselves using the Matryoshka Doll scenario. Master base cases and the call stack.

Master the Java Set interface. Compare HashSet and TreeSet for uniqueness and sorting using the Pile vs Shelf scenario. Structured study material & code notes.

Master Java Strings. Learn about String immutability, the String Pool, and essential methods like length(), indexOf(). Structured study material & code notes.

Master Java Switch statements. Learn about case, break, and default using the Vending Machine scenario. Master decision-making for fixed choices.

Master the fundamental rules of Java syntax. Learn the main method, case sensitivity, semicolons, and the difference between print() and println().

Master Java Exception Handling. Learn about try-catch-finally blocks and how to handle multiple exceptions using the Safety Net scenario. Complete.

Master Java Type Casting. Learn about Automatic Widening and Manual Narrowing using the Bucket and Glass scenario. Master safe and dangerous type conversions.

Learn how to declare and initialize variables in Java. Master camelCase naming conventions, the final keyword. Complete practical study guide for student exams.

Explore the 8 data types in JavaScript, including primitives like Strings and Numbers, and non-primitives like Objects. Structured study material & code notes.

Learn how to make websites interactive with JavaScript Events. Master click events, hover states, and event listeners using the Alarm Clock scenario.

Master JavaScript functions. Learn declaration, parameters, and return values using the Coffee Recipe scenario. Understand local vs global scope.

Learn how JavaScript handles numbers, understand floating-point precision, and use the built-in Math object for complex calculations. Complete.

Learn how to use Objects in JavaScript to store complex data. Master dot notation, bracket notation, and the 'this' keyword with the Car scenario.

Learn about JavaScript operators, including the important distinction between loose and strict equality. Step-by-step practical programming guide with examples.

Learn the four main ways to display output in JavaScript, including innerHTML, console.log, and window.alert. Complete practical study guide for student exams.

Master JavaScript strings, learn how to extract substrings, replace content, and use modern template literals. Complete practical study guide for student exams.

Master the basic syntax rules of JavaScript, including variables, operators, and how to properly comment your code. Free student notes & practical code guide.

Learn how to store data in JavaScript. Master let and const, and learn why var is deprecated using the Post-it Note scenario. Complete student exam study guide.

MySQL tutorial — the most popular open-source relational database. Covers setup, DDL, DML, SELECT queries, joins, and stored procedures with examples.

Master logical operators in Oracle SQL. Learn how to combine multiple filters in a WHERE clause using AND and OR with operator precedence rules.

Master the BETWEEN operator in Oracle. Learn how to filter numbers and dates within inclusive ranges for efficient data extraction. Complete.

Master the DISTINCT keyword in Oracle to eliminate duplicate data from your queries. Understand how it applies to single and multiple columns.

Learn how to use the FETCH FIRST and OFFSET clauses in Oracle 12c+. Master modern pagination techniques without using ROWNUM. Complete student exam study guide.

Learn how to use GROUP BY and HAVING in Oracle SQL. Master categorical reporting and filtering aggregated results like a professional. Complete.

Learn how to use the IN operator in Oracle SQL to filter data against a list of values or subquery results. Simplify multiple OR conditions.

Master the Oracle INNER JOIN. Learn how to combine related tables based on common columns using the ON clause. Includes performance tips. Complete.

Master the concept of NULL in Oracle. Learn why you cannot use = with NULL and how to correctly filter missing or unknown values. Free student exam study guide.

Learn pattern matching in Oracle using the LIKE operator. Master the % and _ wildcards to find partial strings in your database. Free student exam study guide.

Learn how to sort query results in Oracle using ORDER BY. Master ASC, DESC, and NULLS FIRST/LAST keywords for professional data presentation.

Master the Oracle SELECT statement. Learn how to retrieve data, use expressions, and perform arithmetic in Oracle Database. Complete student exam study guide.

Learn how to filter data in Oracle using the WHERE clause. Master comparison operators like =, <>, >, < to extract exact data subsets. Complete.

Side-by-side comparison of Python, Java, C, and SQL (PL/SQL) logic. Understand how syntax changes while logic stays the same. Complete student exam study guide.

Master Python's arithmetic operators, including standard math and Python-specific ones like Floor Division and Exponentiation. Learn BODMAS in coding.

Master Python Booleans. Understand how expressions evaluate to True or False and learn the rules of Truthy and Falsy values in coding. Complete.

Master loop control in Python. Learn when to jump out of a loop (break), skip an item (continue), or use a placeholder (pass). Free student exam study guide.

A comprehensive reference for Python's built-in functions. Learn how to use print, len, range, and more with the Tool Belt scenario. Complete.

Master Python Dictionaries. Learn how to store data in key-value pairs, access values by names, and use common dict methods like items(), keys(), and values().

Explore the core features of Python like dynamic typing and portability. Learn how Python is used in Web Dev, AI, Data Science, and Automation.

Learn how to make decisions in Python using If, Elif, and Else. Includes the Traffic Light scenario and flowcharts for logical branching. Complete.

Step-by-step guide to installing Python 3 and setting up your first IDE. Includes tips for Windows PATH configuration and Linux setup. Complete.

Learn about Python's reserved keywords and various types of literals (numeric, string, boolean). Essential reference for board exams and interviews.

Learn how to use Python Lists to store and manage collections of data. Master indexing, slicing, and common list methods like append, pop, and sort.

A definitive guide to choosing the right loop and control statement in Python. Compare efficiency and use cases for For, While, Break, and Continue.

Master Python's numeric types (int, float, complex) and learn how to convert between them using explicit and implicit type casting. Complete.

Master Python Sets. Learn about unordered collections, removing duplicates, and mathematical operations like Union and Intersection with Venn diagrams.

Learn to manipulate text in Python. Master string slicing, formatting with f-strings, and essential methods like upper, lower, and replace. Complete.

Master the fundamental rules of Python syntax, including the mandatory indentation rule and how to use comments effectively for clean code. Complete.

Learn about Python Tuples and why they are useful. Understand immutability, tuple packing/unpacking, and when to use Tuples instead of Lists.

Learn how to store and organize data using Python variables. Includes a deep dive into Numeric, Sequence, Mapping, and Set data types. Complete.

Learn Data Definition Language (DDL) in Oracle. Master how to create, modify, and delete table structures using the Architect's Blueprint scenario.

Master Data Manipulation Language (DML) in Oracle. Learn how to add, change, and remove data within your tables using the Warehouse Manager scenario.

Learn how to filter data in SQL using the WHERE clause. Master AND, OR, LIKE, and BETWEEN operators with the Police Investigation scenario. Complete.

Master the SQL INNER JOIN. Learn how to combine rows from two or more tables based on a related column. Includes visual diagrams and syntax.

Master the fundamental SQL SELECT and FROM clauses. Learn how to extract data from tables using the Digital Filing Cabinet scenario. Complete.

Master HTML headings (h1-h6), paragraphs, line breaks, horizontal rules, and preformatted text. Detailed guides for GSEB, CBSE students. Complete.

Master the Document Object Model (DOM). Learn how JavaScript interacts with HTML using the Christmas Tree scenario. Includes querySelector and getElementById.

Master empty (void) tags and element nesting rules in HTML with Russian nesting doll analogies, code blocks, and board exam tips. Free student exam study guide.

A student-friendly introduction to Java. Learn the WORA principle and the difference between JDK, JRE, and JVM using the Coffee Machine scenario.

Discover why Python is the world's most popular language. Learn its history, the WORA principle, and why it is perfect for students and professionals.