java_platform - IEG 4180 IEG 4180 Network Software Design...

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Unformatted text preview: IEG 4180 IEG 4180 Network Software Design and Programming Network Software Design and Programming The Java Platform The Java Platform – A Brief Overview A Brief Overview IEG4180: Network Software Design and Programming - The Java Platform 2 Copyright Jack Y. B. Lee All Rights Reserved Contents • 1. Introduction • 2. Architecture • 3. Platform Highlights • 4. Development Platform • 5. Language Basics • 6. Object Allocation • 7. Parameter Passing • 8. Graphical User Interface • 9. Decompiler • 10. Obfuscator • 11. Non-Java Languages IEG4180: Network Software Design and Programming - The Java Platform 3 Copyright Jack Y. B. Lee All Rights Reserved 1. Introduction • In The Beginning ¡ Start out in 1991 by a team of Sun Microsystems Programmers, originally called the “Oak” language. ¡ The original goal is to develop a system for consumer electronic devices such as interactive TV setup-box and game console. • “the goal was ... to build a system that would let us do a large, distributed, heterogeneous network of consumer electronic devices all talking to each other.” - James Gosling. ¡ Retargeted at the Internet and business applications in 1994. IEG4180: Network Software Design and Programming - The Java Platform 4 Copyright Jack Y. B. Lee All Rights Reserved 1. Introduction • Design Goals ¡ Platform independence • Hardware diversity in consumer electronic devices • Java byte-code and the byte-code interpreter ¡ Reliability and Security • Imagine a refrigerator that needs to be “rebooted” from time to time to keep it running … or worst, gets hacked … • Make it hard to write buggy code and contain the damages if a fault occurs. ¡ Ease of Use (by the programmer) • To be widely adopted in many consumer electronics sectors the tools will have to be real easy to learn and use. IEG4180: Network Software Design and Programming - The Java Platform 5 Copyright Jack Y. B. Lee All Rights Reserved 2. Architecture • Traditional Programming Language Model Compiler Object Codes C/C++ Source Files Libraries (static & dynamic) Linker Executable Program CPU/OS-Specific OS Services API IEG4180: Network Software Design and Programming - The Java Platform 6 Copyright Jack Y. B. Lee All Rights Reserved 2. Architecture • Multi-Platform Software Development ¡ Through the use of a platform emulator : Application (CPU ‘X’, OS ‘U’) OS Services Emulation (‘U’-to-‘V’) Emulator (CPU ‘X’) Operating System ‘V’ Native Hardware (CPU ‘Y’) IEG4180: Network Software Design and Programming - The Java Platform 7 Copyright Jack Y. B. Lee All Rights Reserved 2. Architecture • Multi-Platform Software Development ¡ Through the use of an application framework : C/C++ Source Files Application Framework Framework API OS-Independent Object Codes Libraries (static & dynamic) Linker Executable Program CPU/OS-Specific OS Services API Compiler OS API IEG4180: Network Software Design and Programming - The Java Platform...
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This note was uploaded on 05/18/2010 for the course INFORMATIO IEG 4180 taught by Professor Jacky.b.lee during the Spring '09 term at CUHK.

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java_platform - IEG 4180 IEG 4180 Network Software Design...

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