HARTMANN software group

Fast Track to Java 17 and OO Development Training

We offer private customized training for groups of 3 or more attendees.
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Course Description

  
Fast Track to Java and OO Development provides a comprehensive introduction to Java. It is suitable for programmers with good working programming experience (no Java experience needed). It can be taught to audiences with less experience by reducing coverage of the optional, more advanced, topics.
 
In addition to covering basic Java programming, the course provides a solid understanding of the core OO and Java concepts and practices needed to create well-designed Java programs. This includes creating well-designed Java classes, encapsulation, composition, and inheritance/interfaces.
 
The material and labs include coverage of useful new Java capabilities such as the Java 9+ module structure, and other recent features and API enhancements. It also introduces important APIs such as the Java Collections Framework, and JDBC/JPA. This course is suitable for environments using Java 11-17. It also covers details of the Java release cycle, and Long Term Support (LTS) releases.
 
Be prepared to work hard and learn a great deal! The course can be held on-site & customized to fit your needs.
Course Length: 5 Days
Course Tuition: $2090 (US)

Prerequisites
Working knowledge of some programming language - no Java experience needed

Course Outline

  
  • - Session 1: Java Overview
    • Language and Platform Features
    • A Simple Java Program
    • The Java Release Cycle
    • Program Lifecycle
    • The Java SE Development Kit (JDK)
    • LABS:
      • Hello World: A Simple Application
  • - Session 2: Class and Object Basics
    • The Object Model and Object-Oriented Programming
    • Classes, References, and Instantiation
    • Adding Data to a Class Definition
    • Adding Methods (Behavior)
    • LABS:
      • Exploring Types and Object Instances
      • Introducing your IDE
      • Writing and Using a Class Definition with Fields and Methods
  • - Session 3: More on Classes and Objects
    • More about Methods
    • Encapsulation and Access Control, public and private Access
    • Constructors and Initialization
    • static Members of a Class
    • LABS:
      • Accessor Methods
      • Encapsulation / Access Protection
      • Writing and Using Constructors
      • (Optional) Static Members
  • - Session 4: Flow of Control
    • Branching: if, if-else, switch
    • Iteration: while, do-while, for, break, continue
    • LABS:
      • Data Validation
  • - Session 5: More about Classes and Objects
    • Type-safe Enums
    • Wrapper Classes
    • Java 8+ Date/Time Support
    • Working with References
    • Formatted Output
    • LABS:
      • Using enums
      • Working with Dates and Times
      • Using the Debugger
  • - Session 6: Strings, Arrays, and Dates/Times
    • String, StringBuffer, StringBuilder
    • Arrays, Primitive Arrays, Arrays of Reference Types
    • varargs
    • LABS:
      • Using Strings and Arrays
  • - Session 7: Packages and Modules
    • Package Overview - Using Packages to Organize Code
    • Creating Packages, package Statement, Required Directory Structure
    • import statements
    • Classpath
    • Java Modules Overview
    • Defining Modules, Requires, and Exports
    • Module Path and Classpath - Differences and Coexistence
    • LABS:
      • Using Packages
      • Using Java Modules
  • - Session 8: Composition and Inheritance
    • Using Composition to Deal With Complexity
    • Composition/HAS-A, Delegation
    • Using Inheritance to share commonality
    • IS-A, extends Inheriting Features
    • Constructor Issues
    • Overriding Methods, @Override, Using Polymorphism
    • Abstract Classes
    • LABS:
      • (Optional) Working with Composition
      • Using Inheritance
      • Polymorphism
      • [Optional] Polymorphism
  • - Session 9: Interfaces
    • Defining and Implementing Interfaces
    • Using Interfaces
    • Default Methods and static Methods
    • LABS:
      • Using Interfaces to Remove Implementation Dependencies
      • Using Default and Static Methods
  • - Session 10: Exceptions
    • Exceptions and the Exception Hierarchy
    • Throwing Exceptions and Checked Exceptions
    • try and catch
    • Handling Exceptions
    • try and catch
    • Program Flow with Exceptions
    • Multicatch, finally, try-with-resources
    • LABS:
      • Throwing Exceptions
      • Checked Exceptions
  • - Session 11: Java Collections and Generics
    • The Collections Framework and its API
    • Collections and Java Generics
    • Collection, List, Set, Map
    • Autoboxing
    • Collections of Object (non-generic)
    • Using ArrayList, HashSet, and HashMap
    • for-each Loop
    • Processing Items With an Iterator
    • [Optional] More About Generics
    • LABS:
      • Using Collections and Generics
  • - Session 12: Database Access with JDBC and JPA
    • JDBC Overview
    • JDBC Defined Types
    • Example of JBDC Usage
    • JPA Overview
    • JPA Architecture and Programming View
    • Mapping Entity Classes with Annotations
    • Persistence Unit, EntityManagerFactory, and EntityManager
    • Working with JPA (Find by primary key and inserts)
    • LABS:
      • Mapping an Entity Class
      • Using JPA
      • Insert/Query Demo
  • - Session 13: I/O Streams (Optional)
    • I/O Streams Overview
    • Readers and Writers
    • Exception Handling
    • Byte Streams
    • Working with Files
    • NIO, Paths, Files
    • LABS:
      • Reading and Writing Files
      • Using Byte Streams (Optional)
  • - Session 14: Additional Language Features (Optional)
    • Functional Interfaces and Lambda Expressions
    • Switch Expressions
    • Other Java Features
    • LABS:
      • Working with Lambdas (Demo)

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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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