advanced_practice

• Optionals

  • .ifPresent(Consumer)
  • .isPresent()
  • .orElse(Object)
  • .orElseGet(Supplier)
  • .orElseThrow(Supplier)

• Generic methods

  • Creating custom collectors
  • Some random representations
  • Some random representations + filtering and aggregate functions (SUM, MIN, MAX)

• Functional interfaces:

  • Lambda
  • Method reference
  • Predicate
  • Supplier
  • Consumer
  • Function

• Guava

  • Collection utilities
  • Preconditions practice
  • Sets: union(), intersection(), symmetricDifference()

• Reflection API

  • Copying an interface without using the toString(); methods; making the copied code compilable.

...to be continued