Intermediate Advanced Java 11+

Teilnehmerkreis

    Web-Administrators
    Developpers
    Projectmanagers
    System-Administrators
    Technical Consultants

Ziel

• Solidify Java foundational knowledge, including the important contracts of class Object
• Understand the uses and consequences of inheritance and composition, and reinforce the role of interfaces
• Reinforce fundamental OO principles such as cohesion, coupling, and polymorphism
• Use the JUnit testing framework and become fluent in writing assertions to verify correct program behavior
• Familiarity with UML modeling in class diagrams and sequence diagrams
• Use advanced techniques for object creation, including factories and singletons
• Use established design patterns for object composition, including Strategy, Decorator, and Façade
• Write and use generic classes and methods
• Learn the use cases for inner classes and refactor existing code to use them when appropriate
• Create and use custom annotations
• Be familiar with reflection and how to use it
• Understand the role of functional interfaces
• Understand lambda expressions and method references, and use them to pass behavior (methods)
• Use the Stream API to perform complex processing of collections and other input sources
• Create and use Java modules, understanding module descriptors, modular JARs, exports and dependencies, and the modulepath
• Understand the structure and behavior of the modular JDK, and how it supports modular applications as well as legacy classpath-based code
• Migrate classpath-based applications to Java 11, understanding the stages of migration and options available

Kursinhalt

1. Session 1: Review – Basics

   • Java Environment
   • Classes and Objects
   • Instance Variables, Methods, Constructors, Static Members
   • OO Principles: Data Encapsulation, Cohesion
   • Object Contracts: toString(), equals() and hashCode(), Comparable and Comparator
   • Packages, Enums, Arrays
   • Exceptions
   • Date and Time API
   • New Language Features

    Session 2: Review (Inheritance and Interfaces)

   • UML Overview
   • Inheritance
   • Definition and IS-A Relationship
   • Method Overriding, @Override
   • OO Principles: Principle of Substitutability, Polymorphism and Encapsulation of Type, Coupling, Open-Closed Principle
   • Constructor Chaining
   • Interfaces
   • Defining and Implementing, Interface Types
   • Interface Inheritance
   • New Interface Features (Java 8+)
   • Default Methods, Static Methods
   • Functional Interfaces
   • Guidelines

    Session 3: Junit

   • Overview
   • Tests, Assertions, and Fixtures
   • Writing and Running Tests
   • Assertions
   • Test Fixtures, @Before and @After, @BeforeClass and @AfterClass
   • Testing for Exceptions
   • Best Practices and Test-Driven Development Overview (TDD)

    Session 4: Collections and Generics

   • Collections Overview
   • Generics and Type-Safe Collections
   • Diamond Operator
   • Lists, Sets, and Maps
   • Interfaces and Contracts
   • Iteration and Autoboxing
   • Utility Classes - Collections and Arrays
   • Writing Generic Classes
   • Inheritance with Generic Types
   • Wildcard Parameter Types
   • Type Erasure

   Session 5: Techniques of Object Creation

   • Design Patterns Overview
   • Controlling Object Creation
   • Limitations of new Operator, Alternative Techniques
   • Singleton Pattern
   • Simple Factory
   • Factory Method Pattern
   • Other Techniques

   Session 6: Using Composition and Inheritance Effectively

   • Inheritance and Composition - Pros and Cons
   • Composition and Delegation
   • HAS-A, USES Relationships
   • Strategy Pattern
   • Decorator Pattern
   • Façade and Other Patterns

   Session 7: Inner Classes

   • Overview and Motivation
   • Stronger Encapsulation, Rules and Caveats
   • Defining and Using Inner Classes
   • Member-Level, Method-Local, Anonymous Classes
   • Static Nested Classes
   • Nested Classes, Nested Interfaces, Nested Enums

   Session 8: Annotations

   • Overview
   • Using Annotations
   • Target and Retention Policy
   • Annotation Parameters, Parameter Shortcuts
   • Writing Custom Annotations

   Session 9: Reflection

   • Overview and API
   • The Class Called Class
   • Obtaining and Inspecting Class Objects
   • Working with Objects Reflectively

   Session 10: Lambda Expressions

   • Functional Interfaces and Lambdas
   • Target Context
   • Using Lambda Expressions
   • Syntax, Lambda Compatibility
   • Variable Capture
   • Type Inference
   • Method References

   Session 11: Streams

   • Overview
   • Streams vs. Collections
   • Anatomy of a Stream
   • Understanding the Stream API
   • Intermediate Operations and Stream Pipeline
   • Java 8 Functional Interfaces: Predicate, Comparator, Function
   • Stream Processing
   • Filtering, Sorting, Mapping
   • Terminal Operations
   • Collectors

   Session 12: Introduction to Modules

   • Motivation and Overview
   • Types of Modules
   • Modular JDK
   • Our Approach

    Session 13: Working with Modules

   • Defining and Using Modules
   • Services
   • Compatibility and Migration
   • Conclusion

Weitere Infos

Beginn:
Am ersten Kurstag um 10.00 Uhr: Ca. 15 Minuten sind vor Kursbeginn für die Registrierung vorgesehen. An den nachfolgenden Tagen sind die Kurszeiten von 9.00 - 17.00 Uhr.

Kurssparche: Deutsch

Kursunterlagen: Englisch

Enthaltene Leistungen:

• Schulungsunterlagen
• Teilnahmezertifikat