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Intermediate Java 8

Course Code: JAVA-INTDev
Length: 5 Days
Tuition: $2,995.00

Schedule for this Course

There are no dates scheduled for this course.
If you would like to be added to the wait list for this class Click Here

Course Description:

Supported Platforms: Eclipse, IBM RAD (on request), IntelliJ (on request)

Skills Gained:

  • Solidify Java foundational knowledge, including the important contracts of class Object
  • Understand the uses and consequences of inheritance and composition, and reinforce the role of interfaces
  • Reinforce fundamental OO principles such as cohesion, coupling, and polymorphism
  • Use the JUnit testing framework and become fluent in writing assertions to verify correct program behavior
  • Familiarity with UML modeling in class diagrams and sequence diagrams
  • Use advanced techniques for object creation, including factories and singletons
  • Use established design patterns for object composition, including Strategy, Decorator, and Facade
  • Write and use generic classes and methods
  • Learn the use cases for inner classes and refactor existing code to use them when appropriate
  • Create and use custom annotations
  • Be familiar with reflection and how to use it
  • Understand the role of functional interfaces introduced in Java 8
  • Understand lambda expressions and method references, and use them to pass behavior (methods)
  • Use the Stream API to perform complex processing of collections and other input sources
  • Learn the new Date/Time API and use it to solve dateoriented business problems
  • Use Javadoc to write professionalgrade API comments for your classes
  • Understand build tools such as Ant and Maven, and how to manage application dependencies
  • Write appropriate log statements in your code and configure logging with Log4j

Prerequisites

Understanding of programming methodologies, logic, and a some experience using Java 8 and the JDK.

Course Outline:

Session 1: Review Basics

  • Java Environment
  • Classes and Objects
    • Instance Variables, Methods, Constructors, Static Members
    • OO Principles: Data Encapsulation, Cohesion
    • Object Contracts: toString(), equals() and hashCode(), Comparable and Comparator
  • Packages, Enums, Arrays
  • Exceptions

Session 2: Review (Inheritance and Interfaces)

  • UML Overview
  • Inheritance
    • Definition and ISA Relationship
    • Method Overriding, @Override
    • OO Principles: Principle of Substitutability, Polymorphism and Encapsulation of Type, Coupling, OpenClosed Principle
    • Constructor Chaining
  • Interfaces
    • Defining and Implementing, Interface Types
    • Interface Inheritance
  • New Interface Features in Java 8
    • Default Methods, Static Methods
    • Functional Interfaces
  • Guidelines

Session 3: JUnit

  • Overview
  • Tests, Assertions, and Fixtures
    • Writing and Running Tests
    • Assertions
    • Test Fixtures, @Before and @After, @BeforeClass and @AfterClass
    • Testing for Exceptions
  • Best Practices and TestDriven Development Overview (TDD)

Session 4: Collections and Generics

  • Collections Overview
    • Generics and TypeSafe Collections
    • Diamond Operator
  • Lists, Sets, and Maps
    • Interfaces and Contracts
    • Iteration and Autoboxing
    • Utility Classes Collections and Arrays
  • Writing Generic Classes
    • Inheritance with Generic Types
    • Wildcard Parameter Types
    • Type Erasure

Session 5: Techniques of Object Creation

  • Design Patterns Overview
  • Controlling Object Creation
    • Limitations of new Operator, Alternative Techniques
  • Singleton Pattern
  • Simple Factory
  • Factory Method Pattern
  • Other Techniques
    • Named Objects, JNDI
    • Dependency Injection Frameworks

Session 6: Using Composition and Inheritance Effectively

  • Inheritance and Composition Pros and Cons
    • Composition and Delegation
    • HASA, USES Relationships
  • Strategy Pattern
  • Decorator Pattern
  • Façade and Other Patterns
    • Façade, Proxy, Template Method

Session 7: Inner Classes

  • Overview and Motivation
    • Stronger Encapsulation, Rules and Caveats
  • Defining and Using Inner Classes
    • MemberLevel, MethodLocal, Anonymous Classes
  • Static Nested Classes
    • Nested Classes, Nested Interfaces, Nested Enums    Session 8: Annotations
  • Overview
  • Using Annotations
    • Target and Retention Policy
    • Annotation Parameters, Parameter Shortcuts
  • Writing Custom Annotations
    • Syntax, Using the MetaAnnotations
    • Using a Custom Annotation

Session 9: Reflection

  • Overview and API
    • The Class Called Class
    • Obtaining and Inspecting Class Objects
  • Working with Objects Reflectively
    • Creating Instances, Invoking Methods, Setting Field Values

Session 10: Lambda Expressions

  • Overview
    • Functional Interfaces and Lambdas
    • Target Context
  • Using Lambda Expressions
    • Syntax, Lambda Compatibility
    • Variable Capture
    • Type Inference
  • Method References
    • Three Types of Method References
    • Refactoring Lambdas into Method References

Session 11: Streams

  • Overview
    • Streams vs. Collections
    • Anatomy of a Stream
  • Understanding the Stream API
    • Intermediate Operations and Stream Pipeline
    • Java 8 Functional Interfaces: Predicate, Comparator, Function, Consumer, Supplier
  • Stream Processing
    • Filtering, Sorting, Mapping
    • Terminal Operations
  • Collectors
    • Partitioning and Grouping
    • Reducing and Summarizing
    • Downstream Reductions

Session 12: Date/Time API

  • Overview
  • Dates, Times, and Instants
    • Creating, Parsing, and Formatting
    • Accessing Date and Time Fields
    • Deriving New Values
    • Time Zones
  • Periods and Durations
    • Intervals of Time: DateBased and TimeBased
    • Adding and Subtracting Intervals

Session 13 (optional): Overview of Build Tools

  • Javadoc
    • Generating API Documentation
    • Doc Comments and Doc Tags
  • Ant
    • History and Overview
    • Buildfiles, Targets, and Tasks
  • Maven
    • Maven Concepts: Project, POM, Artifact, Naming, Dependency, Plugin, Repository
    • Convention over Configuration
    • Lifecycles and Phases
    • Plugins and Goals

Session 14 (optional): Logging and Log4j

  • Overview
    • Popular Logging Frameworks
  • Writing Log Messages
    • Creating Loggers and Writing Log Messages
    • Log Levels
  • Configuration
    • Appenders and Layouts
    • Logger Configuration and Logger Hierarchy

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