Introduction to Java 11 Using IntelliJ Training

This course introduces the Java programming language and how to develop Java applications using IntelliJ. Students learn the syntax of the Java programming language, object-oriented programming using Java, exception handling, generics, collections, and file input/output (I/O). During the course, students will develop and test Java applications using IntelliJ. This course covers Java SE 11.

Throughout the course, students will also work on a "project," which develops a complex Java application by applying principles learned to meet changing application requirements. This project is intended to simulate the programming environment they would encounter in real-world projects by providing application requirements and challenging the student to write Java code to meet those requirements.

Objectives

After completing this course, the student should be able to:

• Apply OOP principles

• Design OO applications using abstraction, encapsulation, modularity and hierarchy

• Use Java exceptions to guarantee graceful error recovery for your application

• Create and use inner classes in your program to make them concise and clear

• Do input/output using Java

• Use Java Lambda expressions

• Use IntelliJ for Java application development

Topics

• Java basics

• A basic introduction to IntelliJ

• Branching and looping

• Objects

• Advanced-class concepts

• Arrays

• Exceptions

• Collections and Generics

• Stream I/O

• Practical work.

• Extensive practical exercises take students through all major aspects of the design and development of Java programs. Students will be introduced to various wizards and tools available from IntelliJ.

Audience

This course is intended for programmers who are interested in adding Java to their skills.

Prerequisites

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

Outline for Introduction to Java 11 Using IntelliJ Training

Chapter 1 - 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

Chapter 2 - Basic Object Concepts

• What Is An Object?

• State

• Behavior

• Encapsulation

• Encapsulation Examples

• Classes vs. Objects

• Inheritance

• Interfaces

• Polymorphism

• Benefits Of Objects

• Summary

Chapter 3 - 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

• Summary

Chapter 4 - 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

• Summary

Chapter 5 - 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

• Summary

Chapter 6 - 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

• Example - Defining a Class

• Example - Fields

• Example - Defining a Method

• Example - Calling a Method

• Summary

Chapter 7 - 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

• Summary

Chapter 8 - 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

• Examples Of 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

• Summary

Chapter 9 - Advanced Control Structures

• 'switch' Statement

• Example - switch

• Switch "Fall Through"

• Using switch "Fall Through" for Multiple Options

• Strings in switch Statement

• 'for' Loop

• Example - for

• 'while' Loop

• Example - while

• 'do…while' Loop

• Example - do while

• Break Statement

• Example - break

• Labeled Statements

• Example - Labeled break

• Continue Statement

• Example - continue

• Example - Labeled continue

• Coding Tips - Control Structures

• Summary

Chapter 10 - Inheritance

• Inheritance Is…

• Inheritance Examples

• Declaring Inheritance

• Inheritance Hierarchy

• Access Modifiers Revisited

• Inherited Members

• Instances Of A Subclass

• Example Of Inheritance

• 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

• Summary

Chapter 11 - 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

• Variable Arguments Example

• Summary

Chapter 12 - 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

• Summary

Chapter 13 - 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

• Summary

Chapter 14 - 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

• Covariant Return Types – An Example

• Summary

Chapter 15 - 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

• Formatting Example

• Summary

Chapter 16 - 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

• Summary

Chapter 17 - 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

• Summary

Chapter 18 - Input and Output

• Overview of Java Input/Output

• The File Class