Intermediate/Advanced Java (11+) Training in Osnabruck, Germany

Enroll in or hire us to teach our Intermediate/Advanced Java (11+) class in Osnabruck, Germany by calling us @303.377.6176. Like all HSG classes, Intermediate/Advanced Java (11+) may be offered either onsite or via instructor led virtual training. Consider looking at our public training schedule to see if it is scheduled: Public Training Classes
Provided there are enough attendees, Intermediate/Advanced Java (11+) may be taught at one of our local training facilities.
We offer private customized training for groups of 3 or more attendees.

Course Description

 

This is a fast-paced course suitable for developers with some previous experience in working with Java and Object-Oriented (OO) programming. The course can also be delivered to developers experienced in other OO languages (Python, C++, C#) but with limited Java exposure, as well as used as an advanced Java course for more experienced developers. It includes an accelerated, yet thorough, hands-on review of Java foundational concepts, with attention given to OO design and implementation principles. Unit testing is stressed throughout the course, with most labs implemented as JUnit tests. The course is very hands-on, including numerous code examples and programming labs that reinforce the concepts presented, so that attendees can immediately employ what they’ve learned in their current projects.

Course Length: 5 Days
Course Tuition: $2090 (US)

Prerequisites

Working knowledge of Java programming, including use of inheritance, interfaces, and exceptions.

Course Outline

 
 
  • - Preface: Java State of the Union
    • Java Release Cycle
    • New Java Versions
       
  • - 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
      • Named Objects, JNDI
      • Dependency Injection Frameworks
         
  • - 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
      • Façade, Proxy, Template Method
         
  • - 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
      • Syntax, Using the Meta-Annotations
      • Using a Custom Annotation
         
  • - Session 9: Reflection
    • Overview and API
      • The Class Called Class
      • Obtaining and Inspecting Class Objects
    • Working with Objects Reflectively
      • Creating Instances, Invoking Methods, Setting Field Values
         
  • - Session 10: Lambda Expressions
    • Functional Interfaces and Lambdas
    • Target Context
    • Using Lambda Expressions
      • Syntax, Lambda Compatibility
      • Variable Capture
      • Type Inference
    • Method References
      • Three Types of Method References
      • Refactoring Lambdas into 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
      • Concepts
      • Partitioning and Grouping
         
  • - 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
  • - Preface: Java State of the Union
    • Java Release Cycle
    • New Java Versions
  • - 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
      • Named Objects, JNDI
      • Dependency Injection Frameworks
  • - 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
      • Façade, Proxy, Template Method
  • - 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
      • Syntax, Using the Meta-Annotations
      • Using a Custom Annotation
  • - Session 9: Reflection
    • Overview and API
      • The Class Called Class
      • Obtaining and Inspecting Class Objects
    • Working with Objects Reflectively
      • Creating Instances, Invoking Methods, Setting Field Values
  • - Session 10: Lambda Expressions
    • Functional Interfaces and Lambdas
    • Target Context
    • Using Lambda Expressions
      • Syntax, Lambda Compatibility
      • Variable Capture
      • Type Inference
    • Method References
      • Three Types of Method References
      • Refactoring Lambdas into 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
      • Concepts
      • Partitioning and Grouping
  • - 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
  • - Preface: Java State of the Union
    • Java Release Cycle
    • New Java Versions
  • - 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
      • Named Objects, JNDI
      • Dependency Injection Frameworks
  • - 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
      • Façade, Proxy, Template Method
  • - 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
      • Syntax, Using the Meta-Annotations
      • Using a Custom Annotation
  • - Session 9: Reflection
    • Overview and API
      • The Class Called Class
      • Obtaining and Inspecting Class Objects
    • Working with Objects Reflectively
      • Creating Instances, Invoking Methods, Setting Field Values
  • - Session 10: Lambda Expressions
    • Functional Interfaces and Lambdas
    • Target Context
    • Using Lambda Expressions
      • Syntax, Lambda Compatibility
      • Variable Capture
      • Type Inference
    • Method References
      • Three Types of Method References
      • Refactoring Lambdas into 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
      • Concepts
      • Partitioning and Grouping
  • - 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

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Java Programming Uses & Stats

Java Programming is Used For:
Android & IOS Development Software Products Video Games Desktop GUI's
Difficulty
Popularity
Year Created
1995
Pros

Most Commonly Used: 
According to Oracle, three billion devices run on Java.  And, because of its real-world applications, it consistently ranks at the top of the TIOBE Programming Community Index. 

Great Career Choice: 
Some of the fastest-growing salaries in the U.S. in 2018 are for Java developers.  (Glassdoor)  

Android Apps Development:
Developers predominatly use their Java skills in building apps for Google's Android. The Android platform is the number one mobile paltform in the world

It Can Run On Any Platform:
Java can compile on Windows and run the same compiled file on Linux, Windows and Mac.

Great Supporting IDE's:
Over the years, coding in Java has become simpler with the introduction of open source development tools, i.e. Eclipse and NetBeans that use Java capabilities for debugging.  
 

Cons

Uses a Lot of Memory:
Performance can be significantly slower with Java and more memory-consuming than natively compiled languages such as C or C++.

Difficulty in Learning: 
Learning Java can be a bit challenging if you are a beginner.  However, once you get the hang of Object Oriented Programming and a decent grasp of the syntax, you will be well on your way.

Slow Start Up Times:
There is quite a bit of one-time initialization done by JDK classes before compiling as well as loading classes and verification (making sure code doesn't do evil things, all of which takes longer that some other languages such as C. 

Verbose and Complex Code:
Long, over-complicated sentences make code less readable and scannable. Compare to let's say Python, we can see how clear Python code appears: It doesn’t require semicolons; uses “and,” “or,” and “not” as operators instead of Java’s “&&,” “||,” and “!”; and generally has fewer bells and whistles such as parentheses or curly braces.

Commercial License Cost:
Companies have to prepare for the changes that Oracle will institute in 2019 . Today, the current version of Java is free and available for redistribution for general purpose computing. However, If you are a DEVELOPER, Oracle recommends you review the roadmap information for Java SE 8 and beyond and take appropriate action depending on the type of application you develop and your distribution mode.

Java Programming Job Market
Average Salary
$102,000
Job Count
26,856
Top Job Locations

New York City 
San Jose
Washington D.C, 

Complimentary Skills to have along with Java Programming

- If you are an experienced Java developer, learning a complimentary language to Java should come much more naturally.  As an example JetBrains recently created the Kotlin programming language which is officially supported by Google for mobile development.  Kotlin compiles to Java bytecode and runs on the JVM; it's purported to address many of Java's shortcomings...

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