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Java Language

Course Objectives. Upon completing this course you should be able to:Describe the three main OOP concepts.Differentiate between

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Java Language

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    1. Java Language Abdulmalik S. Al-Gahmi October 4, 2001

    2. Course Objectives Upon completing this course you should be able to: Describe the three main OOP concepts. Differentiate between is a and has a Relationships Use Java standards for coding. Describe Java environment and how it works. Write java programs. Create packages and document them Create classes and interfaces. Create and manage a hierarchy of classes and interfaces Create objects out of classes. Use Java I/O capabilities. Connect to a database using JDBC Use Java API

    3. Course Organization Part 1: OOP Model Part 2: Java Basics Part 3: Java implementation of OOP Model Part 4: Java OOP Design Issues Part 5: Introduction to Java API Java I/O Java JDBC Part 6: Advanced Java Features Treads Exception Handling

    4. OOP Model Part 1

    5. Introduction To OOP Philosophy: Abstraction Growth: Machine Language Assembly Language Non-procedural Languages (BASIC) Procedural Languages (C, Pascal) OOP languages (C++, Java) OOP model is to eliminate the mapping from the problem space to solution space as possible.

    6. Objects Objects can be described in terms of: Their attributes Their behaviors Objects attributes and behaviors are encapsulated together a data type. Objects have a lifecycle: Creating objects Manipulating objects Cleaning up objects

    7. OOP Five Rules Alan Kay summarized five basic characteristics of Smalltalk: Everything is an object. A program is a bunch of objects telling each other what to do by sending messages. Each object has its own memory made up of other objects. Every object has a type. All objects of a particular type can receive the same messages.

    8. Objects Interfaces An object has to have an interface. The interface will Provide a way to let other objects to communicate with it. Hide the details of the object implementation. An example: Light bulb:

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