# JAVA 8

- [Interface Changes](/project/java-8/1-interface-default-methods.md)
- [Lambda](/project/java-8/lambda.md)
- [Method Ref](/project/java-8/method-ref.md)
- [Optional](/project/java-8/optional.md)
- [Streams](/project/java-8/2-streams.md)
- [Predicates](/project/java-8/predicates.md)
