Introduction to Java 11 Using Eclipse

Course Overview

Overview of Java

• History Of Java
• Java Release Cycle
• Benefits Of Java
• What Is Java?
• What's This "Virtual Machine"?
• Comparison to Other Languages
• Java Programs
• Basic Java Development Tools
• Java Editions
• Example – HelloWorld
• Java Classes
• Main Methods
• Statements
• Summary

Java Tools in Eclipse

• Eclipse Platform
• Eclipse Workspace
• Perspectives, Views & Editors
• Basic Operations with Eclipse Views and Perspectives
• The Java Perspective
• The Debug Perspective
• Navigator View
• Package Explorer
• Outline View
• Problems View
• Eclipse Preferences
• Build and Validation
• Code Completion, Templates and Snippets
• Searching
• Configure Compiler Class Path
• JRE Switching

Basic Object Concepts

• What Is An Object?
• State
• Behavior
• Encapsulation
• Encapsulation Examples
• Classes vs. Objects
• Inheritance
• Interfaces
• Polymorphism
• Benefits Of Objects

Basic Java Syntax

• Declaring And Initializing Variables
• Keywords
• Coding Tips – Variables
• Primitive Data Types
• Logical - boolean
• Textual - char and String
• Integral - byte, short, int, long
• Floating Point - float and double
• Numeric Literals
• Strings
• Creating Strings
• White Space
• Comments
• Coding Tips - Comments
• Java Statements
• Coding Tips - Statements
• Scope of a Variable
• Local Variable Type Inference
• System.out/System.in
• Scanner Class

Operations and Making Decisions

• Operator Categories
• Special Situations
• Binary Operators
• Integer Division
• Numeric Promotion
• Type Conversion Of Primitive Types
• Unary Operators
• Relational Operators
• Logical Operators
• \"Short Circuited\" Operators
• Bitwise Operators
• Shift Operators
• Overflow And Underflow
• Assignment Operators
• Ternary Operator
• Calculation Errors
• Operator Precedence
• Precedence Examples
• Combining Strings
• Coding Tips - Operators
• Control Flow Statements
• 'if' Statement
• 'if…else' Statement
• Nested Statements
• Coding Tips - if & if-else

Using Classes and Objects

• Objects, Instances, And Classes
• What Are Classes?
• Working With Classes And Objects
• Instantiation
• Instance Methods
• Object References
• Null Values
• String Operations
• "Wrapper" Classes
• Autoboxing

Writing Classes

• Why Define Your Own Classes?
• Encapsulation
• Elements Of A Class
• Defining Classes
• Coding Tips - Class Definitions
• Fields
• Defining Fields
• Coding Tips - Fields
• Methods
• Defining Methods
• Passing Parameters
• Overloading Methods
• Coding Tips - Methods
• Local Variables vs. Instance Variables

Controlling Code Access and Code Organization

• Controlling Access
• Data Hiding
• Encapsulation
• JavaBeans
• Packages
• Naming Packages
• Declaring Packages In Classes
• Problems Solved With Packages
• Package Access
• Example - Access Modifiers
• Import Statement
• Using Classes From Packages
• Coding Tips - Import Statements
• Correlation To File Structure
• Class Path
• Java Core Packages
• Java Module System
• Java API Documentation

Constructors and Class Members

• Constructors
• Default Constructor
• Multiple Constructors
• Defining Constructors
• Example - Calling Constructors
• "Good" Constructors
• 'this' Keyword
• Using 'this' to Call a Constructor
• Using 'this' to Set a Field
• Class Members
• Comparison With Instance Members
• Use Of Class Variables
• Static Class Methods
• Use Of Class Methods
• The Math Class
• Main Method And Command Line Arguments
• Declaring Constants
• Coding Tips - Class Members
• Useful Standard Class Members

Advanced Control Structures

• 'switch' Statement
• Example - switch
• Switch "Fall Through"
• Using switch "Fall Through" for Multiple Options
• Strings in switch Statement
• 'for' Loop
• 'while' Loop
• 'do…while' Loop
• Break Statement
• Labeled Statements
• Continue Statement
• Coding Tips - Control Structures

Inheritance

• Inheritance Is…
• Inheritance Examples
• Declaring Inheritance
• Inheritance Hierarchy
• Access Modifiers Revisited
• Inherited Members
• Instances Of A Subclass
• Role In Reuse
• Overriding Methods
• @Override Annotation
• The super Keyword
• Example - super Keyword
• Problems with Constructors
• Limiting Subclasses
• Calling Methods in Constructors
• The Object Class

Arrays

• Arrays
• Declaring Arrays
• Populating Arrays
• Accessing Arrays
• Arrays of Objects
• Array Length
• Coding Tips - Arrays
• Array References
• Multidimensional Arrays
• Arrays Of Arrays
• Copying Arrays
• For-Each loop
• Command Line Arguments
• Variable Arguments

Commonly Overridden Methods

• Overriding Methods
• Using Eclipse to Override Methods
• toString()
• toString() in Object
• Overriding toString()
• Comparing Objects
• Using == vs. equals(..)
• Overriding equals(..)
• Complex Comparisons
• equals(..) Example
• hashCode()
• Overriding hashCode()
• hashCode() Example
• Generating equals and hashCode

Exceptions

• What is an Exception
• Benefits
• The java.lang.Exception Class
• How to Work With Exceptions
• Example Exception Handling
• The try-catch-finally Statement
• Flow of Program Control
• Exception Hierarchy
• Checked Exceptions
• Unchecked Exceptions
• Coding Tips - Exception Types
• Catching Subclass Exceptions
• Catching Multiple Exceptions
• Specifying Thrown Exceptions
• Rethrowing Exceptions
• Chaining Exceptions
• Creating your Own Exception
• try-with-resources Statement
• Suppressed Exceptions in try-with-resources

Interfaces and Polymorphism

• Casting Objects
• The instanceof Operator
• Abstract Classes
• Abstract Class – An Example
• Interface
• Interface – An Example
• Comparable Interface
• Comparable Example
• Default Methods
• Default Method Example
• Static Methods
• Private Interface Methods
• Coding Tips - Superclass or Abstract Class/Interface?
• Coding Tips – Abstract Class or Interface
• Polymorphism
• Conditions for Polymorphism
• Coding Tips - Leveraging Polymorphism
• Covariant Return Types

Useful Java Classes

• Java Logging API
• Control Flow of Logging
• Logging Levels
• Loggers
• Logging Example
• Logging Handlers
• Logging Formatters & Log Manager
• Logging Configuration File
• Example Logging Configuration File
• Logging Filters
• java.lang.StringBuilder
• java.util.StringTokenizer
• java.util.Arrays & java.util.Collections
• java.util.Random
• Java Date and Time
• Local Date and Time
• java.util.Date and java.time.Instant
• Formatting

Collections and Generics

• What are Collections?
• Arrays vs. Collections
• Main Collections Interfaces
• java.util.Collection
• Main Collection Methods
• Sets
• java.util.List
• java.util.Queue
• Iteration on a Collection
• Iterator vs. For-Each Loop
• Maps
• java.util.Map
• Other Maps
• Collections Implementations
• Abstract Implementations
• Choosing a Collection Type
• Generics
• Generics and Collections
• Generic Collection Example
• Collections and Primitive Types
• Generic Diamond Operator
• Collection Factory Methods

Introduction to Lambda Expressions

• Functional Interface
• Anonymous Inner Class (AIC)
• Downside of AIC
• Lambda Expressions
• Lambda Expression Syntax
• Method Reference
• Benefits of Lambda Expressions – An Example
• Initial Version
• Refactor Criteria Into Method
• Predicate Interface
• Using a Predicate
• Implement as Separate Class
• Implement as AIC
• Use Lambda Expressions
• Reuse Lambda Expressions

Input and Output

• Overview of Java Input/Output
• The File Class
• File Example
• The java.nio.file.Path Interface
• Serialization
• Serializing Object State
• Avoiding Serialization Problems
• serialVersionUID
• Options for File Input/Output
• Streams
• Input Stream
• Output Stream
• "Chained" Streams
• RandomAccessFile
• try-with-resources Statement
• Using Streams - Write Example
• Using Streams - Read Example
• Reader and Writer
• NIO Channels and Buffers

Other Java Concepts

• Annotations
• Enumerated Types
• Enumerated Types – Example
• Assertions
• When to use Assertions
• Assertions Examples
• Enabling Assertions
• JVM Storage Areas
• Java Heap Space
• Heap Size Limits
• Garbage Collection Basics
• Allocation Failure (AF)
• OutOfMemoryError
• Memory Leak
• JShell
• Distributing Java Code with JARs

Lab Exercises

• Lab 1. The HelloWorld Class
• Lab 2. Refining The HelloWorld Class
• Lab 3. The Arithmetic Class
• Lab 4. Project - Prompt and Store StockAccount Information (Optional)
• Lab 5. Creating A Simple Object
• Lab 6. Project - Create a StockAccount Class (Optional)
• Lab 7. Getters and Setters
• Lab 8. Project - Improve Encapsulation (Optional)
• Lab 9. Using Constructors
• Lab 10. Project - Add Constructors (Optional)
• Lab 11. Project – Create a Stock Class (Optional)
• Lab 12. Project – Buy Stock (Optional)
• Lab 13. Project – Sell Stock (Optional)
• Lab 14. Looping
• Lab 15. Project - Loop Until Quit (Optional)
• Lab 16. Subclasses
• Lab 17. Project - Dividend Stocks (Optional)
• Lab 18. Arrays
• Lab 19. Method Overriding
• Lab 20. Project - Improved Stock Output (Optional)
• Lab 21. Exception Handling
• Lab 22. Project - Better Error Handling (Optional)
• Lab 23. Interfaces
• Lab 24. Collections
• Lab 25. Project – Multiple Stocks (Optional)
• Lab 26. Introduction to Lambda Expressions
• Lab 27. Writing To A File
• Lab 28. Project - Saving to a File (Optional)

Prerequisites

It is beneficial but not required for students to be familiar with object-oriented principles and the concept of object-oriented programming.