Pregunta de entrevista de Capgemini

1. Can you brief me your technical skill 2. Knowledge of Java8 3. Explain me java8 features? 4. What is functional interface? 5. @functionalInterface is mandatory? 6. Optiponal classes in java8? 7. Streams? 8. What is the diff bet JDK, JRE, JVM? 9. Can we do java compilation in JRE 10. Where do we java compilation? 11. Diff bet String n StringBuilder? 12. StringBuffer ? 13. Diff bet Arraylist n LinkedList?