HARTMANN software group

Fast Track to Java 25 and OO Development Training in Las Vegas

Enroll in or hire us to teach our Fast Track to Java 25 and OO Development class in Las Vegas, Nevada by calling us @303.377.6176. Like all HSG classes, Fast Track to Java 25 and OO Development 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, Fast Track to Java 25 and OO Development may be taught at one of our local training facilities.
We offer private customized training for groups of 3 or more attendees.
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Course Description

  

Java 25 added a number of capabilities targeting ease of use, especially for those new to Java. Fast Track to Java and OO Development provides a comprehensive introduction to Java using these new capabilities. 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. It also covers details of the Java release cycle, and Long Term Support (LTS) releases.

The material and labs include some coverage of useful advanced and new Java capabilities such as the Java module structure, Java records, and other recent features and API enhancements. It also introduces important APIs such as the Java Collections Framework and the Date/Time API.

This course is suitable for environments using Java 25. It covers the many new features of Java 25 that make it easier for new users to learn it, as well as more advanced features that support creating cleaner and more compact code.

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: $1990 (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 - instance main(), IO Class
The Java Release Cycle
Program Lifecycle
The Java SE Development Kit (JDK)
LABS:
The Java Documentation
Hello World: A Simple Application
Using javac and java
 
- 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: Classes and Objects in Detail
More about Methods
Encapsulation and Access Control, public and private Access
Constructors, Initialization, Flexible Constructor Bodies (25+)
static Members of a Class
Type-safe Enums
LABS:
Accessor Methods
Encapsulation / Access Protection
Writing and Using Constructors
(Optional) Static Members
Using Enums
 
- Session 4: Flow of Control
Branching: if, if-else
Switch Statement and Switch Expressions
[Optional] Pattern Matching with Switch
Iteration: while, do-while, for, break, continue
LABS:
Data Validation with If
Using Switch Statement and Expressions
 
- Session 5: More about Classes and Objects
equals() and hashCode()
Record Classes
Wrapper Classes
Java 8+ Date/Time Support
Working with References
Formatted Output
LABS:
Importance of hashCode()
Record Classes
Working with Dates and Times
Formatted Output
[Optional] Using the Debugger
 
- Session 6: Strings, Arrays, and Dates/Times
String, StringBuffer, StringBuilder, Text Blocks, String Templates
Arrays, Primitive Arrays, Arrays of Reference Types
varargs
Revisiting main() Arguments and Signature
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
[Optional] 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 Chaining and Constructor Issues
Overriding Methods, @Override, Using Polymorphism
Abstract Classes
[Optional] Sealed Classes
[Optional] Sealed Classes
LABS:
Working with Composition
Using Inheritance
Polymorphism
[Optional] Abstract Classes
 
- Session 9: Interfaces
Defining and Implementing Interfaces
Using Interfaces
Default Methods and static Methods
LABS:
Using Interfaces to Remove Implementation Dependencies
[Optional] 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, SequencedCollection, 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: Additional Language Features
Functional Interfaces and Lambda Expressions
Garbage Collection and Collectors
Other Java Features
LABS:
Working with Lambdas (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: Overview of JDBC and JPA for DB Access (Optional)
JDBC Overview
JDBC Defined Types
Example of JBDC Usage
JPA High Level Overview
LABS:
Accessing a Database with JDBC (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...