Java

• Core Java
  • Nested Classes
  • Fail-fast and Fail-safe (weakly consistent) Iterators
  • Generics
    • Type Erasure
  • hashCode() and equals()
    • Overriding equals()
    • Overriding hashCode()
  • Comparable
  • Comparator
  • Comparator vs Comparable
  • Immutable
  • String
• Collections
• Stack
• Map
  • Queue
    • PriorityQueue
• Functional Interfaces
  • Basic function shapes
    • Consumer<T>
    • Supplier<T>
    • Predicate<T>
    • Function<T, R>
  • Lambda Expression
    • Closure
  • Method Reference
• Streams
  • Collectors
  • Reduce
  • Collect
  • Processing methods
  • map() vs flatMap()
  • Collectors
  • Reduction, concurrency and ordering
  • Parallel Streams
• Optional
  • Creating Optional objects
  • Using map on Optional
  • Chaining Optional objects with flatMap
• Concurrency
  • Todo:
    • Race Condition
  • Synchronizers
    • CountDownLatch
    • Semaphore
  • Liveness
    • Deadlock
    • Livelock
  • BlockingQueue
    • Producer Consumer
  • ThreadLocal
• JVM
• Testing
  • Junit
  • Mockito
  • Spring

Java 8 Features

Java 11 Features

Glossary

Term	Meaning
reference equality	==

Terms & Concepts

Value-based Classes

https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/doc-files/ValueBased.html