Java SE 8 New Features Ed 1

Topics

• Course Introduction
• Introducing Lambda Expressions
• A Case for Lambda Expressions
• Filtering Collections with Lambdas
• Using Built in Lambda Types
• Collection Operations with Lambda
• Parallel Streams
• Lambda Cookbook
• Method Enhancements
• Using the Date/Time API: Working with Local Dates and Times
• Using the Date/Time API: Working with Time Zones
• Using the Date/Time API: Working with Date and Time Amounts
• JavaScript on Java with Nashorn: Creating and executing shell scripts
• JavaScript on Java with Nashorn: Writing JavaScript Applications
• JavaScript on Java with Nashorn: Writing JavaFX Applications Using JavaScript
• Intro to Mission Control
• Intro to Flight Recorder

• Reviewing course objectives
• Discussing course format and LVC
• Getting acquainted with instructor and student
• Discussing course topics planned for coverage
• Overview of changes in 8

Introducing Lambda Expressions

• Describing the purpose of an anonymous inner class
• Describing drawbacks to anonymous inner classes
• Describing the components of a lambda expression
• Defining a functional interface
• Creating programs that use lambda expressions

A Case for Lambda Expressions

• Discussing the reasons for adding lambda expressions to the Java language
• Reviewing the standard way of extracting data in Java
• Refactoring code to reduce redundancy
• Refactoring code to use inner classes
• Refactoring code to use lambda expressions
• Listing the benefits of lambda expressions

Filtering Collections with Lambdas

• Iterating though a collection with forEach
• Iterating through a collection using lambda syntax
• Describing the Stream interface
• Filtering a collection using lambda expressions
• Calling an existing method using a method reference
• Chaining multiple methods together
• Comparing function and imperative programming
• Defining pipelines in terms of lambdas and collections

Using Built in Lambda Types

• Listing the built in interfaces included in java.util.function
• Determining true or false with a Predicate
• Processing an object and return nothing with Consumer
• Processing one object and return another with Function
• Generating a new object with Supplier
• Using primitive versions of the base interfaces
• Using binary versions of the base interfaces

Collection Operations with Lambda

• Extracting data from an object using map
• Searching for data using search methods
• Describing the types of stream operations
• Describing the Optional class
• Performing calculations using methods
• Describing lazy processing
• Sorting a stream
• Saving results to a collection using the collect method

Parallel Streams

• Reviewing the key characteristics of streams
• Contrasting old style loop operations with streams
• Describing how to make a stream pipeline execute in parallel
• Listing the key assumptions needed to use a parallel pipeline
• Defining reduction
• Describing why reduction requires an associative function
• Calculating a value using reduce
• Describing the process for decomposing and then merging work

Lambda Cookbook

• Modifying a list using removeIf
• Updating a list using replaceAll
• Updating a map using computeIfAbsent, computerIfPresent, and merge
• Sending the keys and values from a map to a stream
• Reading a file to a stream
• Reading a text file into an ArrayList
• List, walk, and search a directory structure using a stream
• Flattening a stream using flatMap

Method Enhancements

• Considering the importance of building good libraries
• Using static methods in Interfaces
• Using default methods
• Understanding default method inheritance rules

Using the Date/Time API: Working with Local Dates and Times

• Listing the goals of the Date/Time API (JSR-310)
• Creating and manage date-based events
• Creating and manage time-based events
• Combining date and time into a single object

Using the Date/Time API: Working with Time Zones

• Working with dates and times across time-zones and manage changes resulting from daylight savings

Using the Date/Time API: Working with Date and Time Amounts

• Defining and create timestamps, periods and durations
• Applying formatting to local and zoned dates and times

JavaScript on Java with Nashorn: Creating and executing shell scripts

• Creating and execute shell scripts using JavaScript and Nashorn

JavaScript on Java with Nashorn: Writing JavaScript Applications

• Developing JavaScript applications that leverage Java code using Nashorn

JavaScript on Java with Nashorn: Writing JavaFX Applications Using JavaScript

• Running JavaScript script from Java applications usingJSR-223
• Prototype JavaFX applications using Nashorn and JavaScript

Intro to Mission Control

• Describing JMX and Managed Beans with Mission Control
• Monitoring CPU utilization with Mission Control
• Analyzing JVM characteristics with Mission Control
• Analyzing heap memory with Mission Control

Intro to Flight Recorder

• Describing the Java Flight Recorder
• Describing the Java Flight Recorder Architecture
• Starting a Java Flight Recording
• Managing a Java Flight Recording
• Analyzing a Java Flight Recording