JAVA Programming “When you are willing to make sacrifices for a great cause, you will never be alone.” Instructor: รัฐภูมิ เถื่อนถนอม

About the Java Technology The Java Programming Language Java technology is both a programming language and a platform High-level language Simple Object oriented Distributed Multithreaded Portable Robust High performance Bytecodes — the machine language of the Java Virtual Machine

About the Java Technology The Java Programming Language Write once, run anywhere Through the Java VM, the same application is capable of running on multiple platforms.

About the Java Technology The Java Platform A platform is the hardware or software environment in which a program runs The Java platform has two components The Java Virtual Machine The Java Application Programming Interface (API) A large collection of ready-made software components Grouped into libraries of related classes and interfaces; these libraries are known as packages

“Hello World” for Microsoft Windows Checklist The Java SE Development Kit (JDK6) A text editor (Notepad) Eclipse (Integrated Development Environment) /** * The HelloWorldApp class implements an application that * simply prints "Hello World!" to standard output. */ class HelloWorldApp { public static void main(String[] args) { System.out.println("Hello World!"); // Display the string. }

Java APIs Application Programming Interface Java Platform, Standard Edition (Java SE) lets you develop and deploy Java applications on desktops and servers Java Platform, Enterprise Edition (Java EE) the industry standard for implementing enterprise- class service-oriented architecture (SOA) and next- generation web applications Java Platform, Micro Edition (Java ME) a robust, flexible environment for applications running on mobile and other embedded devices

Code Conventions for Java Programming Filenames, file organization, indentation, comments, declarations, statements, white space, naming conventions, programming practices 80% of the lifetime cost of a piece of software goes to maintenance. Hardly any software is maintained for its whole life by the original author. Code conventions improve the readability of the software, allowing engineers to understand new code more quickly and thoroughly. ConvTOC.doc.htmlhttp://java.sun.com/docs/codeconv/html/Code ConvTOC.doc.html

Software Development Knowledge Programming and Technologies Software Development Process and Management Software Analysis and Design (Object- oriented)

References l/index.html ConvTOC.doc.html