Ballerina
Ballerina
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Join Exercism’s Ballerina Track for access to 60 exercises with automatic analysis of your code and personal mentoring, all 100% free.

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About Ballerina

60 coding exercises for Ballerina on Exercism. From Service Composition to Eliud's Eggs.

Get better at programming through fun, rewarding coding exercises that test your understanding of concepts with Exercism.

Service Composition

Service Composition

In this exercise, you will use Ballerina Records to organize the request payloads and ensure successful communication with external reservation endpoints.

Space Age

Space Age

Given an age in seconds, calculate how old someone is in terms of a given planet's solar years.

Eliud's Eggs

Eliud's Eggs

Help Eliud count the number of eggs in her chicken coop by counting the number of 1 bits in a binary representation.

See all Ballerina exercises on Exercism

Key Features of Ballerina

Ballerina

Cloud native

Network primitives in the language make it simpler to write services and run them in the cloud.

Flexibly typed

Structural types are used for static typing within a program and describing service interfaces.

Data oriented

Type-safe, declarative processing of JSON, XML, and tabular data with language-integrated queries.

Graphical

Programs have both a textual syntax and an equivalent graphical form based on sequence diagrams.

Concurrent

Easy and efficient concurrency with sequence diagrams and language-managed threads.

Reliable, maintainable

Explicit error handling, static types, and concurrency safety combined with a familiar syntax.

Get mentored the Ballerina way

Every language has its own way of doing things. Ballerina is no different. Our mentors will help you learn to think like a Ballerina developer and how to write idiomatic code in Ballerina. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in Ballerina - they'll help you discover the things you don't know that you don't know.

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Community-sourced Ballerina exercises

The Ballerina track on Exercism has 60 exercises to help you write better code.

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