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Lecture 1 - Java Features

Lecture 1 - Java Features - Java Features Language...

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Java Features Language Paradigms Languages like Pascal, FORTRAN and C are structured languages. - They support the modular design of software with subprograms (procedures and functions) - Large systems are created using structured analysis and design methods. Languages like Java and Smalltalk are object-oriented languages. - Programs are viewed as objects passing messages to each other - Objects are instances of classes - Large systems are created using object-oriented analysis and design (OOAD) methods. Java History 1991: Oak Project at Sun Microsystems - Goal was a portable language for consumer electronic devices - Wanted to avoid rewriting assembly language programs for each device - Uses the idea of a virtual machine (interpreter) and byte code (machine language for the VM(virtual machine) ) - Lead by James Gosling 1993: World Wide Web created - Mosaic, the first web browser released - Allows text and graphics to be distributed over the internet - Uses the HyperText Markup Language (HTML) 1994: Oak adapted to work over the web
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