1. Getting Started With Java September 22, 2010

2. Java Bytecode  Bytecode : is a highly optimized set of instructions designed to be executed by the Java run-time system (JVM)  (The JVM is an interpreter for bytecode)

3. MAC InterpreterCompaq InterpreterHP Interpreter Compiler

4. Platform Independence  A programming language is considered platform independent or portable if the source code created on one computer platform can execute on another without any difficulty.

5. Compiled and Interpreted  Java uses a compiler to translate the source code by the programmer into bytecode  Java then continues and uses an interpreter to translate the bytecode into executable machine code.

6. Applications and Applets  A Java program designed to operate inside a webpage is called an applet  A Java program designed to operate in a stand-alone environment is called an application

7. Our first Data Types  String – stores sequences of characters.  Int – an integer (only whole numbers)  Double - allows for fractional components of numbers (most common)  Float - also allows for fractional components of numbers

8. Logical Operators  & -- AND  |-- OR  ^ --XOR (exclusive or)  || -- short-circuit OR  && -- short-circuit AND  ! -- NOT