Intro to java programming

Jan 29, 2014Download as PPTX, PDF0 likes973 views

This document provides an agenda and overview for an intro to Java programming class. It includes an introduction to Java history, installations, and an overview of the Java language and object-oriented concepts. The class will cover installing Java, the Eclipse IDE, and ObjectAid plugin. It will also introduce object-oriented concepts like abstraction, encapsulation, inheritance and polymorphism.

Adgenda
• Class Introductions
• Brief History of Java
• Installations
• Java JDK
• Eclipse IDE

• High Level Overview of Java Language
• Object Orientation Introduction

Class Introductions
• Name
• Grade
• Programming Experience
• Any languages other than java?

• Favorite musical artist
• What you expect to get from the class.

Brief History of Java
• Developed at Sun Microsystems by James
Gosling
• Initial version was, called Oak, was based on C++

• Released in 1995
• Initial vision was to automate consumer devices
(TVs, cable boxes,VCRs etc.)

• Released with the HotJava browser
• Designed with a write once run anywhere
concept (Hardware independent)

Installations
• Copy the JavaClass directory from the USB
drive to your C drive
• Run the java installer (either 32 or 64 bit
depending on your OS)
• Extract the eclipse distribution archive into the
JavaClass directory on your C drive
• Copy JarClassFinder to the eclipse dropins
directory
• Install ObjectAid from the update site
(http://www.objectaid.net/update)

Installations
• Expand the JAutoDoc plugin into the eclipse
directory

Java Overview
• Object oriented
• Two types of java programs
• Standalone
• Normal program run on a computer
• Can have a GUI or be headless

• Applet
• Run inside a web browser

Java Overview
• Anatomy of a java class file

Object Orientation
• What is OO?
• An OO solution categorized into 3 phases
• Analysis
• The analysis of a problem that focuses on the problem domain
and the discovery of the domain entities and their interactions
and relevant state information.

• Design
• The process of taking the analysis output and refining and
extending it into a collection of cooperating classes that can be
implemented to form a solution to a set of user requirements.

• Programming
• An approach that facilitates creation of modular, reusable
components through the use of object oriented concepts.

Object Orientation
• OO Concepts
• Abstraction
• The identification of the essential characteristics of an
item

• Encapsulation
• The grouping of related concepts into one item, such as a
class or component

• Information hiding
• The restriction of external access to attributes

• Aggregation
• Represents “is part of” or “contains” relationships
between two classes or components

Object Orientation
• OO Concepts (Continued)
• Class
• A template from which objects are

• Interface
• The definition of a collection of one or more operation
signatures that defines a cohesive set of behaviors

• Collaboration
• Classes work together (collaborate) to fulfill their
responsibilities

• Message
• A message is either a request for information or a request
to perform an

Object Orientation
• OO Concepts (Continued)
• Operation
• Something a class does (similar to a function in structured
programming)

• Inheritance (Single and Multiple)
• Represents “is a”, “is like”, and “is kind of”
relationships. When class “B” inherits from class “A” it
automatically has all of the attributes and operations that
“A” implements

• Polymorphism
• Different objects can respond to the same message in
different ways, enable objects to interact with one another
without knowing their exact type

Object Orientation
• OO Concepts (Continued)
• Subclass
• If class “B” inherits from class “A,” we say that “B” is a
subclass of “A”

• Superclass
• If class “B” inherits from class “A,” we say that “A” is a
superclass of “B”

• Operation
• Something a class does (similar to a function in structured
programming)

Object Orientation
• OO Concepts (Continued)
• Override
• Sometimes you need to override (redefine) attributes
and/or methods in subclasses

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Intro to java programming

1. Intro to Java Programming

2. Adgenda • Class Introductions • Brief History of Java • Installations • Java JDK • Eclipse IDE • High Level Overview of Java Language • Object Orientation Introduction

3. Class Introductions • Name • Grade • Programming Experience • Any languages other than java? • Favorite musical artist • What you expect to get from the class.

4. BRIEF HISTORY OF JAVA

5. Brief History of Java • Developed at Sun Microsystems by James Gosling • Initial version was, called Oak, was based on C++ • Released in 1995 • Initial vision was to automate consumer devices (TVs, cable boxes,VCRs etc.) • Released with the HotJava browser • Designed with a write once run anywhere concept (Hardware independent)

6. Brief History of Java

7. INSTALLATIONS

8. Installations • Copy the JavaClass directory from the USB drive to your C drive • Run the java installer (either 32 or 64 bit depending on your OS) • Extract the eclipse distribution archive into the JavaClass directory on your C drive • Copy JarClassFinder to the eclipse dropins directory • Install ObjectAid from the update site (http://www.objectaid.net/update)

9. Installations • Expand the JAutoDoc plugin into the eclipse directory

10. JAVA OVERVIEW

11. Java Overview • Object oriented • Two types of java programs • Standalone • Normal program run on a computer • Can have a GUI or be headless • Applet • Run inside a web browser

12. Java Overview • Anatomy of a java class file

13. OBJECT ORIENTATION

14. Object Orientation • What is OO? • An OO solution categorized into 3 phases • Analysis • The analysis of a problem that focuses on the problem domain and the discovery of the domain entities and their interactions and relevant state information. • Design • The process of taking the analysis output and refining and extending it into a collection of cooperating classes that can be implemented to form a solution to a set of user requirements. • Programming • An approach that facilitates creation of modular, reusable components through the use of object oriented concepts.

15. Object Orientation • OO Concepts • Abstraction • The identification of the essential characteristics of an item • Encapsulation • The grouping of related concepts into one item, such as a class or component • Information hiding • The restriction of external access to attributes • Aggregation • Represents “is part of” or “contains” relationships between two classes or components

16. Object Orientation • OO Concepts (Continued) • Class • A template from which objects are • Interface • The definition of a collection of one or more operation signatures that defines a cohesive set of behaviors • Collaboration • Classes work together (collaborate) to fulfill their responsibilities • Message • A message is either a request for information or a request to perform an

17. Object Orientation • OO Concepts (Continued) • Operation • Something a class does (similar to a function in structured programming) • Inheritance (Single and Multiple) • Represents “is a”, “is like”, and “is kind of” relationships. When class “B” inherits from class “A” it automatically has all of the attributes and operations that “A” implements • Polymorphism • Different objects can respond to the same message in different ways, enable objects to interact with one another without knowing their exact type

18. Object Orientation • OO Concepts (Continued) • Subclass • If class “B” inherits from class “A,” we say that “B” is a subclass of “A” • Superclass • If class “B” inherits from class “A,” we say that “A” is a superclass of “B” • Operation • Something a class does (similar to a function in structured programming)

19. Object Orientation • OO Concepts (Continued) • Override • Sometimes you need to override (redefine) attributes and/or methods in subclasses

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