Practical software courses

Practical software skills. A clear path from learning to completion.

WEB FOUNDATIONS

Make sense of web APIs

Follow a request from the browser to the backend and back.

18 minutes

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C++ FOUNDATIONS · MODULE 1 OF 20

C++ 01 — Introduction to C++

Follow a C++ program from source code to a running application.

39 minutes

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C++ FOUNDATIONS · MODULE 2 OF 20

C++ 02 — Program Structure and Basic Syntax

Read main, statements, blocks, comments, and header declarations.

39 minutes

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C++ FOUNDATIONS · MODULE 3 OF 20

C++ 03 — Variables, Data Types, and Constants

Choose suitable types and initialize values before using them.

39 minutes

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C++ FOUNDATIONS · MODULE 4 OF 20

C++ 04 — Operators and Expressions

Evaluate arithmetic, comparisons, and logical expressions correctly.

39 minutes

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C++ FOUNDATIONS · MODULE 5 OF 20

C++ 05 — Console Input and Output

Read keyboard input, check failures, and format console output.

39 minutes

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C++ FOUNDATIONS · MODULE 6 OF 20

C++ 06 — Conditional Statements

Choose program behavior with if, else, and switch.

39 minutes

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C++ FOUNDATIONS · MODULE 7 OF 20

C++ 07 — Loops

Repeat work with clear start, continuation, and stopping rules.

39 minutes

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C++ FOUNDATIONS · MODULE 8 OF 20

C++ 08 — Functions

Split work into functions with explicit inputs and return values.

39 minutes

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C++ FOUNDATIONS · MODULE 9 OF 20

C++ 09 — Scope and Lifetime

Separate where a name is visible from how long its object exists.

39 minutes

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C++ FOUNDATIONS · MODULE 10 OF 20

C++ 10 — Arrays and Vectors

Store sequences and access their elements within valid bounds.

39 minutes

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C++ FOUNDATIONS · MODULE 11 OF 20

C++ 11 — Strings and Text Processing

Store, combine, and read text including spaces.

39 minutes

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C++ FOUNDATIONS · MODULE 12 OF 20

C++ 12 — References and Pointers

Use indirect access while respecting object lifetime and validity.

39 minutes

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C++ FOUNDATIONS · MODULE 13 OF 20

C++ 13 — Classes, Objects, and Encapsulation

Create types that protect their data and expose useful behavior.

39 minutes

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C++ FOUNDATIONS · MODULE 14 OF 20

C++ 14 — Constructors and Destructors

Initialize objects deliberately and connect cleanup to their lifetime.

39 minutes

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C++ FOUNDATIONS · MODULE 15 OF 20

C++ 15 — Inheritance and Polymorphism

Use virtual functions through base references without slicing objects.

39 minutes

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C++ FOUNDATIONS · MODULE 16 OF 20

C++ 16 — Memory Management and Smart Pointers

Express resource ownership with RAII and smart pointers.

39 minutes

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C++ FOUNDATIONS · MODULE 17 OF 20

C++ 17 — Templates and Generic Programming

Describe reusable operations while respecting their type requirements.

39 minutes

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C++ FOUNDATIONS · MODULE 18 OF 20

C++ 18 — Standard Library Containers, Algorithms, and Lambdas

Combine containers, iterators, algorithms, and lambdas.

39 minutes

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C++ FOUNDATIONS · MODULE 19 OF 20

C++ 19 — File Handling and Exceptions

Check file operations and handle failures where recovery is possible.

39 minutes

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C++ FOUNDATIONS · MODULE 20 OF 20

C++ 20 — Debugging, Testing, and a Final Project

Build and test a small student-record application.

39 minutes

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DEVELOPER FOUNDATIONS

Git, one change at a time

Understand commits, branches, and a safer everyday workflow.

18 minutes

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JAVA FOUNDATIONS · MODULE 1 OF 20

Java 01 — Introduction to Java

Run your first Java program and understand the JDK and the JVM.

39 minutes

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JAVA FOUNDATIONS · MODULE 2 OF 20

Java 02 — Program Structure and Syntax

Read classes, methods, statements, and comments in a Java program.

39 minutes

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JAVA FOUNDATIONS · MODULE 3 OF 20

Java 03 — Variables and Primitive Types

Declare variables with the right types and convert between them.

39 minutes

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JAVA FOUNDATIONS · MODULE 4 OF 20

Java 04 — Operators and Expressions

Calculate correctly with Java’s arithmetic, comparison, and logical operators.

39 minutes

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JAVA FOUNDATIONS · MODULE 5 OF 20

Java 05 — Strings, Text, and Console Input

Work with strings and read and format console input and output.

39 minutes

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JAVA FOUNDATIONS · MODULE 6 OF 20

Java 06 — Conditional Statements

Choose between actions with if, else, and switch expressions.

39 minutes

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JAVA FOUNDATIONS · MODULE 7 OF 20

Java 07 — Loops

Repeat work with for, enhanced for, while, and do-while loops.

39 minutes

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JAVA FOUNDATIONS · MODULE 8 OF 20

Java 08 — Methods

Write reusable methods with parameters, return values, and overloads.

39 minutes

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JAVA FOUNDATIONS · MODULE 9 OF 20

Java 09 — Arrays

Store fixed-size sequences in arrays and process them with java.util.Arrays.

39 minutes

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JAVA FOUNDATIONS · MODULE 10 OF 20

Java 10 — Classes and Objects

Design classes with fields, constructors, and methods that protect their data.

39 minutes

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JAVA FOUNDATIONS · MODULE 11 OF 20

Java 11 — Records and Immutability

Model data concisely with records and keep values unchangeable.

39 minutes

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JAVA FOUNDATIONS · MODULE 12 OF 20

Java 12 — Inheritance and Polymorphism

Reuse and specialize behavior with subclasses and abstract classes.

39 minutes

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JAVA FOUNDATIONS · MODULE 13 OF 20

Java 13 — Interfaces and Sealed Types

Define contracts with interfaces and closed families with sealed types.

39 minutes

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JAVA FOUNDATIONS · MODULE 14 OF 20

Java 14 — Exceptions

Handle failures with try, catch, finally, and try-with-resources.

39 minutes

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JAVA FOUNDATIONS · MODULE 15 OF 20

Java 15 — Collections: Lists

Store growing sequences in lists and choose between mutable and immutable ones.

39 minutes

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JAVA FOUNDATIONS · MODULE 16 OF 20

Java 16 — Maps and Sets

Look up values by key and keep unique collections with maps and sets.

39 minutes

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JAVA FOUNDATIONS · MODULE 17 OF 20

Java 17 — Generics

Write type-safe classes and methods that work with many types.

39 minutes

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JAVA FOUNDATIONS · MODULE 18 OF 20

Java 18 — Lambdas and Streams

Pass behavior as values and process collections declaratively with streams.

39 minutes

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JAVA FOUNDATIONS · MODULE 19 OF 20

Java 19 — Files and I/O

Read and write files safely with java.nio.file.

39 minutes

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JAVA FOUNDATIONS · MODULE 20 OF 20

Java 20 — Testing, Debugging, and a Final Project

Test and debug Java code, then finish the student-records project.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 1 OF 20

JavaScript 01 — Introduction to JavaScript

Run JavaScript outside the browser with Node.js and understand what happens.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 2 OF 20

JavaScript 02 — Syntax, Statements, and Comments

Read how JavaScript statements, blocks, and names fit together.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 3 OF 20

JavaScript 03 — Variables and Types

Declare variables with let and const and recognize JavaScript’s value types.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 4 OF 20

JavaScript 04 — Operators and Type Coercion

Compare and combine values safely, without coercion surprises.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 5 OF 20

JavaScript 05 — Strings and Template Literals

Build, search, and format text with string methods and template literals.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 6 OF 20

JavaScript 06 — Conditional Statements

Choose between actions with if, else, switch, and the conditional operator.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 7 OF 20

JavaScript 07 — Loops

Repeat work with for, for...of, and while, and control loops with break and continue.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 8 OF 20

JavaScript 08 — Functions

Write reusable functions with parameters, defaults, and return values.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 9 OF 20

JavaScript 09 — Scope and Closures

Know where names are visible and use closures to keep private state.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 10 OF 20

JavaScript 10 — Arrays

Store ordered data in arrays, change them safely, and destructure them.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 11 OF 20

JavaScript 11 — Array Methods: map, filter, and reduce

Transform and summarize data with JavaScript’s array methods.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 12 OF 20

JavaScript 12 — Objects

Model data with objects, copy them safely, and iterate over their properties.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 13 OF 20

JavaScript 13 — Maps, Sets, and JSON

Choose the right collection and exchange data as JSON.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 14 OF 20

JavaScript 14 — Classes and Prototypes

Model behavior with classes, private fields, and inheritance.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 15 OF 20

JavaScript 15 — Error Handling

Throw meaningful errors and handle failures with try, catch, and finally.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 16 OF 20

JavaScript 16 — Asynchronous JavaScript and Promises

Understand the event loop and represent future results with promises.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 17 OF 20

JavaScript 17 — async and await

Write asynchronous code that reads like ordinary code with async and await.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 18 OF 20

JavaScript 18 — Modules and Packages

Split code into ES modules and use Node.js built-in and npm packages.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 19 OF 20

JavaScript 19 — Files and the Node.js Standard Library

Read and write files safely with fs/promises and work with JSON and CSV data.

39 minutes

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JAVASCRIPT FOUNDATIONS · MODULE 20 OF 20

JavaScript 20 — Testing, Debugging, and a Final Project

Test and debug your code, then finish the student-records project.

39 minutes

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PYTHON FOUNDATIONS · MODULE 1 OF 20

Python 01 — Introduction to Python

Run your first Python program and know what happens when you do.

39 minutes

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PYTHON FOUNDATIONS · MODULE 2 OF 20

Python 02 — Program Structure and Syntax

Read how statements, indentation, and comments shape a Python program.

39 minutes

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PYTHON FOUNDATIONS · MODULE 3 OF 20

Python 03 — Variables, Types, and Values

Store values, inspect their types, and convert between them safely.

39 minutes

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PYTHON FOUNDATIONS · MODULE 4 OF 20

Python 04 — Operators and Expressions

Calculate with Python’s arithmetic, comparison, and logical operators.

39 minutes

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PYTHON FOUNDATIONS · MODULE 5 OF 20

Python 05 — Input, Output, and f-strings

Read what a user types and present results clearly with f-strings.

39 minutes

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PYTHON FOUNDATIONS · MODULE 6 OF 20

Python 06 — Conditional Statements

Choose between actions with if, elif, else, and match.

39 minutes

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PYTHON FOUNDATIONS · MODULE 7 OF 20

Python 07 — Loops

Repeat work with for and while, and control loops with break and continue.

39 minutes

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PYTHON FOUNDATIONS · MODULE 8 OF 20

Python 08 — Functions

Package logic into reusable functions with clear parameters and return values.

39 minutes

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PYTHON FOUNDATIONS · MODULE 9 OF 20

Python 09 — Scope, Names, and Modules

Know where a name is visible and split a program into importable modules.

39 minutes

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PYTHON FOUNDATIONS · MODULE 10 OF 20

Python 10 — Lists and Tuples

Store sequences, slice them, and avoid aliasing surprises.

39 minutes

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PYTHON FOUNDATIONS · MODULE 11 OF 20

Python 11 — Strings and Text Processing

Clean, split, search, and assemble text with string methods.

39 minutes

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PYTHON FOUNDATIONS · MODULE 12 OF 20

Python 12 — Dictionaries and Sets

Look up values by key and work with unique collections.

39 minutes

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PYTHON FOUNDATIONS · MODULE 13 OF 20

Python 13 — Comprehensions, Iterators, and Generators

Transform collections concisely and process data lazily.

39 minutes

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PYTHON FOUNDATIONS · MODULE 14 OF 20

Python 14 — Classes and Objects

Model data and behavior together with classes and dataclasses.

39 minutes

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PYTHON FOUNDATIONS · MODULE 15 OF 20

Python 15 — Inheritance and Special Methods

Reuse behavior with inheritance and make objects work with Python’s built-in operations.

39 minutes

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PYTHON FOUNDATIONS · MODULE 16 OF 20

Python 16 — Errors and Exceptions

Handle failures deliberately with try, except, else, finally, and your own exceptions.

39 minutes

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PYTHON FOUNDATIONS · MODULE 17 OF 20

Python 17 — Files, Paths, and Context Managers

Read and write text, CSV, and JSON files safely with pathlib and with.

39 minutes

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PYTHON FOUNDATIONS · MODULE 18 OF 20

Python 18 — A Standard Library Tour

Solve everyday problems with collections, itertools, functools, and datetime.

39 minutes

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PYTHON FOUNDATIONS · MODULE 19 OF 20

Python 19 — Type Hints, Environments, and Packages

Document intent with type hints and manage dependencies with virtual environments.

39 minutes

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PYTHON FOUNDATIONS · MODULE 20 OF 20

Python 20 — Testing, Debugging, and a Final Project

Test and debug your code, then finish the student-records application.

39 minutes

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SQL FOUNDATIONS · MODULE 1 OF 20

SQL 01 — Introduction to Databases and SQL

Understand relational databases and run your first SQL with SQLite.

39 minutes

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SQL FOUNDATIONS · MODULE 2 OF 20

SQL 02 — Creating Tables

Define tables with columns, types, keys, and defaults.

39 minutes

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SQL FOUNDATIONS · MODULE 3 OF 20

SQL 03 — Inserting and Querying Data

Add rows with INSERT and read them back with SELECT.

39 minutes

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SQL FOUNDATIONS · MODULE 4 OF 20

SQL 04 — Filtering with WHERE

Select exactly the rows you need with conditions.

39 minutes

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SQL FOUNDATIONS · MODULE 5 OF 20

SQL 05 — Sorting and Limiting Results

Order results with ORDER BY and page through them with LIMIT and OFFSET.

39 minutes

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SQL FOUNDATIONS · MODULE 6 OF 20

SQL 06 — NULL and Missing Values

Handle missing values correctly with IS NULL, COALESCE, and three-valued logic.

39 minutes

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SQL FOUNDATIONS · MODULE 7 OF 20

SQL 07 — Expressions and Functions

Compute values with operators, built-in functions, and CASE.

39 minutes

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SQL FOUNDATIONS · MODULE 8 OF 20

SQL 08 — Aggregate Functions

Summarize many rows into totals, averages, minimums, and counts.

39 minutes

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SQL FOUNDATIONS · MODULE 9 OF 20

SQL 09 — Grouping with GROUP BY and HAVING

Calculate summaries for each group and filter the groups.

39 minutes

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SQL FOUNDATIONS · MODULE 10 OF 20

SQL 10 — Joining Tables

Combine related rows from several tables with INNER JOIN.

39 minutes

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SQL FOUNDATIONS · MODULE 11 OF 20

SQL 11 — Outer Joins

Keep rows without a match using LEFT, RIGHT, and FULL joins.

39 minutes

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SQL FOUNDATIONS · MODULE 12 OF 20

SQL 12 — Updating and Deleting Data

Change and remove rows safely with UPDATE, DELETE, and upserts.

39 minutes

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SQL FOUNDATIONS · MODULE 13 OF 20

SQL 13 — Constraints and Keys

Protect data integrity with keys, UNIQUE, CHECK, and foreign key rules.

39 minutes

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SQL FOUNDATIONS · MODULE 14 OF 20

SQL 14 — Subqueries

Use queries inside queries for comparisons, membership, and existence tests.

39 minutes

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SQL FOUNDATIONS · MODULE 15 OF 20

SQL 15 — Common Table Expressions

Structure complex queries with WITH and walk hierarchies with recursive CTEs.

39 minutes

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SQL FOUNDATIONS · MODULE 16 OF 20

SQL 16 — Window Functions

Rank rows, compute running totals, and compare rows without collapsing them.

39 minutes

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SQL FOUNDATIONS · MODULE 17 OF 20

SQL 17 — Transactions

Group changes so they succeed or fail together.

39 minutes

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SQL FOUNDATIONS · MODULE 18 OF 20

SQL 18 — Indexes and Query Plans

Speed up queries with indexes and read query plans to check them.

39 minutes

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SQL FOUNDATIONS · MODULE 19 OF 20

SQL 19 — Views and Database Design

Design normalized tables and present them through views.

39 minutes

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SQL FOUNDATIONS · MODULE 20 OF 20

SQL 20 — Safe SQL from Applications and a Final Project

Query databases safely from code, then build a complete reporting project.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 1 OF 20

TypeScript 01 — Introduction to TypeScript

Set up TypeScript, run a typed program, and catch mistakes before it runs.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 2 OF 20

TypeScript 02 — Basic Types and Annotations

Annotate variables, arrays, and functions with TypeScript’s everyday types.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 3 OF 20

TypeScript 03 — Type Inference and Literal Types

Know what TypeScript infers and use literal types for precise values.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 4 OF 20

TypeScript 04 — Typing Functions

Describe parameters, return values, and callbacks precisely.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 5 OF 20

TypeScript 05 — Object Types and Interfaces

Describe the shape of objects with interfaces and optional and read-only properties.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 6 OF 20

TypeScript 06 — Union Types and Narrowing

Accept several types safely and let checks narrow them down.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 7 OF 20

TypeScript 07 — Type Aliases, Interfaces, and Intersections

Name types, combine them, and choose between type aliases and interfaces.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 8 OF 20

TypeScript 08 — Discriminated Unions and Exhaustiveness

Model data that comes in several shapes and handle every case.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 9 OF 20

TypeScript 09 — Arrays, Tuples, and Readonly Data

Type collections precisely and prevent accidental changes.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 10 OF 20

TypeScript 10 — Null Safety

Handle missing values deliberately with strict null checks.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 11 OF 20

TypeScript 11 — Generic Functions

Write functions that work with many types while keeping their types precise.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 12 OF 20

TypeScript 12 — Generic Constraints and Generic Types

Restrict type parameters and build reusable generic types.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 13 OF 20

TypeScript 13 — Classes in TypeScript

Type classes, their fields and methods, and the contracts they implement.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 14 OF 20

TypeScript 14 — Utility Types

Derive new types from existing ones with TypeScript’s built-in utilities.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 15 OF 20

TypeScript 15 — keyof, typeof, and Mapped Types

Compute types from values and from other types.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 16 OF 20

TypeScript 16 — unknown, Type Guards, and Assertions

Turn values of unknown type into trusted types with checks the compiler understands.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 17 OF 20

TypeScript 17 — Typing Asynchronous Code

Type promises, async functions, and concurrent work.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 18 OF 20

TypeScript 18 — Modules, Declarations, and satisfies

Organize typed code in modules and use declaration files and satisfies.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 19 OF 20

TypeScript 19 — Validating External Data

Validate JSON and other untrusted input before it enters your typed code.

39 minutes

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TYPESCRIPT FOUNDATIONS · MODULE 20 OF 20

TypeScript 20 — Configuration, Testing, and a Final Project

Configure strict checking, test typed code, and finish the records project.

39 minutes

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