Zookeeper with Java
- Best to start
Learn the very basics of Java coding by building a simple tool for zookeepers. Get to know how to work with variables, strings and arrays, put them in while loops and develop a simple console app from scratch.
Apply your knowledge by building a project
If you're just starting
Simple Chat Bot with Java
- 4.3
- 6 hr
Begin grasping coding fundamentals by creating a simple console chat bot from scratch. This bot will be able to engage in basic conversation with you and perform simple arithmetic. During this journey, you will play some word and number games that you are going to implement on your own. Pack up and let’s hit the road!
My First Project with Java
- 4.1
- 3 hr
- Fastest to complete
Imagine that you're the owner of a new small corner shop. You are doing well and want to determine how much you earned in the first month. Create a simple tool that will calculate your net income. Upon completing this project, you can use this tool for your own accounting needs.
To build upon the basics
Coffee Machine Simulator with Java
- 4.3
- 14 hr
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'll program a coffee machine simulator using Java. 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.
This project allows you to better understand the basic OOP, its main concepts such as classes, class methods and attributes, and get a taste of Java. Practice working with methods, challenge yourself with loops and conditions, and get more confident with OOP.Chuck Norris Cipher Encoder (Java)
- 4.2
- 18 hr
Secret agents use encryption all the time. You know that everything can be encrypted as different characters. What about encryption that uses only one character and space? This method has a name — the Chuck Norris cipher. In this project, you will create a program that can encrypt any text into a sequence of zeros and spaces and decrypt this sequence into text.
Amazing Numbers
- 4.2
- 22 hr
We use numbers every day. But do you know how many different properties they have? Let's take a look at some of the amazing properties of numbers. After completing this project, you will write a program that knows how to determine whether a number is Palindromic or Gapful, or how to distinguish Spy numbers from others. Numbers can be fascinating!
Simple Tic-Tac-Toe (Java)
- 4.2
- 14 hr
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!
To practice all the basic concepts and learn new ones
Flashcards (Java)
- 4.3
- 27 hr
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.
Honest Calculator (Java)
- 4.0
- 20 hr
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.
Tic-Tac-Toe with AI (Java)
- 4.5
- 24 hr
- Best rating
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!
Readability Score (Java)
- 4.1
- 21 hr
Everyone has their own personal reading history, and as we grow up, we are able to comprehend more and more complicated texts. But how do you estimate the level of difficulty of a given text, and how do you teach a computer to do that? In this project, you will find it out: write a program that determines how difficult the text is and for which age it is most suitable.
ASCII Mirror
- 4.1
- 23 hr
Far, far away, in the ASCII lands, there are ASCII animals that urgently need your help. Something is not right with their mirrors — they appear crooked. Let's help them with this anomaly and hit the road. You will practice concepts frequently tested in technical interviews at top tech companies.
Number Base Converter (Java)
- 4.0
- 27 hr
We’re all quite used to our good old decimal system of numerals. But let’s not forget that there are other ways to count! Whether we need to convert numbers from one system to another just for fun or to store large data more efficiently, a converter proves helpful. In this project, you will create your own tool that will help you convert numbers from one system to another.
To perfect your knowledge with challenging tasks
BugBusters
- 4.1
- 36 hr
Get ready to put your coding skills to the test by troubleshooting bugs in a project centered on data retention. You'll delve into a world of flawed lines of code, identifying and rectifying errors to hone your abilities. You will practice concepts frequently tested in technical interviews at top tech companies.
Graduate