HARTMANN software group

Gentle Java and OO Development Training

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

  
This course covers the core OO and Java concepts that developers need to use the Java programming language to create well designed Java programs. It focuses on key OO capabilities and how to use them in Java. This includes material on creating well designed Java classes, using encapsulation, building more complex functionality with composition, and using inheritance to share functionality and create specialized types. This course is suitable for environments using either Java 5, Java 6, or Java 7. The material includes coverage of all current Java capabilities that are within the scope of the material, including new Java 7 capabilities such as strings in switch statements, and Multi-catch. It also stresses the use of good coding practices for all the examples and labs. All labs are doable in any of the supported Java environments. This course is available for most IDEs, such as Eclipse and IBM RAD. This course draws on our extensive experience to provide a solid understanding of the concepts and practices needed to write good object oriented programs in Java.  Be prepared to work hard and learn a great deal! This course can be followed by our Intermediate Java course. The course can be held on-site & customized to fit your needs.
Course Length: 4 Days
Course Tuition: $1690 (US)

Prerequisites
Gentle Java and OO Development is geared to audiences with no background in Object-Oriented programming or Java. Supported Platforms: Java 5, Java 6, Java 7, IBM RAD (7, 7.5, 8.0, 8.5), Eclipse (any relatively recent version)

Course Outline

  

 

Session 1: A First Look
 
A Simple Java Class
Java’s “Hello World” Program
LABS: 
Hello World:  A Simple Application
 
Session 2: Java Basics
 
Language and Platform Features
Program Life Cycle
The Java SE Development Kit (JDK)
LABS: 
Working with the Development Environment
 
Session 3: 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
Writing and Using a Class Definition with Fields and Methods
 
Session 4: More on Classes and Objects
 
Accessing data, the "this" variable
Encapsulation and Access Control, public and private Access
Constructors and Initialization
static Members of a Class
Scopes, Blocks, References to Objects
LABS: 
Encapsulation / Access Protection
Writing and Using Constructors
(Optional) Static Members
Using the Debugger
 
Session 5: Flow of Control
 
Branching: if, if-else, switch
Iteration: while, do-while, for, break, continue
LABS: 
Flow of Control / Data Validation
 
Session 6: Strings and Arrays
 
String, StringBuffer, StringBuilder
Arrays, Primitive Arrays, Arrays of Reference Types
varargs
LABS: 
Using Strings and Arrays
 
Session 7: Packages
 
Package Overview - Using Packages to Organize Code
import statements
Creating Packages, package Statement, Required Directory Structure
Finding Classes, Packages and Classpath
LABS:
Using Packages to Organize Code
 
 
Session 8: Composition and Inheritance
 
Using Composition to Deal With Complexity
Composition/HAS-A, Delegation
Using Inheritance and Polymorphism to share commonality
IS-A, extends, Inheriting Features, Overriding Methods, Using Polymorphism
Class Object
Abstract Classes
LABS:
(Optional) Working with Composition
Using Inheritance to Specialize Classes
 
Session 9: Interfaces Overview
 
Using Interfaces to Define Types
Interfaces and Abstract Classes
 
Session 10: Exceptions
 
Exceptions and the Exception Hierarchy
try and catch
Handling Exceptions
Program Flow with Exceptions
finally
LABS:
Throwing and Handling Exceptions
 
Session 11: JDBC
 
JDBC basics
JDBC Architecture
Using JDBC drivers & DriverManager
Class Connection and connecting to a database
Class Statement and executing SQL statements
Other statement types
LABS:
Connecting and Querying using JDBC
 
Session 12: Java Collections and Generics
 
The Collections Framework and its API
Collections and Java Generics
Collection, Set, List, Iterator
Autoboxing
for-each Loop
LABS: 
Using Lists and Generics
 
Session 13: Additional Java Features
 
Type-safe Enums
Additional Features in Java 6 and Java 7

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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...

Interesting Reads Take a class with us and receive a book of your choosing for 50% off MSRP.