Java 8 Essential Training

Introduction

• Welcome
• Is this course for you?
• Using the exercise files
• Which version of Java do you want to learn?

• The history of Java
• Principles and components of Java
• Java syntax and compilation
• Memory management and garbage collection
• Choosing a development environment

• Installing Java on Windows
• Installing Java on OS X
• Installing IntelliJ IDEA on Windows
• Installing IntelliJ IDEA on OS X
• Installing BlueJ

• Hello World
• Passing arguments to a console application
• Organizing Java classes in packages
• Creating a Java project in IntelliJ IDEA
• Taking a tour of IntelliJ IDEA
• Creating a Java project in BlueJ
• Using the Java API documentation

• Working with primitive variables
• Declaring and initializing numeric primitives
• Representing currency values with BigDecimal
• Converting numeric values
• Using mathematical operators and the Math class
• Working with Boolean values and expressions
• Working with character values
• Using Java operators

• Working with object data types
• Using the String class
• Converting primitive values to strings
• Building a string from multiple values
• Comparing string values
• Formatting numeric values as strings
• Parsing string values
• Working with dates and times
• Challenge: Creating a simple calculator application
• Solution: Creating a simple calculator application

• Understanding syntax errors vs. runtime exceptions
• Debugging with IntelliJ IDEA
• Handling exceptions with try/catch
• Creating multiple catch blocks
• Throwing custom exceptions

• Programming conditional logic
• Using the switch statement
• Creating looping code blocks
• Creating reusable code with methods
• Overloading methods with different signatures
• Passing arguments by reference or by value
• Challenge: Creating a more complex calculator application
• Solution: Creating a more complex calculator application

• Using simple arrays
• Using two-dimensional arrays
• Managing resizable arrays with ArrayList
• Managing unordered data with HashMap
• Looping through collections with iterators and for-each

• Understanding encapsulation
• Creating and instantiating custom classes
• Creating nested and anonymous classes
• Visualizing class relationships
• Storing data in instance variables
• Declaring instance and static methods
• Using constructor methods
• Using static variables as constants
• Declaring and using enum types

• Understanding inheritance and polymorphism
• Extending classes and overriding methods
• Creating and implementing interfaces
• Using abstract classes and methods

• Managing files with the original File class
• Managing files with Java 7's new I/O library
• Managing files with Apache Commons FileUtils
• Reading a text file over the Internet

• Documenting code with Javadoc
• Packaging classes in JAR files

• Next steps