Advanced Java Programming

What you will learn

On successful completion of this course you will be able to:

• be fully conversant with and use exceptions ans assertions
• be fully conversant with and use file handling and NIO2
• be fully conversant with and use database access
• be fully conversant with and use multi-threading and concurrency
• be fully conversant with and use localization and resource bundles.

Who Should Attend

Software and applications developers working in a Java programming environment.

Prerequisites

A minimum of six months Java programming experience.

Duration

5 days

Fee (per attendee)

£2255 (ex VAT)

This includes free online 24/7 access to course notes.

Hard copy course notes are available on request from rsmshop@rsm.co.uk

at £50.00 plus carriage per set.

Course Code

AJPMF

Contents

Conversion, Formatting & Precision

Data Type Conversion Wrapper Classes Autoboxing and Unboxing; Decimal Precision; Numeric Formatting; Other Formatting Techniques; Varargs; Type-safe enumerations; Static imports.

Advanced Class Design

Reviews of: Access Modifiers, Hiding Static Methods, Overriding / Hiding Methods Summary, Hiding Variables, Method Overloading - Which Method?, Method Overriding - Which Method?: Virtual Method Invocation; Annotation of Method Overrides; Overriding Methods in java.lang.Object; Overriding Equals and HashCode; Enums; Using Enums with witch / Case Statements; Defining Enums within Classes; Adding Constructors, Fields and Methods to Enums; Using Abstract Methods within Enums; Nested Classes; Member Inner Classes; Referencing the Outer Members from the Inner class; Example of Inner Class In Use; Using Inner Interfaces within Inner Classes; Method-Local Inner Classes; Anonymous Inner classes; Implementing Interfaces with Anonymous Inner Classes; Anonymous Inner Classes within Method calls; Static Nested Classes; Nested Class Summary.

Design Patterns & Principles

Interfaces; Defining an Interface; Implementing Methods; Interfaces with Static Variables and Methods; Interfaces with Default Methods - Java 8; Interface Methods vs Instance Methods - Rules; Duplicate Interface Methods - Rules; Functional Interfaces - Java 8; Using Lambda Expressions with Functional Interfaces; Lambda Expressions - Examples; Functional Interfaces and Generics; Built-In Functional Interfaces; Built-In Functional Interfaces - Predicates; Built-In Functional Interfaces - Functions; Other Built-In Functional Interfaces; Polymorphism Recap; Encapsulation Recap; JavaBean Syntax; Is-a and Has-a Relationships; Java Singleton Class Pattern; Singleton Class - Creating Unique Singletons; Single Classes with Double Checked Locking; Creating Immutable Objects; Creating Objects using the Builder Pattern; Creating Objects using the Factory Pattern.

Generics & Collections

Recap - Arrays; Recap - Lists - The ArrayList Class; Generics; Parameterised Collections; Coding Generic Classes and Interfaces; Generic Restrictions; Coding Generic Methods; Generics - ClassCastException Errors; Generic Bounds; Wildcards; Generic Bounds - Examples; Collection Interfaces; Summary Of Collection Implementations (Classes); Commonly Used Collection Methods; Working With Lists; List Methods; Additional ArrayList Methods; Additional LinkedList Methods; Traversing Collections; Working With Sets; Sets - Set Methods; SortedSet Methods; NavigableSet Methods; Working With Queues; Working With Maps; Maps - Map Methods; Java 8 New Map Methods; Sorting -The Comparable Interface - Natural Ordering; Sorting - Comparators - Non Natural Ordering; Sorting Using the Comparator Interface - pre Java 8; Sorting Using the Comparator Interface - Lambda; Using Method References within Lambdas; Sorting and Searching Collections; Using Functional Interfaces to Process Collections.

Built-In Functional Interfaces

Built-In Functional Interfaces; Functional Interfaces - Default and Static Methods; Method References Recap; Functional Interfaces: Supplier, Consumer and BiConsumer, Predicate and BiPredicate, Function and BiFunction; Interfaces - UnaryOperator and BinaryOperator; Built-In Functional Interfaces - Returning an Optional; Using Streams; Creating Finite and Infinite Streams; Intermediate and Terminal Stream Operations; Terminal Operations; Intermediate Operations; Stream Pipelining; Streams with Primitive Data; Using Optional With Primitive Streams; Stream Mapping; Summarising Statistics; Built-In Functional Interfaces for Primitives; Stream Collection Techniques.

Dates, Strings &d Localization

Date Processing - Java 8 - The Need for Change; Creating Dates and Times; User Defined Dates; Java 8 - Working with TimeZones; Java 8 - Manipulating Dates and Times; Java 8 - Manipulating Dates and Times with ChronoUnit; Java 8 - Working with Periods and Durations; Durations; Java 8 - Date Manipulation; Java 8 - Working with Instants; Java 8 - Daylight Savings Time; Locale - Internationalization and Localization; Using a Resource Bundle / Properties File; Using a Resource Bundle / Properties Class; Formatting Numbers, Dates and Times using a Locale; Parsing Numeric Strings using a Locale; Java 8 - Date and Time Formatting.

Exceptions & Assertions

Java Exceptions; Error, Exception and RuntimeException Classes; Common Exception Types; User Defined Exceptions; Try / Catch Processing; The Finally Block; Passing Exceptions Up the Stack the Throws clause; The Throw Statement; Rethrowing Exceptions; Multi-Catch Blocks; Try-With-Resources; Using the AutoCloseable Interface; Suppressed Exceptions (Secondary Exceptions); Using System.exit() to Terminate; he Assert Statement.

Concurrency

What is a Thread?; Creating Threads; Creating Threads - Technique 1; Creating Threads - Technique 2; Runnable - Functional Interface; Thread Priority; Thread Polling; Terminating Threads; Daemon Threads; Java Concurrency API; The Single Thread Executor; Shutting Down the Executor; Submitting Tasks to the ExecutorService; Checking the Results using Future; The Callable Interface; Callable vs Runnable vs Supplier; Waiting For All Tasks To Finish; Scheduling Tasks - ScheduledExecutorService; Thread Pools; Synchronizing Data Access - Atomic Classes; Synchronizing Data Access - Synchronized Blocks & Synchronized Methods; oncurrent Collections: BlockingQueue, BlockingDeque, CopyOnWrite Classes, Converting to Synchronized; Parallel Streams; Parallel Stream Performance; Parallel Ordering; Problems with Stateful Operations; Parallel Reductions; Combining Streams with Reduce; Combining Streams with Collect; Managing Concurrent Processes; Threading Problems.

I/O

Unicode Overview; Character Conversion Terminology; Code Page Differences; How Unicode Works; Class java.io.File; File Streams; I/O Stream Classes; I/O Stream Class Inheritance; High Level Wrapper Examples; Common Stream Operations; FileInputStream and FileOutputStream; BufferedInputStream and BufferedOutputStream; FileReader / Writer and BufferedReader / Writer; Character Encoding; Serialization - ObjectOutputStream; Deserialization - ObjectInputStream; Serialization - Versioning; PrintStream and PrintWriter Classes; PrintWriter Example; PrintStream Example; PrintWriter / PrintStream: Character Encoding, String Formatting; Interacting With Users.

NIO2

Reasons for NIO.2; Class java.nio.file.Path; Creating a Path using the Paths Factory; Creating a Path using FileSystem; Non Local Path References; Legacy Path References using java.io.File; Common Path Methods; Path Method Examples; Relative Path Processing - The Relativize Method; Joining Paths - The Resolve Method; Checking for Path Existence - The ToRealPath Method; Using Symbolic Links; Class java.nio.file.Files; Files - Existence and Attributes; Files - Attribute Modification; Comparison of legacy File and NIO.2 methods; Using File Views; Files - Making Directories; Common Optional Arguments used within NIO.2 Methods; Files: Copying a Path, Copying File Contents using Streams, Moving (renaming) A Path, Delete a File or Empty Directory: Using Files.newBufferedReader() / Writer(); Files - Read All Lines from a File; Directory Walking with Functional Streams.

JDBC

Database Sample Data; Basic SQL Statement Review; Java Database Introduction; JDBC Drivers and Interfaces; Getting A Database Connection; Locating the Driver; Creating A Statement; Executing Statements; Executing Statements - Update Example; Processing ResultSet Data; Processing ResultSet Date, Time and Timestamp Data; Cursor Operations; Scrollable Cursors; ResultSet - Cursor Scroll Types; Cursor Concurrency Types; Cursor Holdibility Types - (Not Covered on OCP Exam); ResultSet - Scrollable Cursor Example; Closing Connections; Handling SQL Errors; Handling SQL Warnings.

Reflection

Dynamic retrieval of information using reflection; Creating instances of extensibility objects; Class fields, methods and constructors.

Overview of Java EE

Java EE architecture; Web technologies; Servlets and JSPs.