Apply your knowledge by building a project

Your friend has started to take an interest in the Caesar cipher! In this project, you will create a way to tackle this classic encryption method. Soon, you can decode your friend’s messages without taking up your whole afternoon. You will practice concepts frequently tested in technical interviews at top tech companies.

What can be better than a cup of coffee during a break? A coffee that you don’t have to make yourself. It’s enough to press a couple of buttons on the machine and you get a cup of energy; but first, we should teach the machine how to do it. In this project, you will work on programming a coffee machine simulator. The machine works with typical products: coffee, milk, sugar, and plastic cups; if it runs out of something, it shows a notification. You can get three types of coffee: espresso, cappuccino, and latte. Since nothing’s for free, it also collects the money.

If you’ve ever wanted to create games, this project will get you started! In this project, you will code a Rock-Paper-Scissors-Lizard-Spock game, a more advanced version of Rock-Paper-Scissors, which can be played against the computer. You will practice concepts frequently tested in technical interviews at top tech companies.

The International Union Against Idleness (IUAI) announced a competition for an application that would motivate users. There are prizes involved. Since you like competing and know a little bit about programming, you asked your friend to prepare an interesting algorithm for a quick buck. Unfortunately, you weren't clear enough, and instead of a ready-made program, a friend prepared a flowchart of Honest Calculator. You will have to put some effort into assembling it.

Eating out with friends is fun, but splitting the bill can be tricky. This project helps you develop a Python-based tool to easily divide restaurant bills equally. Input the number of friends and the total bill amount, and the app calculates each person's share. No more awkward calculations or uneven splits!

Many people are fond of interactive learning. In this project, you will learn how to write an application that can facilitate solving arithmetic operations in a quick manner. The application will generate a mathematical expression for a user to solve. Implement various levels of difficulty and let the application save the results and show the progress of learning.

Playing with friends is pure fun but getting ahead of them is even more enjoyable. Invite a friend to play the Last Pencil, a game where you decide who wins. In this project, your opponent is a computer that is an expert in the game. But it's up to you to choose who wins.

Have you ever wanted to code a game where the computer is your enemy? Well, this little project allows you to do just that. Take turns playing classic dominoes against your computer in a race to victory. Learn, how artificial intelligence can make use of simple statistics to make educated decisions. This project is all about basic concepts, put them to practice by making a fun little game.

We bet you know how to rename, copy, and delete files on your computer, but have you ever considered creating your file manager? This project will help you do just that. You can guide your file helper through folders, check sizes, and edit content. It's a must-have tool for organizing your computer.

Everybody remembers this paper-and-pencil game from childhood: Tic-Tac-Toe, also known as Noughts and crosses or Xs and Os. A single mistake usually costs you the game, but thankfully it is simple enough that most players discover the best strategy quickly. Let’s program Tic-Tac-Toe and get playing!

Markdown is a special plain text formatting language that is extremely popular among developers. It is used in documents, research articles, Github README files, and other things. In this project, you will write an editor that will be able to recognize several tags, structures, and save your results to a file. You will practice concepts frequently tested in technical interviews at top tech companies.

Welcome to a fun project that takes us back to the '80s and the world of ASCII characters. If you have ever been tasked with drawing a Christmas tree using asterisks in your programming journey, this project is for you. Drawing an entire Christmas card will make the task a bit more challenging. Get ready to have some fun!

Want to convert one currency to another? You can go to your bank website and do the math by yourself. Or you can write a program to do it quickly and efficiently! The Currency Converter is a simple console program that calculates the amount of money you get by converting one currency to another.

Hangman is a popular yet grim puzzle game. A cruel computer hides a word from you, which you try to guess letter by letter. If you fail, you'll be “hanged”. If you win, you'll survive. You’ve probably played the game at least once or twice. Now you can actually create this game yourself!

Online learning is gaining popularity. A good education platform can manage registrations, track learning progress, send notifications and newsletters to many users worldwide. It is a huge volume of work indeed. In this project, you will build an application that keeps track of the registered users, their learning progress, and metrics. It will also provide detailed information about each user or any category of users and the overall statistics for the entire learning platform.

Having the option to read online documentation or find something on the Internet from the command line or terminal can really come in handy. Let's use Python to create a text-based browser. In this project, you will create a simplified browser that will ignore JS and CSS, won't have cookies, and only will show a limited set of tags. But it will still be good enough for some situations, and building it will be fun! You will practice concepts frequently tested in technical interviews at top tech companies.

Duplicate File Handler is a useful tool that can free some space on your drive. Write a handler that checks and compares files in a folder, displays the result, and removes duplicates. You will practice concepts frequently tested in technical interviews at top tech companies.

In the modern world, data has become so abundant that processing it is no easy business. How can anyone make sense of all those words and numbers? In this project, you will write a program that processes textual and numeric data and sorts it. Your program will be able to determine the largest or most frequent pieces of data and perform the necessary calculations on them. You will practice concepts frequently tested in technical interviews at top tech companies. Data is waiting to be sorted!

Do you know how traffic lights were invented? Some time ago, it was decided to replace the traffic police officers with a looped automated system that gives information to drivers about whether they can continue driving or not. In this project, we will implement a simplified version of such a system for a road junction in which many roads converge to one.

The Knight’s Tour is a fun puzzle where you move the knight so that it visits every square of the chessboard once. The rules are simple and fun, but the game is really hard to master. Let’s make a program to find a solution! This project will help you practice concepts frequently tested in technical interviews at top tech companies.

It takes a lot of hard work to enroll in the university of your dreams. Although, we tend to dismiss how difficult it is for the university to handle the document volume. In this project, you'll deal with university applicants. You'll implement an algorithm to determine which applicants are going to be enrolled. At each stage, the algorithm will gradually become more complex and comprehensive! You will practice concepts frequently tested in technical interviews at top tech companies.

In ancient times, the concept of passwords existed, and they are still widely used today. Passwords are essential for online security, and using the internet without them is nearly impossible. To ensure your safety, platforms like Google recommend strong, auto-generated passwords that are difficult to remember without password managers. It would be worthwhile to develop a tool that checks how often your commonly used passwords have been compromised, as this can help you assess the strength of your passwords.

Regular expressions are a fundamental part of computer science and natural language processing. In this project, you will write an extendable regex engine that can handle basic regex syntax, including literals (a, b, c, etc.), wild-cards (.), and metacharacters (?, *, +, ^, $).

Tetris is one of the best-selling video game franchises of all time. You know the rules. Move and rotate blocks of various shapes to fill the empty space on the screen. Fill horizontal rows with the blocks to continue the gameplay. The game is over when there is no free space on the screen.

Everybody remembers this paper-and-pencil game from childhood: Tic-Tac-Toe, also known as Noughts and Crosses or X's and O's. A single mistake usually costs you the game, but thankfully it's simple enough that most players discover the best strategy quickly. Let’s program Tic-Tac-Toe and create an AI opponent to do battle with!

Here’s a project for devoted matrix enthusiasts: learn to perform a variety of operations on matrices including addition, multiplication, finding the determinant, and dealing with inverse matrices. If you are working on your tech or math major, this project is a good chance for you to learn matrices in action and not just in your notebook.

Create a strategic game inspired by "Duskers" where a team of robots explores mysterious locations and looks for titanium. You will build it from scratch starting from the menu and adding the game hub, some animation, a few upgrade options, and some spooky enemies to spice things up. You will practice concepts frequently tested in technical interviews at top tech companies.

Everyone who plays videogames these days knows that they have very good visuals. It was not the case though during the early days of the industry. Many of the first videogames were text-based. "Colossal Cave Adventure" was arguably one of the most influential of them. There were no visuals, only big chunks of text, extended gameplay, a story, and the ability to save and load your progress. Use this project to create a similar text-based adventure game with a story written by you.

In this project, you will create a simple static analyzer tool that finds common stylistic issues in Python code. You will get a general idea of static code analysis and expand your competence in Python.

Calculators are a very helpful tool that we all use on a regular basis. Why not create one yourself and make it really special? In this project, you will write a calculator that not only adds, subtracts, and multiplies, but is also smart enough to remember your previous calculations.

We all use Google. How does Google manage to return a relevant set of web pages for your search in a blink of an eye? In this project, you will have a chance to implement your own ranking algorithm for web pages based on the technology they use in Google – PageRank. You will practice concepts frequently tested in technical interviews at top tech companies.

We all know how hard it is to choose a movie for a party with friends! Why not invent an algorithm that will help you with the task? Create a small program that sorts movies according to the rating of your choice and learn the basics of time complexity analysis and various searching and sorting algorithms. You will practice concepts frequently tested in technical interviews at top tech companies.

When learning a new language, it can be hard to remember all the new vocabulary, which is exactly where flashcards can help. Typically, flashcards show a hint (a task or a picture) on one side and the right answer on the other. Flashcards can be used to remember any sort of data, so if you want to create a useful tool to help your learning and your programming skills, this project is for you. You will practice concepts frequently tested in technical interviews at top tech companies.

Mazes are amazing: keep running and find the exit if you can! If you are not too happy about getting stuck in an actual maze, you can entertain yourself with a virtual one. In this project, you will write a program that generates mazes and looks for a way out.