Java 8 Programming and Object Oriented Essentials for Developers New to OO

Java 8: A First Look

The Java Platform

• Java Platforms
• Lifecycle of a Java Program
• Responsibilities of JVM
• Documentation and Code Reuse

Using the JDK

• Setting up Environment
• Locating Class Files
• Compiling Package Classes
• Source and Class Files
• Java Applications

The Eclipse Paradigm

• Workbench and Workspace
• Views
• Editors
• Perspectives
• Projects

OO Concepts

• Object-Oriented Programming
• Real-World Objects
• Classes and Objects
• Object Behavior
• Methods and Messages

Inheritance, Abstraction, and Polymorphism

• Encapsulation
• Inheritance
• Method Overriding
• Polymorphism

Getting Started with Java

• Writing a Simple Class
• Classes in Java
• Class Modifiers and Types
  
  • Class Instance Variables
  • Primitives vs. Object References
  • Creating Objects

Adding Methods to the Class

• Passing Parameters into Methods
• Returning a Value from a Method
• Overloaded Methods
• Constructors
• Optimizing Constructor Usage

Language Statements

• Operators
• Comparison and Logical Operators
• Looping
• Continue and Break Statements
• The Switch Statement
• The For-Each() Loop
• For-Each Loop Restrictions

Using Strings

• Strings
• String Methods
• String Equality
• StringBuffer
• StringBuilder
• Java 8: String Joiner

Specializing in a Subclass

• Extending a Class
• Casting
• The Object Class
• Default Constructor
• Implicit Constructor Chaining

Essential Java Programming

Fields and Variables

• Instance vs. Local Variables: Usage Differences
• Data Types
• Default Values
• Block Scoping Rules
• Final and Static Fields
• Static Methods

Using Arrays

• Arrays
• Accessing the Array
• Multidimensional Arrays
• Copying Arrays
• Variable Arguments

Java Packages and Visibility

• Class Location of Packages
• The Package Keyword
• Importing Classes
• Executing Programs
• Java Naming Conventions

Advanced Java Programming

Inheritance and Polymorphism

• Polymorphism: The Subclasses
• Upcasting vs. Downcasting
• Calling Superclass Methods from Subclass
• The Final Keyword

Interfaces and Abstract Classes

• Separating Capability from Implementation
• Abstract Classes
• Implementing an Interface
• Abstract Classes vs. Interfaces

Exceptions

• Exception Architecture
• Handling Multiple Exceptions
• Automatic Closure of Resources
• Creating Your Own Exceptions
• Throwing Exceptions
• Checked vs. Unchecked Exceptions

Java Developer's Toolbox

Utility Classes

• Wrapper Classes
• The Number Class
• Random Numbers
• Autoboxing/Unboxing
• The Date Class

Enumerations and static imports

• Enumeration Syntax
• When You Should Use Enumerations
• Using Static Imports
• When You Should Use Static Imports

Java 8 - The Date/Time API

• The Core Date/Time classes
• Formatting Dates
• Working with Time Zones
• Manipulate Date/Time Values

Collections and Generics

Generics

• Generics and Subtyping
• Bounded Wildcards
• Generic Methods
• Legacy Calls to Generics
• When Generics Should Be Used

Collections

• Characterizing Collections
• Collection Interface Hierarchy
• Iterators
• The Set Interface
• The List Interface
• Queue Interface
• Map Interfaces
• Using the Right Collection
• Collections and Multithreading

Lambda and Streams

Java 8: Introduction to Lambda

• Functional vs OO Programming
• Anonymous Inner-classes
• Lambda Expression Syntax
• Functional Interfaces
• Method references
• Constructor references

Java 8: Streams

• Processing Collections of data
• The Stream interface
• Reduction and Parallelism
• Filtering collection data
• Sorting Collection data
• Map collection data
• Find elements in Stream
• Numeric Streams
• Create infinite Streams
• Sources for using Streams

Java 8: Collectors

• Creating Collections from a Stream
• Group elements in the Stream
• Multi-level grouping of elements
• Partitioning Streams

Java Application Development

Introduction to Annotations

• Annotations Overview
• Working with Java Annotations

JDBC

• Connecting to the Database
• Statement and PreparedStatement
• ResultSet
• Executing Inserts, Updates, and Deletes
• Controlling Transactions and Concurrency

• OO programming and its advantages in today's world
• Objects, classes, and OO implementations
• Basic concepts of OO such as encapsulation, inheritance, polymorphism, and abstraction
• Fundamentals of the Java language, its importance, uses, strengths, and weaknesses
• How Java language relates to OO programming and the object model
• Use classes, inheritance and polymorphism
• Use collections, generics, autoboxing, and enumerations
• Use Lambda expressions
• Use the stream application programming interface (API)
• Discover the new date/time API
• Use the Java Database Connectivity (JDBC) API for database access
• Work with annotations
• Java tooling

Specific Java 8 features that are covered in the course include:

• The new date/time API
• Lambda expressions
• Method and constructor references
• The stream API
• Collectors
• The optional class

This course is about 50% hands-on lab and 50% lecture with extensive programming exercises designed to reinforce core development skills, concepts, and best practices learned in the lessons. Our courses include ample materials and labs to ensure all students are either appropriately challenged, or assisted, at all times—no matter their skill level.

Practical experience working with procedural or non-OO languages such as C, COBOL, 4GL, or mainframe

Developers who wish to use Java or who need to reinforce sound OO Java coding practices