Overview
Java 8 Programming for Object Oriented Experienced Developers is a five-day, comprehensive hands-on introduction to Java training course geared for developers who have prior working knowledge of object-oriented programming languages such as C# or C++. The course covers best practices for writing great object-oriented programs in Java 8 using appropriate development techniques, new features for improved performance and new capabilities for handling rapid application development. The course also involves discussion on a real-world case study that would also serve as a reference for the participants during the course and after its completion.
What You'll Learn
- Understand not only the fundamentals of the Java language, but also its importance, uses, strengths and weaknesses
- Understand the basics of the Java language and how it relates to OO programming and the Object Model
- Learn to use Java multi-threading and exception handling features
- Understand and use classes, inheritance and polymorphism
- Understand and use collections, generics, autoboxing, and enumerations including new Java features and capabilities
- Become familiar with the concept of functional programming using Lambda Expressions
- Process large amounts of data using the Stream API introduced in Java 8
- Use the JDBC API for database access
- Work with annotations
- Understand and work with the classes in the concurrent package
- Take advantage of the Java tooling that is available with the programming environment being used in the class
Curriculum
- Java Platforms
- Lifecycle of a Java Program
- Responsibilities of JVM
- Documentation and Code Reuse
- Setting Up Environment
- Locating Class Files
- Compiling Package Classes
- Source and Class Files
- Java Applications
- Exercise: Exploring MemoryViewer
- Exercise: Exploring ColorPicker
- Workbench and Workspace
- Views
- Editors
- Perspectives
- Projects
- Tutorial: Working with Eclipse
- Classes in Java
- Class Modifiers and Types
- Class Instance Variables
- Primitives vs. Object References
- Creating Objects
- Exercise: Create a Simple Class
- Passing Parameters into Methods
- Returning a Value from a Method
- Overloaded Methods
- Constructors
- Optimizing Constructor Usage
- Exercise: Create a Class with Methods
- Operators
- Comparison and Logical Operators
- Looping
- Continue and Break Statements
- The switch Statement
- The for-each() Loop
- Exercise: Looping
- Exercise: Language Statements
- Strings
- String Methods
- String Equality
- StringBuffer
- StringBuilder
- Exercise: Fun with Strings
- Exercise: Using StringBuffers and StringBuilders
- Extending a Class
- Casting
- The Object Class
- Default Constructor
- Implicit Constructor Chaining
- Exercise: Creating Subclasses
- Exercise: Defining the Student Subclass
- Instance vs. Local Variables: Usage Differences
- Data Types
- Default Values
- Block Scoping Rules
- Final and Static Fields
- Static Methods
- Exercise: Field Test
- Arrays
- Accessing the Array
- Multidimensional Arrays
- Copying Arrays
- Variable Arguments
- Exercise: Creating an Array
- Exercise: Defining the Student Array
- Class Location of Packages
- The Package Keyword
- Importing Classes
- Executing Programs
- Java Naming Conventions
- Polymorphism: The Subclasses
- Upcasting vs. Downcasting
- Calling Superclass Methods From Subclass
- The final Keyword
- Exercise: Salaries – Polymorphism
- Separating Capability from Implementation
- Abstract Classes
- Implementing an Interface
- Abstract Classes vs. Interfaces
- Exercise: Mailable – Interfaces
- Exception Architecture
- Handling Multiple Exceptions
- Automatic Closure of Resources
- Creating Your Own Exceptions
- Throwing Exceptions
- Checked vs. Unchecked Exceptions
- Exercise: Exceptions
- Wrapper classes
- The number class
- Random numbers
- Autoboxing/unboxing
- The date class
- Exercise: Using primitive wrappers
- Enumeration Syntax
- When You Should Use Enumerations
- Using Static Imports
- When You Should Use Static Imports
- Exercise: Enumerations
- Introduce the new Date/Time API
- LocalDate, LocalDateTime, etc.
- Formatting Dates
- Working with time zones
- Manipulate date/time values
- Exercise: Agenda
- StringJoiner
- format
- out.printf
- The Formatter class
- Using the formatting syntax
- Generics and Subtyping
- Bounded Wildcards
- Generic Methods
- Legacy Calls To Generics
- When Generics Should Be Used
- Exercise: DynamicArray
- Exercise: Adding Generics to Dynamic Array
- Characterizing Collections
- Collection Interface Hierarchy
- Iterators
- The Set Interface
- The List Interface
- Queue Interface
- Map Interfaces
- Using the Right Collection
- Collections and Multithreading
- Exercise: Using Hashtable and HashMap
- Exercise: Collections Poker
- Exercise: Writing a Collection
- Functional vs OO Programming
- Anonymous Inner-classes
- Lambda Expression Syntax
- Functional Interfaces
- Method references
- Constructor references
- Introduce the ConcurrentHashMap
- Lambda expressions and Collections
- Exercise: Functional Collections
- 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
- Exercise: Working with Streams
- Creating Collections from a Stream
- Group elements in the Stream
- Multi-level grouping of elements
- Partitioning Streams
- Exercise: Collecting
- Principles of Multithreading
- Creating a Threaded Class
- Basic Features of the Thread Class
- Thread Scheduling
- Thread Synchronization
- Exercise: Simple Thread Class
- Exercise: Simple Runnable Class
- Concurrent Locks are Explicit and Flexible
- Executor Interfaces Provide Thread Management
- Challenges for Concurrent Use of Collections
- Concurrent Collections
- Atomic Variables Avoid Synchronization
- Exercise: Working with Concurrent Java
- Exercise: Sleeping Threads
- Exercise: Safe Data Access
- Exercise: Producer/Consumer
- The common thread pool
- Atomic variables
- LongAdder and LongAccumulator
- CompletableFuture
- Non-blocking asynchronous tasks
- Exercise: CompletableFuture
- The Java I/O Mechanism
- Subclasses Accessing Real Data
- Filter Classes
- New File IO – NIO
- NIO Overview
- Exercise: Files
- Annotations Overview
- Working with Java Annotations
- Exercise: Annotations
- Exercise: Using Annotations
- Connecting to the Database
- Statement and PreparedStatement
- ResultSet
- Executing Inserts, Updates, and Deletes
- Controlling Transactions and Concurrency
- Tutorial: Setup The Derby Database
- Exercise: Reading Table Data
- Exercise: Using JdbcRowSet
- Exercise: Executing within a Transaction
- StringJoiner
- format
- out.printf
- The Formatter class
- Using the formatting syntax
- The common thread pool
- Atomic variables
- LongAdder and LongAccumulator
- CompletableFuture
- Non-blocking asynchronous tasks
- Lab: CompletableFuture
Who should attend
This is an introductory- level Java programming course, designed for experienced developers who wish to get up and running with Java, or who need to reinforce sound Java coding practices, immediately.
Prerequisites
Participants need to have a working knowledge of developing object-oriented software applications.
