https://github.com/adoptopenjdk/lambda-tutorial

Exercises to learn lambda syntax + the Streams API from the upcoming JDK 8 release
https://github.com/adoptopenjdk/lambda-tutorial

Last synced: 8 months ago
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Exercises to learn lambda syntax + the Streams API from the upcoming JDK 8 release

• Host: GitHub
• URL: https://github.com/adoptopenjdk/lambda-tutorial
• Owner: AdoptOpenJDK
• License: gpl-2.0
• Created: 2013-04-09T12:53:24.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2020-04-11T11:07:24.000Z (almost 6 years ago)
• Last Synced: 2025-03-31T21:42:35.651Z (10 months ago)
• Language: Java
• Size: 240 KB
• Stars: 107
• Watchers: 39
• Forks: 127
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

          
## Lambda Tutorial [![Build Status](https://travis-ci.org/AdoptOpenJDK/lambda-tutorial.png?branch=master)](https://travis-ci.org/AdoptOpenJDK/lambda-tutorial)

A set of exercises to teach use of Java 8 lambda syntax, and the Streams API.

To follow the exercises:

 - fork and clone the repository

 - ensure you have a correctly configured, JDK8+ build

   - Maven can help generate configuration for your favourite IDE

   - ensure your cloned project, particularly the class `ConfigureYourLambdaBuildOfJdk` compiles and runs correctly

 - navigate to the first exercise, `Exercise_1_Test` (tests are in `src/test/java`, in the package `org.adoptopenjdk.lambda.tutorial`)

 - read background information in the JavaDoc, and follow instructions, making the test pass

 - to find solutions check out different branches of the project. Two flavours of solutions are available: what it might have looked like before JDK 8, and what it might look like after JDK 8. Those are in branches `solutions-prejava8` and `solutions-postjava8` respectively.

### Exercises

 1. Internal vs External Iteration (the forEach method)

 2. Filtering and Collecting

 3. Mapping

 4. Method References

 5. Default methods on interfaces