Java

External

• Java 11 https://docs.oracle.com/en/java/javase/11/docs/api/
• Java 10 https://docs.oracle.com/javase/10/docs/api/
• Java 8 https://docs.oracle.com/javase/8/docs/api/
• Java Language and Virtual Machine Specification https://docs.oracle.com/javase/specs/
• Java Release Notes https://www.oracle.com/java/technologies/javase/jdk-relnotes-index.html

Internal

• Object-Oriented Programming

Overview

Java is an object oriented language. However, "object oriented" is just one of the way the language can be used, one of the styles of coding Java supports. The language also has procedural capabilities and functional programming capabilities.

Subjects

Java on Linux	Java Bytecode	Format	Threads	Streams
javaagent		Troubleshooting	Time	Timer
JMX	Memory	XML and Java	Java Type System	javadoc
JNDI	JAX-RS	java Class	Networking	Services
Random Access Files	JDBC	'synchronized' mechanism	final Keyword	java Math
NIO	jar	Enums	Shutdown	Regular Expressions
Creating Native Processes from Java	JSR	java 8 Lambda Expressions	java String Metacharacters	java Security
Autoboxing	Collections	java.lang	Java Virtual Machine	javadoc
JavaBeans	Java Cryptography	Java HashMap	Temporary Files and Directories	Recursively Delete a Directory
Java Same Address Space Event and Notification Mechanisms	Numeric Values Representation in Java	Logging	Java in a Container
Java on Mac	Java Dynamic Proxies	Java Arrays

Language

Java Language

Chronology

Java 4

• NIO
• assert

Java 5

• java.util.concurrent
• Java Generics
• Unicode supplementary characters handling enhancements
• Iterable
• Annotations and Annotation Processors
• enum

Java 7

• Java 7 Release Notes http://www.oracle.com/technetwork/java/javase/jdk7-relnotes-418459.html
• try-with-resources
• Fork/Join Framework
• The Diamond <>
• Type Inference
• Java NIO 2
• Catching Multiple Exceptions and Exception Improved Type Checking

Java 8

• Java 8 Release Notes http://www.oracle.com/technetwork/java/javase/8-whats-new-2157071.html (March 2014)
• Lambda Expressions
• Streams API
• Optional
• Default Methods in Interfaces
• Java 8 Effectively Final Variables
• TODO https://www.infoq.com/presentations/effective-java-third-edition
• JSR 308 Annotations on Java Types

Java 9

• Java 9 Release Notes https://docs.oracle.com/javase/9/whatsnew/toc.htm (September 2017)
• Java Modules
• Java Reactive Streams
• module, requires, transitive, exports to, uses, provides, with, opens to

Java 10

• https://docs.oracle.com/javase/10/index.html
• var

Java 11

• JEP 321 HTTPClient
• Local Variable Syntax for Lambda Parameters
• Nests
• https://dzone.com/articles/90-new-features-and-apis-in-jdk-11
• Java 11 Single-File Source Code

Libraries

Logging

• log4j
• Logback
• slf4j